（企业案例）使用Nacos持久化规则，改造sentinel-dashboard

小灰灰 2022-09-03 08:23 263阅读 0赞

### 文章目录 ###

*   *   *   *   *  一、前言
                 *   *  1. 版本选取
                     *  2. 克隆代码
                     *  3. 导入 IDEA
                 *  二、全局修改
                 *   *  2.1. 修改 POM
                     *  2.2. 修改配置文件
                 *  三、后端代码修改
                 *   *  3.1. 包结构部分
                     *  3.2. nacos 配置文件
                 *  四、创建规则与 Nacos 交互类
                 *   *  4.1. 创建授权规则与 Nacos 交互类
                     *  4.2. 创建降级规则与 Nacos 交互类
                     *  4.3. 创建流控规则与 Nacos 交互类
                     *  4.4. 创建网关流控规则与 Nacos 交互类
                     *  4.5. 创建热点规则与 Nacos 交互类
                     *  4.6. 创建系统规则与 Nacos 交互类
                 *  五、控制层修改
                 *   *  5.1. AuthorityRuleController
                     *  5.2. DegradeController
                     *  5.3. FlowControllerV2
                     *  5.4. GatewayApiController
                     *  5.5. GatewayFlowRuleController
                     *  5.6. ParamFlowRuleController
                     *  5.7. SystemController
                 *  六、前端代码调整
                 *   *  6.1. sidebar.html
                     *  6.2. flow\_service\_v1.js
                     *  6.3. identity.js
                     *  6.4. flow\_v2.html
                 *  七、修改的文件总览
                 *   *  7.1. 后端文件列表
                     *  7.2. 前端文件列表
                 *  八、编译打包
                 *   *  8.1. 编译前端
                     *  8.2. 编译打包后端
                 *  九、测试验证
                 *   *  9.1. 版本选取
                     *  9.2. 启动nacos
                     *  9.3. 启动sentinel-dashboard
                     *  9.4. 添加流控规则
                     *  9.5. 重启sentinel-dashboard
                     *  9.6. 删除流控规则
                     *  9.7. nacos删除流控规则
                     *  9.8. nacos修改流控规则
                     *  9.9. 测试结论
                 *  十、微服务集成
                 *   *  10.1. pom依赖引入
                     *  10.2. sentinel规则持久化配置
                     *  10.3. nacos效果图

##### 一、前言 #####

###### 1. 版本选取 ######

要想改造 sentinel-dashboard，需要修改 dashboard 的源码。（本文基于sentinel 1.8.2）

###### 2. 克隆代码 ######

先通过 Github 拉取 Sentinel 源码，GitHub 地址：[https://github.com/alibaba/Sentinel][https_github.com_alibaba_Sentinel]  
![在这里插入图片描述][watermark_type_ZmFuZ3poZW5naGVpdGk_shadow_10_text_aHR0cHM6Ly9ibG9nLmNzZG4ubmV0L3dlaXhpbl80MDgxNjczOA_size_16_color_FFFFFF_t_70]

###### 3. 导入 IDEA ######

下载依赖，进入 sentinel-dashboard 模块，所有的修改都在该模块下。  
![在这里插入图片描述][watermark_type_ZmFuZ3poZW5naGVpdGk_shadow_10_text_aHR0cHM6Ly9ibG9nLmNzZG4ubmV0L3dlaXhpbl80MDgxNjczOA_size_16_color_FFFFFF_t_70 1]

##### 二、全局修改 #####

###### 2.1. 修改 POM ######

想要将 dashboard 的规则持久化到 Nacos，需要添加一个依赖，源码中已经添加，不过只在测试环境下打包进去了。  
在 pom.xml 文件中找到以下依赖，去掉 scope 或注释掉。

<dependency>
        <groupId>com.alibaba.csp</groupId>
        <artifactId>sentinel-datasource-nacos</artifactId>
        
    </dependency>

![在这里插入图片描述][watermark_type_ZmFuZ3poZW5naGVpdGk_shadow_10_text_aHR0cHM6Ly9ibG9nLmNzZG4ubmV0L3dlaXhpbl80MDgxNjczOA_size_16_color_FFFFFF_t_70 2]

###### 2.2. 修改配置文件 ######

找到配置文件 `application.properties` 文件，在末尾添加一下配置：

#Nacos Configurations
    sentinel.nacos.serverAddr=localhost:8848
    sentinel.nacos.namespace=
    sentinel.nacos.group-id=SENTINEL-GROUP

注：`sentinel.nacos.serverAddr` 是 Nacos 服务器地址，如果是集群则用逗号隔开  
![在这里插入图片描述][watermark_type_ZmFuZ3poZW5naGVpdGk_shadow_10_text_aHR0cHM6Ly9ibG9nLmNzZG4ubmV0L3dlaXhpbl80MDgxNjczOA_size_16_color_FFFFFF_t_70 3]

##### 三、后端代码修改 #####

###### 3.1. 包结构部分 ######

新建包 `com.alibaba.csp.sentinel.dashboard.rule.nacos`，并在该包下根据以下结构新建包

├─auth #存放授权规则相关类
    ├─degrade #存放降级规则相关类
    ├─flow #存放限流规则相关类
    ├─gateway #存放网关限流规则相关类
    │  ├─api
    │  └─flow
    ├─param #存放热点规则相关类
    └─system #存放系统规则相关类

###### 3.2. nacos 配置文件 ######

![在这里插入图片描述][watermark_type_ZmFuZ3poZW5naGVpdGk_shadow_10_text_aHR0cHM6Ly9ibG9nLmNzZG4ubmV0L3dlaXhpbl80MDgxNjczOA_size_16_color_FFFFFF_t_70 4]

直接在`com.alibaba.csp.sentinel.dashboard.rule.nacos`包下创建以下类：  
①`NacosPropertiesConfig`，存放前面配置文件中关于 Nacos 的配置

package com.alibaba.csp.sentinel.dashboard.rule.nacos;
    
    import org.springframework.boot.context.properties.ConfigurationProperties;
    
    /**
     * @author gblfy
     * @date 2021-08-05
     */
    @ConfigurationProperties("sentinel.nacos")
    public class NacosPropertiesConfig { 
        private String serverAddr;
        private String dataId;
        private String groupId = "SENTINEL_GROUP"; // 默认分组
        private String namespace;
    
        public String getServerAddr() { 
            return serverAddr;
        }
    
        public void setServerAddr(String serverAddr) { 
            this.serverAddr = serverAddr;
        }
    
        public String getDataId() { 
            return dataId;
        }
    
        public void setDataId(String dataId) { 
            this.dataId = dataId;
        }
    
        public String getGroupId() { 
            return groupId;
        }
    
        public void setGroupId(String groupId) { 
            this.groupId = groupId;
        }
    
        public String getNamespace() { 
            return namespace;
        }
    
        public void setNamespace(String namespace) { 
            this.namespace = namespace;
        }
    }

②`NacosConfigUtil`，存放一些常量，各种规则文件名后缀。

package com.alibaba.csp.sentinel.dashboard.rule.nacos;
    
    /**
     * @author gblfy
     * @date 2021-08-05
     */
    public final class NacosConfigUtil { 
    
        public static final String GROUP_ID = "SENTINEL_GROUP";
    
        public static final String FLOW_DATA_ID_POSTFIX = "-flow-rules";
        public static final String DEGRADE_DATA_ID_POSTFIX = "-degrade-rules";
        public static final String PARAM_FLOW_DATA_ID_POSTFIX = "-param-rules";
        public static final String SYS_DATA_ID_POSTFIX = "-system-rules";
        public static final String AUTH_DATA_ID_POSTFIX = "-auth-rules";
    
        public static final String GATEWAY_FLOW_DATA_ID_POSTFIX = "-gateway-flow";
        public static final String GATEWAY_API_DATA_ID_POSTFIX = "-gateway-api";
    
        public static final String CLUSTER_MAP_DATA_ID_POSTFIX = "-cluster-map";
    
        /**
         * cc for `cluster-client`
         */
        public static final String CLIENT_CONFIG_DATA_ID_POSTFIX = "-cc-config";
        /**
         * cs for `cluster-server`
         */
        public static final String SERVER_TRANSPORT_CONFIG_DATA_ID_POSTFIX = "-cs-transport-config";
        public static final String SERVER_FLOW_CONFIG_DATA_ID_POSTFIX = "-cs-flow-config";
        public static final String SERVER_NAMESPACE_SET_DATA_ID_POSTFIX = "-cs-namespace-set";
    
        private NacosConfigUtil() { }
    }

③ NacosConfig

package com.alibaba.csp.sentinel.dashboard.rule.nacos;
    
    import com.alibaba.csp.sentinel.dashboard.datasource.entity.gateway.ApiDefinitionEntity;
    import com.alibaba.csp.sentinel.dashboard.datasource.entity.gateway.GatewayFlowRuleEntity;
    import com.alibaba.csp.sentinel.dashboard.datasource.entity.rule.*;
    import com.alibaba.csp.sentinel.datasource.Converter;
    import com.alibaba.fastjson.JSON;
    import com.alibaba.nacos.api.PropertyKeyConst;
    import com.alibaba.nacos.api.config.ConfigFactory;
    import com.alibaba.nacos.api.config.ConfigService;
    import org.springframework.boot.context.properties.EnableConfigurationProperties;
    import org.springframework.context.annotation.Bean;
    import org.springframework.context.annotation.Configuration;
    
    import java.util.List;
    import java.util.Properties;
    
    /**
     * @author gblfy
     * @date 2021-08-05
     */
    @EnableConfigurationProperties(NacosPropertiesConfig.class)
    @Configuration
    public class NacosConfig { 
    
        //====================流控规则 Converter
        @Bean
        public Converter<List<FlowRuleEntity>, String> flowRuleEntityEncoder() { 
            return JSON::toJSONString;
        }
    
        @Bean
        public Converter<String, List<FlowRuleEntity>> flowRuleEntityDecoder() { 
            return s -> JSON.parseArray(s, FlowRuleEntity.class);
        }
    
        //====================降级规则 Converter
        @Bean
        public Converter<List<DegradeRuleEntity>, String> degradeRuleEntityEncoder() { 
            return JSON::toJSONString;
        }
    
        @Bean
        public Converter<String, List<DegradeRuleEntity>> degradeRuleEntityDecoder() { 
            return s -> JSON.parseArray(s, DegradeRuleEntity.class);
        }
    
        //====================热点规则 Converter
        @Bean
        public Converter<List<ParamFlowRuleEntity>, String> paramsRuleEntityEncoder() { 
            return JSON::toJSONString;
        }
    
        @Bean
        public Converter<String, List<ParamFlowRuleEntity>> paramsRuleEntityDecoder() { 
            return s -> JSON.parseArray(s, ParamFlowRuleEntity.class);
        }
    
        //====================系统规则 Converter
        @Bean
        public Converter<List<SystemRuleEntity>, String> systemRuleEntityEncoder() { 
            return JSON::toJSONString;
        }
    
        @Bean
        public Converter<String, List<SystemRuleEntity>> systemRuleEntityDecoder() { 
            return s -> JSON.parseArray(s, SystemRuleEntity.class);
        }
    
        //====================授权规则 Converter
        @Bean
        public Converter<List<AuthorityRuleEntity>, String> authRuleEntityEncoder() { 
            return JSON::toJSONString;
        }
    
    
        @Bean
        Converter<String, List<AuthorityRuleEntity>> authRuleEntityDecoder() { 
            return s -> JSON.parseArray(s, AuthorityRuleEntity.class);
        }
    
        //====================网关限流规则 Converter
        @Bean
        public Converter<List<GatewayFlowRuleEntity>, String> gatewayFlowRuleEntityEncoder() { 
            return JSON::toJSONString;
        }
    
    
        @Bean
        Converter<String, List<GatewayFlowRuleEntity>> gatewayFlowRuleEntityDecoder() { 
            return s -> JSON.parseArray(s, GatewayFlowRuleEntity.class);
        }
    
        //====================网关API限流规则 Converter
        @Bean
        public Converter<List<ApiDefinitionEntity>, String> gatewayApiRuleEntityEncoder() { 
            return JSON::toJSONString;
        }
    
    
        @Bean
        Converter<String, List<ApiDefinitionEntity>> gatewayApiRuleEntityDecoder() { 
            return s -> JSON.parseArray(s, ApiDefinitionEntity.class);
        }
    
    
        @Bean
        public ConfigService nacosConfigService(NacosPropertiesConfig nacosPropertiesConfig) throws Exception { 
            Properties properties = new Properties();
            properties.put(PropertyKeyConst.SERVER_ADDR, nacosPropertiesConfig.getServerAddr());
            properties.put(PropertyKeyConst.NAMESPACE, nacosPropertiesConfig.getNamespace());
            return ConfigFactory.createConfigService(properties);
        }
    }

##### 四、创建规则与 Nacos 交互类 #####

###### 4.1. 创建授权规则与 Nacos 交互类 ######

在前面创建的auth包下创建以下两个类：  
AuthorityRuleNacosProvider  
①`AuthorityRuleNacosProvider`，内容如下：

package com.alibaba.csp.sentinel.dashboard.rule.nacos.auth;
    
    import com.alibaba.csp.sentinel.dashboard.datasource.entity.rule.AuthorityRuleEntity;
    import com.alibaba.csp.sentinel.dashboard.rule.DynamicRuleProvider;
    import com.alibaba.csp.sentinel.dashboard.rule.nacos.NacosConfigUtil;
    import com.alibaba.csp.sentinel.datasource.Converter;
    import com.alibaba.csp.sentinel.util.StringUtil;
    import com.alibaba.nacos.api.config.ConfigService;
    import org.slf4j.Logger;
    import org.slf4j.LoggerFactory;
    import org.springframework.beans.factory.annotation.Autowired;
    import org.springframework.stereotype.Component;
    
    import java.util.ArrayList;
    import java.util.List;
    
    /**
     * @author gblfy
     * @date 2021-08-05
     */
    @Component("authRuleNacosProvider")
    public class AuthorityRuleNacosProvider implements DynamicRuleProvider<List<AuthorityRuleEntity>> { 
    
        private static final Logger LOGGER = LoggerFactory.getLogger(AuthorityRuleNacosProvider.class);
    
        @Autowired
        private ConfigService configService;
        @Autowired
        private Converter<String, List<AuthorityRuleEntity>> converter;
    
        @Override
        public List<AuthorityRuleEntity> getRules(String appName) throws Exception { 
            String rules = configService.getConfig(appName + NacosConfigUtil.AUTH_DATA_ID_POSTFIX,
                    NacosConfigUtil.GROUP_ID, 3000);
            LOGGER.info("get auth rule from nacos, rules : {}", rules);
            if (StringUtil.isEmpty(rules)) { 
                return new ArrayList<>();
            }
            return converter.convert(rules);
        }
    }

②`AuthorityRuleNacosPublisher`，内容如下：

package com.alibaba.csp.sentinel.dashboard.rule.nacos.auth;
    
    import com.alibaba.csp.sentinel.dashboard.datasource.entity.rule.AuthorityRuleEntity;
    import com.alibaba.csp.sentinel.dashboard.rule.DynamicRulePublisher;
    import com.alibaba.csp.sentinel.dashboard.rule.nacos.NacosConfigUtil;
    import com.alibaba.csp.sentinel.datasource.Converter;
    import com.alibaba.csp.sentinel.util.AssertUtil;
    import com.alibaba.nacos.api.config.ConfigService;
    import org.slf4j.Logger;
    import org.slf4j.LoggerFactory;
    import org.springframework.beans.factory.annotation.Autowired;
    import org.springframework.stereotype.Component;
    
    import java.util.List;
    
    /**
     * @author gblfy
     * @date 2021-08-05
     */
    @Component("authRuleNacosPublisher")
    public class AuthorityRuleNacosPublisher implements DynamicRulePublisher<List<AuthorityRuleEntity>> { 
    
        private static final Logger LOGGER = LoggerFactory.getLogger(AuthorityRuleNacosPublisher.class);
    
        @Autowired
        private ConfigService configService;
    
        @Autowired
        private Converter<List<AuthorityRuleEntity>, String> converter;
    
        @Override
        public void publish(String app, List<AuthorityRuleEntity> rules) throws Exception { 
            AssertUtil.notEmpty(app, "app name cannot be empty");
            if (rules == null) { 
                return;
            }
            String convertedRule = converter.convert(rules);
            LOGGER.info("sentinel dashboard publisher auth rules : {}", convertedRule);
            configService.publishConfig(app + NacosConfigUtil.AUTH_DATA_ID_POSTFIX,
                    NacosConfigUtil.GROUP_ID, convertedRule);
        }
    }

###### 4.2. 创建降级规则与 Nacos 交互类 ######

和前面一样，在前面创建的degrade包下创建以下两个类：  
①DegradeRuleNacosProvider，内容如下：

package com.alibaba.csp.sentinel.dashboard.rule.nacos.degrade;
    
    import com.alibaba.csp.sentinel.dashboard.datasource.entity.rule.DegradeRuleEntity;
    import com.alibaba.csp.sentinel.dashboard.rule.DynamicRuleProvider;
    import com.alibaba.csp.sentinel.dashboard.rule.nacos.NacosConfigUtil;
    import com.alibaba.csp.sentinel.util.StringUtil;
    import com.alibaba.nacos.api.config.ConfigService;
    import org.springframework.beans.factory.annotation.Autowired;
    import org.springframework.stereotype.Component;
    
    import java.util.ArrayList;
    import java.util.List;
    
    import org.slf4j.Logger;
    import org.slf4j.LoggerFactory;
    import com.alibaba.csp.sentinel.datasource.Converter;
    
    /**
     * @author gblfy
     * @date 2021-08-05
     */
    @Component("degradeRuleNacosProvider")
    public class DegradeRuleNacosProvider implements DynamicRuleProvider<List<DegradeRuleEntity>> { 
    
        private static final Logger LOGGER = LoggerFactory.getLogger(DegradeRuleNacosProvider.class);
    
        @Autowired
        private ConfigService configService;
        @Autowired
        private Converter<String, List<DegradeRuleEntity>> converter;
    
        @Override
        public List<DegradeRuleEntity> getRules(String appName) throws Exception { 
            String rules = configService.getConfig(appName + NacosConfigUtil.DEGRADE_DATA_ID_POSTFIX,
                    NacosConfigUtil.GROUP_ID, 3000);
            LOGGER.info("get degrade rules from nacos, rules: {}", rules);
            if (StringUtil.isEmpty(rules)) { 
                return new ArrayList<>();
            }
            return converter.convert(rules);
        }
    }

②DegradeRuleNacosPublisher，内容如下：

package com.alibaba.csp.sentinel.dashboard.rule.nacos.degrade;
    
    import com.alibaba.csp.sentinel.dashboard.datasource.entity.rule.DegradeRuleEntity;
    import com.alibaba.csp.sentinel.dashboard.rule.DynamicRulePublisher;
    import com.alibaba.csp.sentinel.dashboard.rule.nacos.NacosConfigUtil;
    import com.alibaba.csp.sentinel.util.AssertUtil;
    import com.alibaba.nacos.api.config.ConfigService;
    import org.springframework.beans.factory.annotation.Autowired;
    import org.springframework.stereotype.Component;
    
    import java.util.List;
    
    import org.slf4j.Logger;
    import org.slf4j.LoggerFactory;
    import com.alibaba.csp.sentinel.datasource.Converter;
    
    /**
     * @author gblfy
     * @date 2021-08-05
     */
    @Component("degradeRuleNacosPublisher")
    public class DegradeRuleNacosPublisher implements DynamicRulePublisher<List<DegradeRuleEntity>> { 
    
        private static final Logger LOGGER = LoggerFactory.getLogger(DegradeRuleNacosPublisher.class);
    
        @Autowired
        private ConfigService configService;
    
        @Autowired
        private Converter<List<DegradeRuleEntity>, String> converter;
    
        @Override
        public void publish(String app, List<DegradeRuleEntity> rules) throws Exception { 
            AssertUtil.notEmpty(app, "app name cannot be empty");
            if (rules == null) { 
                return;
            }
            String convertedRule = converter.convert(rules);
            LOGGER.info("sentinel dashboard publish degrade rules: {}", convertedRule);
            configService.publishConfig(app + NacosConfigUtil.DEGRADE_DATA_ID_POSTFIX,
                    NacosConfigUtil.GROUP_ID, convertedRule);
        }
    }

###### 4.3. 创建流控规则与 Nacos 交互类 ######

在前面创建的flow包下创建以下两个类：

①`FlowRuleNacosProvider`，内容如下：

package com.alibaba.csp.sentinel.dashboard.rule.nacos.flow;
    
    import com.alibaba.csp.sentinel.dashboard.datasource.entity.rule.FlowRuleEntity;
    import com.alibaba.csp.sentinel.dashboard.rule.DynamicRuleProvider;
    import com.alibaba.csp.sentinel.dashboard.rule.nacos.NacosConfigUtil;
    import com.alibaba.csp.sentinel.datasource.Converter;
    import com.alibaba.csp.sentinel.util.StringUtil;
    import com.alibaba.nacos.api.config.ConfigService;
    import org.slf4j.Logger;
    import org.slf4j.LoggerFactory;
    import org.springframework.beans.factory.annotation.Autowired;
    import org.springframework.stereotype.Component;
    
    import java.util.ArrayList;
    import java.util.List;
    
    /**
     * @author gblfy
     * @date 2021-08-05
     */
    @Component("flowRuleNacosProvider")
    public class FlowRuleNacosProvider implements DynamicRuleProvider<List<FlowRuleEntity>> { 
    
        private static final Logger LOGGER = LoggerFactory.getLogger(FlowRuleNacosProvider.class);
    
        @Autowired
        private ConfigService configService;
        @Autowired
        private Converter<String, List<FlowRuleEntity>> converter;
    
        @Override
        public List<FlowRuleEntity> getRules(String appName) throws Exception { 
            String rules = configService.getConfig(appName + NacosConfigUtil.FLOW_DATA_ID_POSTFIX,
                    NacosConfigUtil.GROUP_ID, 3000);
            LOGGER.info("get flow rules from nacos, rules: {}", rules);
            if (StringUtil.isEmpty(rules)) { 
                return new ArrayList<>();
            }
            return converter.convert(rules);
        }
    }

②`FlowRuleNacosPublisher`，内容如下：

package com.alibaba.csp.sentinel.dashboard.rule.nacos.flow;
    
    import com.alibaba.csp.sentinel.dashboard.datasource.entity.rule.FlowRuleEntity;
    import com.alibaba.csp.sentinel.dashboard.rule.DynamicRulePublisher;
    import com.alibaba.csp.sentinel.dashboard.rule.nacos.NacosConfigUtil;
    import com.alibaba.csp.sentinel.util.AssertUtil;
    import com.alibaba.nacos.api.config.ConfigService;
    import org.springframework.beans.factory.annotation.Autowired;
    import org.springframework.stereotype.Component;
    import org.slf4j.Logger;
    import org.slf4j.LoggerFactory;
    import com.alibaba.csp.sentinel.datasource.Converter;
    
    import java.util.List;
    
    /**
     * @author gblfy
     * @date 2021-08-05
     */
    @Component("flowRuleNacosPublisher")
    public class FlowRuleNacosPublisher implements DynamicRulePublisher<List<FlowRuleEntity>> { 
    
        private static final Logger LOGGER = LoggerFactory.getLogger(FlowRuleNacosPublisher.class);
        @Autowired
        private ConfigService configService;
        @Autowired
        private Converter<List<FlowRuleEntity>, String> converter;
    
        @Override
        public void publish(String app, List<FlowRuleEntity> rules) throws Exception { 
            AssertUtil.notEmpty(app, "app name cannot be empty");
            if (rules == null) { 
                return;
            }
            String convertedRule = converter.convert(rules);
            LOGGER.info("sentinel dashboard publish flow rules: {}", convertedRule);
            configService.publishConfig(app + NacosConfigUtil.FLOW_DATA_ID_POSTFIX,
                    NacosConfigUtil.GROUP_ID, convertedRule);
        }
    }

###### 4.4. 创建网关流控规则与 Nacos 交互类 ######

*  在前面创建的gateway.api包下创建以下两个类：

①`GatewayApiRuleNacosProvider`，内容如下：

package com.alibaba.csp.sentinel.dashboard.rule.nacos.gateway.api;
    
    import com.alibaba.csp.sentinel.dashboard.datasource.entity.gateway.ApiDefinitionEntity;
    import com.alibaba.csp.sentinel.dashboard.rule.DynamicRuleProvider;
    import com.alibaba.csp.sentinel.dashboard.rule.nacos.NacosConfigUtil;
    import com.alibaba.csp.sentinel.util.StringUtil;
    import com.alibaba.nacos.api.config.ConfigService;
    import org.springframework.beans.factory.annotation.Autowired;
    import org.springframework.stereotype.Component;
    
    import java.util.ArrayList;
    import java.util.List;
    
    import org.slf4j.Logger;
    import org.slf4j.LoggerFactory;
    import com.alibaba.csp.sentinel.datasource.Converter;
    
    /**
     * @author gblfy
     * @date 2021-08-05
     */
    @Component("gatewayApiRuleNacosProvider")
    public class GatewayApiRuleNacosProvider implements DynamicRuleProvider<List<ApiDefinitionEntity>> { 
        private static final Logger LOGGER = LoggerFactory.getLogger(GatewayApiRuleNacosProvider.class);
    
        @Autowired
        private ConfigService configService;
        @Autowired
        private Converter<String, List<ApiDefinitionEntity>> converter;
    
        @Override
        public List<ApiDefinitionEntity> getRules(String appName) throws Exception { 
            String rules = configService.getConfig(appName + NacosConfigUtil.GATEWAY_API_DATA_ID_POSTFIX,
                    NacosConfigUtil.GROUP_ID, 3000);
            LOGGER.info("get gateway api rules from nacos, rules: {}", rules);
            if (StringUtil.isEmpty(rules)) { 
                return new ArrayList<>();
            }
            return converter.convert(rules);
        }
    }

②`GatewayApiRuleNacosPublisher`，内容如下：

package com.alibaba.csp.sentinel.dashboard.rule.nacos.gateway.api;
    
    import com.alibaba.csp.sentinel.dashboard.datasource.entity.gateway.ApiDefinitionEntity;
    import com.alibaba.csp.sentinel.dashboard.rule.DynamicRulePublisher;
    import com.alibaba.csp.sentinel.dashboard.rule.nacos.NacosConfigUtil;
    import com.alibaba.csp.sentinel.util.AssertUtil;
    import com.alibaba.nacos.api.config.ConfigService;
    import org.springframework.beans.factory.annotation.Autowired;
    import org.springframework.stereotype.Component;
    
    import java.util.List;
    
    import org.slf4j.Logger;
    import org.slf4j.LoggerFactory;
    import com.alibaba.csp.sentinel.datasource.Converter;
    
    /**
     * @author gblfy
     * @date 2021-08-05
     */
    @Component("gatewayApiRuleNacosPublisher")
    public class GatewayApiRuleNacosPublisher implements DynamicRulePublisher<List<ApiDefinitionEntity>> { 
        private static final Logger LOGGER = LoggerFactory.getLogger(GatewayApiRuleNacosPublisher.class);
    
        @Autowired
        private ConfigService configService;
        @Autowired
        private Converter<List<ApiDefinitionEntity>, String> converter;
    
        @Override
        public void publish(String app, List<ApiDefinitionEntity> rules) throws Exception { 
            AssertUtil.notEmpty(app, "app name cannot be empty");
            if (rules == null) { 
                return;
            }
            String convertedRule = converter.convert(rules);
            LOGGER.info("sentinel dashboard publish gateway api rules: {}", convertedRule);
            configService.publishConfig(app + NacosConfigUtil.GATEWAY_API_DATA_ID_POSTFIX,
                    NacosConfigUtil.GROUP_ID, convertedRule);
        }
    }

*  在gateway.flow包下创建以下两个类：  
    ①GatewayFlowRuleNacosProvider，内容如下：

package com.alibaba.csp.sentinel.dashboard.rule.nacos.gateway.flow;
    
    import com.alibaba.csp.sentinel.dashboard.datasource.entity.gateway.GatewayFlowRuleEntity;
    import com.alibaba.csp.sentinel.dashboard.rule.DynamicRuleProvider;
    import com.alibaba.csp.sentinel.dashboard.rule.nacos.NacosConfigUtil;
    import com.alibaba.csp.sentinel.util.StringUtil;
    import com.alibaba.nacos.api.config.ConfigService;
    import org.springframework.beans.factory.annotation.Autowired;
    import org.springframework.stereotype.Component;
    
    import java.util.ArrayList;
    import java.util.List;
    
    import org.slf4j.Logger;
    import org.slf4j.LoggerFactory;
    import com.alibaba.csp.sentinel.datasource.Converter;
    
    /**
     * @author gblfy
     * @date 2021-08-05
     */
    @Component("gatewayFlowRuleNacosProvider")
    public class GatewayFlowRuleNacosProvider implements DynamicRuleProvider<List<GatewayFlowRuleEntity>> { 
    
        private static final Logger LOGGER = LoggerFactory.getLogger(GatewayFlowRuleNacosProvider.class);
    
        @Autowired
        private ConfigService configService;
        @Autowired
        private Converter<String, List<GatewayFlowRuleEntity>> converter;
    
        @Override
        public List<GatewayFlowRuleEntity> getRules(String appName) throws Exception { 
            String rules = configService.getConfig(appName + NacosConfigUtil.GATEWAY_FLOW_DATA_ID_POSTFIX,
                    NacosConfigUtil.GROUP_ID, 3000);
            LOGGER.info("get gateway flow rules from nacos, rules: {}", rules);
            if (StringUtil.isEmpty(rules)) { 
                return new ArrayList<>();
            }
            return converter.convert(rules);
        }
    }

②GatewayFlowRuleNacosPublisher，内容如下：

package com.alibaba.csp.sentinel.dashboard.rule.nacos.gateway.flow;
    
    import com.alibaba.csp.sentinel.dashboard.datasource.entity.gateway.GatewayFlowRuleEntity;
    import com.alibaba.csp.sentinel.dashboard.rule.DynamicRulePublisher;
    import com.alibaba.csp.sentinel.dashboard.rule.nacos.NacosConfigUtil;
    import com.alibaba.csp.sentinel.util.AssertUtil;
    import com.alibaba.nacos.api.config.ConfigService;
    import org.springframework.beans.factory.annotation.Autowired;
    import org.springframework.stereotype.Component;
    
    import java.util.List;
    
    import org.slf4j.Logger;
    import org.slf4j.LoggerFactory;
    import com.alibaba.csp.sentinel.datasource.Converter;
    
    /**
     * @author gblfy
     * @date 2021-08-05
     */
    @Component("gatewayFlowRuleNacosPublisher")
    public class GatewayFlowRuleNacosPublisher implements DynamicRulePublisher<List<GatewayFlowRuleEntity>> { 
        private static final Logger LOGGER = LoggerFactory.getLogger(GatewayFlowRuleNacosPublisher.class);
    
        @Autowired
        private ConfigService configService;
        @Autowired
        private Converter<List<GatewayFlowRuleEntity>, String> converter;
    
        @Override
        public void publish(String app, List<GatewayFlowRuleEntity> rules) throws Exception { 
            AssertUtil.notEmpty(app, "app name cannot be empty");
            if (rules == null) { 
                return;
            }
            String convertedRule = converter.convert(rules);
            LOGGER.info("sentinel dashboard publish gateway flow rules: {}", convertedRule);
            configService.publishConfig(app + NacosConfigUtil.GATEWAY_FLOW_DATA_ID_POSTFIX,
                    NacosConfigUtil.GROUP_ID, convertedRule);
        }
    }

###### 4.5. 创建热点规则与 Nacos 交互类 ######

在前面创建的param包下新建以下两个类：

ParamRuleNacosProvider，内容如下：

package com.alibaba.csp.sentinel.dashboard.rule.nacos.param;
    
    import com.alibaba.csp.sentinel.dashboard.datasource.entity.rule.ParamFlowRuleEntity;
    import com.alibaba.csp.sentinel.dashboard.rule.DynamicRuleProvider;
    import com.alibaba.csp.sentinel.dashboard.rule.nacos.NacosConfigUtil;
    import com.alibaba.csp.sentinel.util.StringUtil;
    import com.alibaba.nacos.api.config.ConfigService;
    import org.springframework.beans.factory.annotation.Autowired;
    import org.springframework.stereotype.Component;
    import org.slf4j.Logger;
    import org.slf4j.LoggerFactory;
    import com.alibaba.csp.sentinel.datasource.Converter;
    
    import java.util.ArrayList;
    import java.util.List;
    
    /**
     * @author gblfy
     * @date 2021-08-05
     */
    @Component("paramRuleNacosProvider")
    public class ParamRuleNacosProvider implements DynamicRuleProvider<List<ParamFlowRuleEntity>> { 
    
        private static final Logger LOGGER = LoggerFactory.getLogger(ParamRuleNacosProvider.class);
    
        @Autowired
        private ConfigService configService;
        @Autowired
        private Converter<String, List<ParamFlowRuleEntity>> converter;
    
        @Override
        public List<ParamFlowRuleEntity> getRules(String appName) throws Exception { 
            String rules = configService.getConfig(appName + NacosConfigUtil.PARAM_FLOW_DATA_ID_POSTFIX,
                    NacosConfigUtil.GROUP_ID, 3000);
            LOGGER.info("get param rules from nacos, rules: {}", rules);
            if (StringUtil.isEmpty(rules)) { 
                return new ArrayList<>();
            }
            return converter.convert(rules);
        }
    }

ParamRuleNacosPublisher，内容如下：

package com.alibaba.csp.sentinel.dashboard.rule.nacos.param;
    
    import com.alibaba.csp.sentinel.dashboard.datasource.entity.rule.ParamFlowRuleEntity;
    import com.alibaba.csp.sentinel.dashboard.rule.DynamicRulePublisher;
    import com.alibaba.csp.sentinel.dashboard.rule.nacos.NacosConfigUtil;
    import com.alibaba.csp.sentinel.util.AssertUtil;
    import com.alibaba.nacos.api.config.ConfigService;
    import org.springframework.beans.factory.annotation.Autowired;
    import org.springframework.stereotype.Component;
    import org.slf4j.Logger;
    import org.slf4j.LoggerFactory;
    import com.alibaba.csp.sentinel.datasource.Converter;
    
    import java.util.List;
    
    /**
     * @author gblfy
     * @date 2021-08-05
     */
    @Component("paramRuleNacosPublisher")
    public class ParamRuleNacosPublisher implements DynamicRulePublisher<List<ParamFlowRuleEntity>> { 
    
        private static final Logger LOGGER = LoggerFactory.getLogger(ParamRuleNacosPublisher.class);
    
        @Autowired
        private ConfigService configService;
        @Autowired
        private Converter<List<ParamFlowRuleEntity>, String> converter;
    
        @Override
        public void publish(String app, List<ParamFlowRuleEntity> rules) throws Exception { 
            AssertUtil.notEmpty(app, "app name cannot be empty");
            if (rules == null) { 
                return;
            }
            String convertedRule = converter.convert(rules);
            LOGGER.info("sentinel dashboard publish param rules: {}", convertedRule);
            configService.publishConfig(app + NacosConfigUtil.PARAM_FLOW_DATA_ID_POSTFIX,
                    NacosConfigUtil.GROUP_ID, convertedRule);
        }
    
    }

###### 4.6. 创建系统规则与 Nacos 交互类 ######

在前面创建的system包下新建以下两个类：

①SystemRuleNacosProvider，内容如下：

package com.alibaba.csp.sentinel.dashboard.rule.nacos.system;
    
    import com.alibaba.csp.sentinel.dashboard.datasource.entity.rule.SystemRuleEntity;
    import com.alibaba.csp.sentinel.dashboard.rule.DynamicRuleProvider;
    import com.alibaba.csp.sentinel.dashboard.rule.nacos.NacosConfigUtil;
    import com.alibaba.csp.sentinel.util.StringUtil;
    import com.alibaba.nacos.api.config.ConfigService;
    import org.springframework.beans.factory.annotation.Autowired;
    import org.springframework.stereotype.Component;
    
    import java.util.ArrayList;
    import java.util.List;
    
    import org.slf4j.Logger;
    import org.slf4j.LoggerFactory;
    import com.alibaba.csp.sentinel.datasource.Converter;
    
    /**
     * @author gblfy
     * @date 2021-08-05
     */
    @Component("systemRuleNacosProvider")
    public class SystemRuleNacosProvider implements DynamicRuleProvider<List<SystemRuleEntity>> { 
    
        private static final Logger LOGGER = LoggerFactory.getLogger(SystemRuleNacosProvider.class);
    
        @Autowired
        private ConfigService configService;
        @Autowired
        private Converter<String, List<SystemRuleEntity>> converter;
    
        @Override
        public List<SystemRuleEntity> getRules(String appName) throws Exception { 
            String rules = configService.getConfig(appName + NacosConfigUtil.SYS_DATA_ID_POSTFIX,
                    NacosConfigUtil.GROUP_ID, 3000);
            LOGGER.info("get system rules from nacos, rules: {}", rules);
            if (StringUtil.isEmpty(rules)) { 
                return new ArrayList<>();
            }
            return converter.convert(rules);
        }
    }

②SystemRuleNacosPublisher，内容如下：

package com.alibaba.csp.sentinel.dashboard.rule.nacos.system;
    
    import com.alibaba.csp.sentinel.dashboard.datasource.entity.rule.SystemRuleEntity;
    import com.alibaba.csp.sentinel.dashboard.rule.DynamicRulePublisher;
    import com.alibaba.csp.sentinel.dashboard.rule.nacos.NacosConfigUtil;
    import com.alibaba.csp.sentinel.util.AssertUtil;
    import com.alibaba.nacos.api.config.ConfigService;
    import org.springframework.beans.factory.annotation.Autowired;
    import org.springframework.stereotype.Component;
    import org.slf4j.Logger;
    import org.slf4j.LoggerFactory;
    import com.alibaba.csp.sentinel.datasource.Converter;
    
    import java.util.List;
    
    /**
     * @author gblfy
     * @date 2021-08-05
     */
    @Component("systemRuleNacosPublisher")
    public class SystemRuleNacosPublisher implements DynamicRulePublisher<List<SystemRuleEntity>> { 
    
        private static final Logger LOGGER = LoggerFactory.getLogger(SystemRuleNacosPublisher.class);
    
        @Autowired
        private ConfigService configService;
        @Autowired
        private Converter<List<SystemRuleEntity>, String> converter;
    
        @Override
        public void publish(String app, List<SystemRuleEntity> rules) throws Exception { 
            AssertUtil.notEmpty(app, "app name cannot be empty");
            if (rules == null) { 
                return;
            }
            String convertedRule = converter.convert(rules);
            LOGGER.info("sentinel dashboard publisher system rule : {}", convertedRule);
            configService.publishConfig(app + NacosConfigUtil.SYS_DATA_ID_POSTFIX,
                    NacosConfigUtil.GROUP_ID, convertedRule);
        }
    }

##### 五、控制层修改 #####

修改 Controller

###### 5.1. AuthorityRuleController ######

修改 `com.alibaba.csp.sentinel.dashboard.controller包下的AuthorityRuleController`，内容如下：

package com.alibaba.csp.sentinel.dashboard.controller;
    
    import java.util.Date;
    import java.util.List;
    
    import com.alibaba.csp.sentinel.dashboard.auth.AuthAction;
    import com.alibaba.csp.sentinel.dashboard.client.SentinelApiClient;
    import com.alibaba.csp.sentinel.dashboard.discovery.MachineInfo;
    import com.alibaba.csp.sentinel.dashboard.auth.AuthService.PrivilegeType;
    import com.alibaba.csp.sentinel.dashboard.rule.DynamicRuleProvider;
    import com.alibaba.csp.sentinel.dashboard.rule.DynamicRulePublisher;
    import com.alibaba.csp.sentinel.slots.block.RuleConstant;
    import com.alibaba.csp.sentinel.util.StringUtil;
    
    import com.alibaba.csp.sentinel.dashboard.datasource.entity.rule.AuthorityRuleEntity;
    import com.alibaba.csp.sentinel.dashboard.domain.Result;
    import com.alibaba.csp.sentinel.dashboard.repository.rule.RuleRepository;
    
    import org.slf4j.Logger;
    import org.slf4j.LoggerFactory;
    import org.springframework.beans.factory.annotation.Autowired;
    import org.springframework.beans.factory.annotation.Qualifier;
    import org.springframework.web.bind.annotation.DeleteMapping;
    import org.springframework.web.bind.annotation.GetMapping;
    import org.springframework.web.bind.annotation.PathVariable;
    import org.springframework.web.bind.annotation.PostMapping;
    import org.springframework.web.bind.annotation.PutMapping;
    import org.springframework.web.bind.annotation.RequestBody;
    import org.springframework.web.bind.annotation.RequestMapping;
    import org.springframework.web.bind.annotation.RequestParam;
    import org.springframework.web.bind.annotation.RestController;
    
    /**
     * @author Eric Zhao
     * @since 0.2.1
     */
    @RestController
    @RequestMapping(value = "/authority")
    public class AuthorityRuleController { 
    
        private final Logger logger = LoggerFactory.getLogger(AuthorityRuleController.class);
    
        @Autowired
        private SentinelApiClient sentinelApiClient;
        @Autowired
        private RuleRepository<AuthorityRuleEntity, Long> repository;
    
        @Autowired
        @Qualifier("authRuleNacosProvider")
        private DynamicRuleProvider<List<AuthorityRuleEntity>> ruleProvider;
        @Autowired
        @Qualifier("authRuleNacosPublisher")
        private DynamicRulePublisher<List<AuthorityRuleEntity>> rulePublisher;
    
        @GetMapping("/rules")
        @AuthAction(PrivilegeType.READ_RULE)
        public Result<List<AuthorityRuleEntity>> apiQueryAllRulesForMachine(@RequestParam String app,
                                                                            @RequestParam String ip,
                                                                            @RequestParam Integer port) { 
            if (StringUtil.isEmpty(app)) { 
                return Result.ofFail(-1, "app cannot be null or empty");
            }
            if (StringUtil.isEmpty(ip)) { 
                return Result.ofFail(-1, "ip cannot be null or empty");
            }
            if (port == null || port <= 0) { 
                return Result.ofFail(-1, "Invalid parameter: port");
            }
            try { 
    //            List<AuthorityRuleEntity> rules = sentinelApiClient.fetchAuthorityRulesOfMachine(app, ip, port);
                List<AuthorityRuleEntity> rules = ruleProvider.getRules(app);
                repository.saveAll(rules);
                return Result.ofSuccess(rules);
            } catch (Throwable throwable) { 
                logger.error("Error when querying authority rules", throwable);
                return Result.ofFail(-1, throwable.getMessage());
            }
        }
    
        private <R> Result<R> checkEntityInternal(AuthorityRuleEntity entity) { 
            if (entity == null) { 
                return Result.ofFail(-1, "bad rule body");
            }
            if (StringUtil.isBlank(entity.getApp())) { 
                return Result.ofFail(-1, "app can't be null or empty");
            }
            if (StringUtil.isBlank(entity.getIp())) { 
                return Result.ofFail(-1, "ip can't be null or empty");
            }
            if (entity.getPort() == null || entity.getPort() <= 0) { 
                return Result.ofFail(-1, "port can't be null");
            }
            if (entity.getRule() == null) { 
                return Result.ofFail(-1, "rule can't be null");
            }
            if (StringUtil.isBlank(entity.getResource())) { 
                return Result.ofFail(-1, "resource name cannot be null or empty");
            }
            if (StringUtil.isBlank(entity.getLimitApp())) { 
                return Result.ofFail(-1, "limitApp should be valid");
            }
            if (entity.getStrategy() != RuleConstant.AUTHORITY_WHITE
                    && entity.getStrategy() != RuleConstant.AUTHORITY_BLACK) { 
                return Result.ofFail(-1, "Unknown strategy (must be blacklist or whitelist)");
            }
            return null;
        }
    
        @PostMapping("/rule")
        @AuthAction(PrivilegeType.WRITE_RULE)
        public Result<AuthorityRuleEntity> apiAddAuthorityRule(@RequestBody AuthorityRuleEntity entity) { 
            Result<AuthorityRuleEntity> checkResult = checkEntityInternal(entity);
            if (checkResult != null) { 
                return checkResult;
            }
            entity.setId(null);
            Date date = new Date();
            entity.setGmtCreate(date);
            entity.setGmtModified(date);
            try { 
                entity = repository.save(entity);
            } catch (Throwable throwable) { 
                logger.error("Failed to add authority rule", throwable);
                return Result.ofThrowable(-1, throwable);
            }
            if (!publishRules(entity.getApp(), entity.getIp(), entity.getPort())) { 
                logger.info("Publish authority rules failed after rule add");
            }
            return Result.ofSuccess(entity);
        }
    
        @PutMapping("/rule/{id}")
        @AuthAction(PrivilegeType.WRITE_RULE)
        public Result<AuthorityRuleEntity> apiUpdateParamFlowRule(@PathVariable("id") Long id,
                                                                  @RequestBody AuthorityRuleEntity entity) { 
            if (id == null || id <= 0) { 
                return Result.ofFail(-1, "Invalid id");
            }
            Result<AuthorityRuleEntity> checkResult = checkEntityInternal(entity);
            if (checkResult != null) { 
                return checkResult;
            }
            entity.setId(id);
            Date date = new Date();
            entity.setGmtCreate(null);
            entity.setGmtModified(date);
            try { 
                entity = repository.save(entity);
                if (entity == null) { 
                    return Result.ofFail(-1, "Failed to save authority rule");
                }
            } catch (Throwable throwable) { 
                logger.error("Failed to save authority rule", throwable);
                return Result.ofThrowable(-1, throwable);
            }
            if (!publishRules(entity.getApp(), entity.getIp(), entity.getPort())) { 
                logger.info("Publish authority rules failed after rule update");
            }
            return Result.ofSuccess(entity);
        }
    
        @DeleteMapping("/rule/{id}")
        @AuthAction(PrivilegeType.DELETE_RULE)
        public Result<Long> apiDeleteRule(@PathVariable("id") Long id) { 
            if (id == null) { 
                return Result.ofFail(-1, "id cannot be null");
            }
            AuthorityRuleEntity oldEntity = repository.findById(id);
            if (oldEntity == null) { 
                return Result.ofSuccess(null);
            }
            try { 
                repository.delete(id);
            } catch (Exception e) { 
                return Result.ofFail(-1, e.getMessage());
            }
            if (!publishRules(oldEntity.getApp(), oldEntity.getIp(), oldEntity.getPort())) { 
                logger.error("Publish authority rules failed after rule delete");
            }
            return Result.ofSuccess(id);
        }
    
        private boolean publishRules(String app, String ip, Integer port) { 
            List<AuthorityRuleEntity> rules = repository.findAllByMachine(MachineInfo.of(app, ip, port));
    //        return sentinelApiClient.setAuthorityRuleOfMachine(app, ip, port, rules);
            try { 
                rulePublisher.publish(app, rules);
                return true;
            } catch (Exception e) { 
                return false;
            }
        }
    }

主要是将SentinelApiClient相关调用改为我们前面创建的一系列NacosProvider和NacosPublisher类中的调用，与 Nacos 交互。

###### 5.2. DegradeController ######

修改 com.alibaba.csp.sentinel.dashboard.controller包下的DegradeController，内容如下：

package com.alibaba.csp.sentinel.dashboard.controller;
    
    import java.util.Date;
    import java.util.List;
    
    import com.alibaba.csp.sentinel.dashboard.auth.AuthAction;
    import com.alibaba.csp.sentinel.dashboard.client.SentinelApiClient;
    import com.alibaba.csp.sentinel.dashboard.discovery.MachineInfo;
    import com.alibaba.csp.sentinel.dashboard.auth.AuthService.PrivilegeType;
    import com.alibaba.csp.sentinel.dashboard.repository.rule.RuleRepository;
    import com.alibaba.csp.sentinel.dashboard.rule.DynamicRuleProvider;
    import com.alibaba.csp.sentinel.dashboard.rule.DynamicRulePublisher;
    import com.alibaba.csp.sentinel.slots.block.RuleConstant;
    import com.alibaba.csp.sentinel.slots.block.degrade.circuitbreaker.CircuitBreakerStrategy;
    import com.alibaba.csp.sentinel.util.StringUtil;
    
    import com.alibaba.csp.sentinel.dashboard.datasource.entity.rule.DegradeRuleEntity;
    import com.alibaba.csp.sentinel.dashboard.domain.Result;
    
    import org.slf4j.Logger;
    import org.slf4j.LoggerFactory;
    import org.springframework.beans.factory.annotation.Autowired;
    import org.springframework.beans.factory.annotation.Qualifier;
    import org.springframework.web.bind.annotation.DeleteMapping;
    import org.springframework.web.bind.annotation.GetMapping;
    import org.springframework.web.bind.annotation.PathVariable;
    import org.springframework.web.bind.annotation.PostMapping;
    import org.springframework.web.bind.annotation.PutMapping;
    import org.springframework.web.bind.annotation.RequestBody;
    import org.springframework.web.bind.annotation.RequestMapping;
    import org.springframework.web.bind.annotation.RestController;
    
    /**
     * Controller regarding APIs of degrade rules. Refactored since 1.8.0.
     *
     * @author Carpenter Lee
     * @author Eric Zhao
     */
    @RestController
    @RequestMapping("/degrade")
    public class DegradeController { 
    
        private final Logger logger = LoggerFactory.getLogger(DegradeController.class);
    
        @Autowired
        private RuleRepository<DegradeRuleEntity, Long> repository;
        @Autowired
        private SentinelApiClient sentinelApiClient;
    
        @Autowired
        @Qualifier("degradeRuleNacosProvider")
        private DynamicRuleProvider<List<DegradeRuleEntity>> ruleProvider;
        @Autowired
        @Qualifier("degradeRuleNacosPublisher")
        private DynamicRulePublisher<List<DegradeRuleEntity>> rulePublisher;
    
        @GetMapping("/rules.json")
        @AuthAction(PrivilegeType.READ_RULE)
        public Result<List<DegradeRuleEntity>> apiQueryMachineRules(String app, String ip, Integer port) { 
            if (StringUtil.isEmpty(app)) { 
                return Result.ofFail(-1, "app can't be null or empty");
            }
            if (StringUtil.isEmpty(ip)) { 
                return Result.ofFail(-1, "ip can't be null or empty");
            }
            if (port == null) { 
                return Result.ofFail(-1, "port can't be null");
            }
            try { 
    //            List<DegradeRuleEntity> rules = sentinelApiClient.fetchDegradeRuleOfMachine(app, ip, port);
                List<DegradeRuleEntity> rules = ruleProvider.getRules(app);
                rules = repository.saveAll(rules);
                return Result.ofSuccess(rules);
            } catch (Throwable throwable) { 
                logger.error("queryApps error:", throwable);
                return Result.ofThrowable(-1, throwable);
            }
        }
    
        @PostMapping("/rule")
        @AuthAction(PrivilegeType.WRITE_RULE)
        public Result<DegradeRuleEntity> apiAddRule(@RequestBody DegradeRuleEntity entity) { 
            Result<DegradeRuleEntity> checkResult = checkEntityInternal(entity);
            if (checkResult != null) { 
                return checkResult;
            }
            Date date = new Date();
            entity.setGmtCreate(date);
            entity.setGmtModified(date);
            try { 
                entity = repository.save(entity);
            } catch (Throwable t) { 
                logger.error("Failed to add new degrade rule, app={}, ip={}", entity.getApp(), entity.getIp(), t);
                return Result.ofThrowable(-1, t);
            }
            if (!publishRules(entity.getApp(), entity.getIp(), entity.getPort())) { 
                logger.warn("Publish degrade rules failed, app={}", entity.getApp());
            }
            return Result.ofSuccess(entity);
        }
    
        @PutMapping("/rule/{id}")
        @AuthAction(PrivilegeType.WRITE_RULE)
        public Result<DegradeRuleEntity> apiUpdateRule(@PathVariable("id") Long id,
                                                       @RequestBody DegradeRuleEntity entity) { 
            if (id == null || id <= 0) { 
                return Result.ofFail(-1, "id can't be null or negative");
            }
            DegradeRuleEntity oldEntity = repository.findById(id);
            if (oldEntity == null) { 
                return Result.ofFail(-1, "Degrade rule does not exist, id=" + id);
            }
            entity.setApp(oldEntity.getApp());
            entity.setIp(oldEntity.getIp());
            entity.setPort(oldEntity.getPort());
            entity.setId(oldEntity.getId());
            Result<DegradeRuleEntity> checkResult = checkEntityInternal(entity);
            if (checkResult != null) { 
                return checkResult;
            }
    
            entity.setGmtCreate(oldEntity.getGmtCreate());
            entity.setGmtModified(new Date());
            try { 
                entity = repository.save(entity);
            } catch (Throwable t) { 
                logger.error("Failed to save degrade rule, id={}, rule={}", id, entity, t);
                return Result.ofThrowable(-1, t);
            }
            if (!publishRules(entity.getApp(), entity.getIp(), entity.getPort())) { 
                logger.warn("Publish degrade rules failed, app={}", entity.getApp());
            }
            return Result.ofSuccess(entity);
        }
    
        @DeleteMapping("/rule/{id}")
        @AuthAction(PrivilegeType.DELETE_RULE)
        public Result<Long> delete(@PathVariable("id") Long id) { 
            if (id == null) { 
                return Result.ofFail(-1, "id can't be null");
            }
    
            DegradeRuleEntity oldEntity = repository.findById(id);
            if (oldEntity == null) { 
                return Result.ofSuccess(null);
            }
    
            try { 
                repository.delete(id);
            } catch (Throwable throwable) { 
                logger.error("Failed to delete degrade rule, id={}", id, throwable);
                return Result.ofThrowable(-1, throwable);
            }
            if (!publishRules(oldEntity.getApp(), oldEntity.getIp(), oldEntity.getPort())) { 
                logger.warn("Publish degrade rules failed, app={}", oldEntity.getApp());
            }
            return Result.ofSuccess(id);
        }
    
        private boolean publishRules(String app, String ip, Integer port) { 
            List<DegradeRuleEntity> rules = repository.findAllByMachine(MachineInfo.of(app, ip, port));
    //        return sentinelApiClient.setDegradeRuleOfMachine(app, ip, port, rules);
            try{ 
                rulePublisher.publish(app, rules);
                return true;
            }catch (Exception e){ 
                return false;
            }
        }
    
        private <R> Result<R> checkEntityInternal(DegradeRuleEntity entity) { 
            if (StringUtil.isBlank(entity.getApp())) { 
                return Result.ofFail(-1, "app can't be blank");
            }
            if (StringUtil.isBlank(entity.getIp())) { 
                return Result.ofFail(-1, "ip can't be null or empty");
            }
            if (entity.getPort() == null || entity.getPort() <= 0) { 
                return Result.ofFail(-1, "invalid port: " + entity.getPort());
            }
            if (StringUtil.isBlank(entity.getLimitApp())) { 
                return Result.ofFail(-1, "limitApp can't be null or empty");
            }
            if (StringUtil.isBlank(entity.getResource())) { 
                return Result.ofFail(-1, "resource can't be null or empty");
            }
            Double threshold = entity.getCount();
            if (threshold == null || threshold < 0) { 
                return Result.ofFail(-1, "invalid threshold: " + threshold);
            }
            Integer recoveryTimeoutSec = entity.getTimeWindow();
            if (recoveryTimeoutSec == null || recoveryTimeoutSec <= 0) { 
                return Result.ofFail(-1, "recoveryTimeout should be positive");
            }
            Integer strategy = entity.getGrade();
            if (strategy == null) { 
                return Result.ofFail(-1, "circuit breaker strategy cannot be null");
            }
            if (strategy < CircuitBreakerStrategy.SLOW_REQUEST_RATIO.getType()
                    || strategy > RuleConstant.DEGRADE_GRADE_EXCEPTION_COUNT) { 
                return Result.ofFail(-1, "Invalid circuit breaker strategy: " + strategy);
            }
            if (entity.getMinRequestAmount()  == null || entity.getMinRequestAmount() <= 0) { 
                return Result.ofFail(-1, "Invalid minRequestAmount");
            }
            if (entity.getStatIntervalMs() == null || entity.getStatIntervalMs() <= 0) { 
                return Result.ofFail(-1, "Invalid statInterval");
            }
            if (strategy == RuleConstant.DEGRADE_GRADE_RT) { 
                Double slowRatio = entity.getSlowRatioThreshold();
                if (slowRatio == null) { 
                    return Result.ofFail(-1, "SlowRatioThreshold is required for slow request ratio strategy");
                } else if (slowRatio < 0 || slowRatio > 1) { 
                    return Result.ofFail(-1, "SlowRatioThreshold should be in range: [0.0, 1.0]");
                }
            } else if (strategy == RuleConstant.DEGRADE_GRADE_EXCEPTION_RATIO) { 
                if (threshold > 1) { 
                    return Result.ofFail(-1, "Ratio threshold should be in range: [0.0, 1.0]");
                }
            }
            return null;
        }
    }

###### 5.3. FlowControllerV2 ######

修改 com.alibaba.csp.sentinel.dashboard.controller.v2包下的FlowControllerV2，内容如下：

package com.alibaba.csp.sentinel.dashboard.controller.v2;
    
    import java.util.Date;
    import java.util.List;
    import java.util.concurrent.TimeUnit;
    
    import com.alibaba.csp.sentinel.dashboard.auth.AuthAction;
    import com.alibaba.csp.sentinel.dashboard.auth.AuthService;
    import com.alibaba.csp.sentinel.dashboard.auth.AuthService.PrivilegeType;
    import com.alibaba.csp.sentinel.util.StringUtil;
    
    import com.alibaba.csp.sentinel.dashboard.datasource.entity.rule.FlowRuleEntity;
    import com.alibaba.csp.sentinel.dashboard.repository.rule.InMemoryRuleRepositoryAdapter;
    import com.alibaba.csp.sentinel.dashboard.rule.DynamicRuleProvider;
    import com.alibaba.csp.sentinel.dashboard.rule.DynamicRulePublisher;
    import com.alibaba.csp.sentinel.dashboard.domain.Result;
    
    import org.slf4j.Logger;
    import org.slf4j.LoggerFactory;
    import org.springframework.beans.factory.annotation.Autowired;
    import org.springframework.beans.factory.annotation.Qualifier;
    import org.springframework.web.bind.annotation.DeleteMapping;
    import org.springframework.web.bind.annotation.GetMapping;
    import org.springframework.web.bind.annotation.PathVariable;
    import org.springframework.web.bind.annotation.PostMapping;
    import org.springframework.web.bind.annotation.PutMapping;
    import org.springframework.web.bind.annotation.RequestBody;
    import org.springframework.web.bind.annotation.RequestMapping;
    import org.springframework.web.bind.annotation.RequestParam;
    import org.springframework.web.bind.annotation.RestController;
    
    /**
     * Flow rule controller (v2).
     *
     * @author Eric Zhao
     * @since 1.4.0
     */
    @RestController
    @RequestMapping(value = "/v2/flow")
    public class FlowControllerV2 { 
    
        private final Logger logger = LoggerFactory.getLogger(FlowControllerV2.class);
    
        @Autowired
        private InMemoryRuleRepositoryAdapter<FlowRuleEntity> repository;
    
        //    @Autowired
    //    @Qualifier("flowRuleDefaultProvider")
    //    private DynamicRuleProvider<List<FlowRuleEntity>> ruleProvider;
    //    @Autowired
    //    @Qualifier("flowRuleDefaultPublisher")
    //    private DynamicRulePublisher<List<FlowRuleEntity>> rulePublisher;
        //===============================注入Nacos Provider和 Publisher
        @Autowired
        @Qualifier("flowRuleNacosProvider")
        private DynamicRuleProvider<List<FlowRuleEntity>> ruleProvider;
        @Autowired
        @Qualifier("flowRuleNacosPublisher")
        private DynamicRulePublisher<List<FlowRuleEntity>> rulePublisher;
    
        @GetMapping("/rules")
        @AuthAction(PrivilegeType.READ_RULE)
        public Result<List<FlowRuleEntity>> apiQueryMachineRules(@RequestParam String app) { 
    
            if (StringUtil.isEmpty(app)) { 
                return Result.ofFail(-1, "app can't be null or empty");
            }
            try { 
                List<FlowRuleEntity> rules = ruleProvider.getRules(app);
                if (rules != null && !rules.isEmpty()) { 
                    for (FlowRuleEntity entity : rules) { 
                        entity.setApp(app);
                        if (entity.getClusterConfig() != null && entity.getClusterConfig().getFlowId() != null) { 
                            entity.setId(entity.getClusterConfig().getFlowId());
                        }
                    }
                }
                rules = repository.saveAll(rules);
                return Result.ofSuccess(rules);
            } catch (Throwable throwable) { 
                logger.error("Error when querying flow rules", throwable);
                return Result.ofThrowable(-1, throwable);
            }
        }
    
        private <R> Result<R> checkEntityInternal(FlowRuleEntity entity) { 
            if (entity == null) { 
                return Result.ofFail(-1, "invalid body");
            }
            if (StringUtil.isBlank(entity.getApp())) { 
                return Result.ofFail(-1, "app can't be null or empty");
            }
            if (StringUtil.isBlank(entity.getLimitApp())) { 
                return Result.ofFail(-1, "limitApp can't be null or empty");
            }
            if (StringUtil.isBlank(entity.getResource())) { 
                return Result.ofFail(-1, "resource can't be null or empty");
            }
            if (entity.getGrade() == null) { 
                return Result.ofFail(-1, "grade can't be null");
            }
            if (entity.getGrade() != 0 && entity.getGrade() != 1) { 
                return Result.ofFail(-1, "grade must be 0 or 1, but " + entity.getGrade() + " got");
            }
            if (entity.getCount() == null || entity.getCount() < 0) { 
                return Result.ofFail(-1, "count should be at lease zero");
            }
            if (entity.getStrategy() == null) { 
                return Result.ofFail(-1, "strategy can't be null");
            }
            if (entity.getStrategy() != 0 && StringUtil.isBlank(entity.getRefResource())) { 
                return Result.ofFail(-1, "refResource can't be null or empty when strategy!=0");
            }
            if (entity.getControlBehavior() == null) { 
                return Result.ofFail(-1, "controlBehavior can't be null");
            }
            int controlBehavior = entity.getControlBehavior();
            if (controlBehavior == 1 && entity.getWarmUpPeriodSec() == null) { 
                return Result.ofFail(-1, "warmUpPeriodSec can't be null when controlBehavior==1");
            }
            if (controlBehavior == 2 && entity.getMaxQueueingTimeMs() == null) { 
                return Result.ofFail(-1, "maxQueueingTimeMs can't be null when controlBehavior==2");
            }
            if (entity.isClusterMode() && entity.getClusterConfig() == null) { 
                return Result.ofFail(-1, "cluster config should be valid");
            }
            return null;
        }
    
        @PostMapping("/rule")
        @AuthAction(value = AuthService.PrivilegeType.WRITE_RULE)
        public Result<FlowRuleEntity> apiAddFlowRule(@RequestBody FlowRuleEntity entity) { 
    
            Result<FlowRuleEntity> checkResult = checkEntityInternal(entity);
            if (checkResult != null) { 
                return checkResult;
            }
            entity.setId(null);
            Date date = new Date();
            entity.setGmtCreate(date);
            entity.setGmtModified(date);
            entity.setLimitApp(entity.getLimitApp().trim());
            entity.setResource(entity.getResource().trim());
            try { 
                entity = repository.save(entity);
                publishRules(entity.getApp());
            } catch (Throwable throwable) { 
                logger.error("Failed to add flow rule", throwable);
                return Result.ofThrowable(-1, throwable);
            }
            return Result.ofSuccess(entity);
        }
    
        @PutMapping("/rule/{id}")
        @AuthAction(AuthService.PrivilegeType.WRITE_RULE)
        public Result<FlowRuleEntity> apiUpdateFlowRule(@PathVariable("id") Long id,
                                                        @RequestBody FlowRuleEntity entity) { 
            if (id == null || id <= 0) { 
                return Result.ofFail(-1, "Invalid id");
            }
            FlowRuleEntity oldEntity = repository.findById(id);
            if (oldEntity == null) { 
                return Result.ofFail(-1, "id " + id + " does not exist");
            }
            if (entity == null) { 
                return Result.ofFail(-1, "invalid body");
            }
    
            entity.setApp(oldEntity.getApp());
            entity.setIp(oldEntity.getIp());
            entity.setPort(oldEntity.getPort());
            Result<FlowRuleEntity> checkResult = checkEntityInternal(entity);
            if (checkResult != null) { 
                return checkResult;
            }
    
            entity.setId(id);
            Date date = new Date();
            entity.setGmtCreate(oldEntity.getGmtCreate());
            entity.setGmtModified(date);
            try { 
                entity = repository.save(entity);
                if (entity == null) { 
                    return Result.ofFail(-1, "save entity fail");
                }
                publishRules(oldEntity.getApp());
            } catch (Throwable throwable) { 
                logger.error("Failed to update flow rule", throwable);
                return Result.ofThrowable(-1, throwable);
            }
            return Result.ofSuccess(entity);
        }
    
        @DeleteMapping("/rule/{id}")
        @AuthAction(PrivilegeType.DELETE_RULE)
        public Result<Long> apiDeleteRule(@PathVariable("id") Long id) { 
            if (id == null || id <= 0) { 
                return Result.ofFail(-1, "Invalid id");
            }
            FlowRuleEntity oldEntity = repository.findById(id);
            if (oldEntity == null) { 
                return Result.ofSuccess(null);
            }
    
            try { 
                repository.delete(id);
                publishRules(oldEntity.getApp());
            } catch (Exception e) { 
                return Result.ofFail(-1, e.getMessage());
            }
            return Result.ofSuccess(id);
        }
    
        private void publishRules(/*@NonNull*/ String app) throws Exception { 
            List<FlowRuleEntity> rules = repository.findAllByApp(app);
            rulePublisher.publish(app, rules);
            //发布后暂定一会，防止立即查询 仍然是旧数据
            TimeUnit.MILLISECONDS.sleep(500);
        }
    }

###### 5.4. GatewayApiController ######

修改 com.alibaba.csp.sentinel.dashboard.controller.gateway包下的GatewayApiController，内容如下：

###### 5.5. GatewayFlowRuleController ######

修改 com.alibaba.csp.sentinel.dashboard.controller.gateway包下的GatewayFlowRuleController，内容如下：

package com.alibaba.csp.sentinel.dashboard.controller.gateway;
    
    
    import com.alibaba.csp.sentinel.dashboard.auth.AuthAction;
    import com.alibaba.csp.sentinel.dashboard.auth.AuthService;
    import com.alibaba.csp.sentinel.dashboard.client.SentinelApiClient;
    import com.alibaba.csp.sentinel.dashboard.datasource.entity.gateway.GatewayFlowRuleEntity;
    import com.alibaba.csp.sentinel.dashboard.datasource.entity.gateway.GatewayParamFlowItemEntity;
    import com.alibaba.csp.sentinel.dashboard.discovery.MachineInfo;
    import com.alibaba.csp.sentinel.dashboard.domain.Result;
    import com.alibaba.csp.sentinel.dashboard.domain.vo.gateway.rule.AddFlowRuleReqVo;
    import com.alibaba.csp.sentinel.dashboard.domain.vo.gateway.rule.GatewayParamFlowItemVo;
    import com.alibaba.csp.sentinel.dashboard.domain.vo.gateway.rule.UpdateFlowRuleReqVo;
    import com.alibaba.csp.sentinel.dashboard.repository.gateway.InMemGatewayFlowRuleStore;
    import com.alibaba.csp.sentinel.dashboard.rule.DynamicRuleProvider;
    import com.alibaba.csp.sentinel.dashboard.rule.DynamicRulePublisher;
    import com.alibaba.csp.sentinel.util.StringUtil;
    import org.slf4j.Logger;
    import org.slf4j.LoggerFactory;
    import org.springframework.beans.factory.annotation.Autowired;
    import org.springframework.beans.factory.annotation.Qualifier;
    import org.springframework.web.bind.annotation.*;
    
    import java.util.Arrays;
    import java.util.Date;
    import java.util.List;
    
    import static com.alibaba.csp.sentinel.slots.block.RuleConstant.*;
    import static com.alibaba.csp.sentinel.adapter.gateway.common.SentinelGatewayConstants.*;
    import static com.alibaba.csp.sentinel.dashboard.datasource.entity.gateway.GatewayFlowRuleEntity.*;
    
    /**
     * Gateway flow rule Controller for manage gateway flow rules.
     *
     * @author cdfive
     * @since 1.7.0
     */
    @RestController
    @RequestMapping(value = "/gateway/flow")
    public class GatewayFlowRuleController { 
    
        private final Logger logger = LoggerFactory.getLogger(GatewayFlowRuleController.class);
    
        @Autowired
        private InMemGatewayFlowRuleStore repository;
    //
    //    @Autowired
    //    private SentinelApiClient sentinelApiClient;
    
        @Autowired
        @Qualifier("gatewayFlowRuleNacosProvider")
        private DynamicRuleProvider<List<GatewayFlowRuleEntity>> provider;
    
        @Autowired
        @Qualifier("gatewayFlowRuleNacosPublisher")
        private DynamicRulePublisher<List<GatewayFlowRuleEntity>> publisher;
    
        @GetMapping("/list.json")
        @AuthAction(AuthService.PrivilegeType.READ_RULE)
        public Result<List<GatewayFlowRuleEntity>> queryFlowRules(String app, String ip, Integer port) { 
    
            if (StringUtil.isEmpty(app)) { 
                return Result.ofFail(-1, "app can't be null or empty");
            }
            if (StringUtil.isEmpty(ip)) { 
                return Result.ofFail(-1, "ip can't be null or empty");
            }
            if (port == null) { 
                return Result.ofFail(-1, "port can't be null");
            }
    
            try { 
    //            List<GatewayFlowRuleEntity> rules = sentinelApiClient.fetchGatewayFlowRules(app, ip, port).get();
                List<GatewayFlowRuleEntity> rules = provider.getRules(app);
                repository.saveAll(rules);
                return Result.ofSuccess(rules);
            } catch (Throwable throwable) { 
                logger.error("query gateway flow rules error:", throwable);
                return Result.ofThrowable(-1, throwable);
            }
        }
    
        @PostMapping("/new.json")
        @AuthAction(AuthService.PrivilegeType.WRITE_RULE)
        public Result<GatewayFlowRuleEntity> addFlowRule(@RequestBody AddFlowRuleReqVo reqVo) { 
    
            String app = reqVo.getApp();
            if (StringUtil.isBlank(app)) { 
                return Result.ofFail(-1, "app can't be null or empty");
            }
    
            GatewayFlowRuleEntity entity = new GatewayFlowRuleEntity();
            entity.setApp(app.trim());
    
            String ip = reqVo.getIp();
            if (StringUtil.isBlank(ip)) { 
                return Result.ofFail(-1, "ip can't be null or empty");
            }
            entity.setIp(ip.trim());
    
            Integer port = reqVo.getPort();
            if (port == null) { 
                return Result.ofFail(-1, "port can't be null");
            }
            entity.setPort(port);
    
            // API类型, Route ID或API分组
            Integer resourceMode = reqVo.getResourceMode();
            if (resourceMode == null) { 
                return Result.ofFail(-1, "resourceMode can't be null");
            }
            if (!Arrays.asList(RESOURCE_MODE_ROUTE_ID, RESOURCE_MODE_CUSTOM_API_NAME).contains(resourceMode)) { 
                return Result.ofFail(-1, "invalid resourceMode: " + resourceMode);
            }
            entity.setResourceMode(resourceMode);
    
            // API名称
            String resource = reqVo.getResource();
            if (StringUtil.isBlank(resource)) { 
                return Result.ofFail(-1, "resource can't be null or empty");
            }
            entity.setResource(resource.trim());
    
            // 针对请求属性
            GatewayParamFlowItemVo paramItem = reqVo.getParamItem();
            if (paramItem != null) { 
                GatewayParamFlowItemEntity itemEntity = new GatewayParamFlowItemEntity();
                entity.setParamItem(itemEntity);
    
                // 参数属性 0-ClientIP 1-Remote Host 2-Header 3-URL参数 4-Cookie
                Integer parseStrategy = paramItem.getParseStrategy();
                if (!Arrays.asList(PARAM_PARSE_STRATEGY_CLIENT_IP, PARAM_PARSE_STRATEGY_HOST, PARAM_PARSE_STRATEGY_HEADER
                        , PARAM_PARSE_STRATEGY_URL_PARAM, PARAM_PARSE_STRATEGY_COOKIE).contains(parseStrategy)) { 
                    return Result.ofFail(-1, "invalid parseStrategy: " + parseStrategy);
                }
                itemEntity.setParseStrategy(paramItem.getParseStrategy());
    
                // 当参数属性为2-Header 3-URL参数 4-Cookie时，参数名称必填
                if (Arrays.asList(PARAM_PARSE_STRATEGY_HEADER, PARAM_PARSE_STRATEGY_URL_PARAM, PARAM_PARSE_STRATEGY_COOKIE).contains(parseStrategy)) { 
                    // 参数名称
                    String fieldName = paramItem.getFieldName();
                    if (StringUtil.isBlank(fieldName)) { 
                        return Result.ofFail(-1, "fieldName can't be null or empty");
                    }
                    itemEntity.setFieldName(paramItem.getFieldName());
                }
    
                String pattern = paramItem.getPattern();
                // 如果匹配串不为空，验证匹配模式
                if (StringUtil.isNotEmpty(pattern)) { 
                    itemEntity.setPattern(pattern);
                    Integer matchStrategy = paramItem.getMatchStrategy();
                    if (!Arrays.asList(PARAM_MATCH_STRATEGY_EXACT, PARAM_MATCH_STRATEGY_CONTAINS, PARAM_MATCH_STRATEGY_REGEX).contains(matchStrategy)) { 
                        return Result.ofFail(-1, "invalid matchStrategy: " + matchStrategy);
                    }
                    itemEntity.setMatchStrategy(matchStrategy);
                }
            }
    
            // 阈值类型 0-线程数 1-QPS
            Integer grade = reqVo.getGrade();
            if (grade == null) { 
                return Result.ofFail(-1, "grade can't be null");
            }
            if (!Arrays.asList(FLOW_GRADE_THREAD, FLOW_GRADE_QPS).contains(grade)) { 
                return Result.ofFail(-1, "invalid grade: " + grade);
            }
            entity.setGrade(grade);
    
            // QPS阈值
            Double count = reqVo.getCount();
            if (count == null) { 
                return Result.ofFail(-1, "count can't be null");
            }
            if (count < 0) { 
                return Result.ofFail(-1, "count should be at lease zero");
            }
            entity.setCount(count);
    
            // 间隔
            Long interval = reqVo.getInterval();
            if (interval == null) { 
                return Result.ofFail(-1, "interval can't be null");
            }
            if (interval <= 0) { 
                return Result.ofFail(-1, "interval should be greater than zero");
            }
            entity.setInterval(interval);
    
            // 间隔单位
            Integer intervalUnit = reqVo.getIntervalUnit();
            if (intervalUnit == null) { 
                return Result.ofFail(-1, "intervalUnit can't be null");
            }
            if (!Arrays.asList(INTERVAL_UNIT_SECOND, INTERVAL_UNIT_MINUTE, INTERVAL_UNIT_HOUR, INTERVAL_UNIT_DAY).contains(intervalUnit)) { 
                return Result.ofFail(-1, "Invalid intervalUnit: " + intervalUnit);
            }
            entity.setIntervalUnit(intervalUnit);
    
            // 流控方式 0-快速失败 2-匀速排队
            Integer controlBehavior = reqVo.getControlBehavior();
            if (controlBehavior == null) { 
                return Result.ofFail(-1, "controlBehavior can't be null");
            }
            if (!Arrays.asList(CONTROL_BEHAVIOR_DEFAULT, CONTROL_BEHAVIOR_RATE_LIMITER).contains(controlBehavior)) { 
                return Result.ofFail(-1, "invalid controlBehavior: " + controlBehavior);
            }
            entity.setControlBehavior(controlBehavior);
    
            if (CONTROL_BEHAVIOR_DEFAULT == controlBehavior) { 
                // 0-快速失败, 则Burst size必填
                Integer burst = reqVo.getBurst();
                if (burst == null) { 
                    return Result.ofFail(-1, "burst can't be null");
                }
                if (burst < 0) { 
                    return Result.ofFail(-1, "invalid burst: " + burst);
                }
                entity.setBurst(burst);
            } else if (CONTROL_BEHAVIOR_RATE_LIMITER == controlBehavior) { 
                // 1-匀速排队, 则超时时间必填
                Integer maxQueueingTimeoutMs = reqVo.getMaxQueueingTimeoutMs();
                if (maxQueueingTimeoutMs == null) { 
                    return Result.ofFail(-1, "maxQueueingTimeoutMs can't be null");
                }
                if (maxQueueingTimeoutMs < 0) { 
                    return Result.ofFail(-1, "invalid maxQueueingTimeoutMs: " + maxQueueingTimeoutMs);
                }
                entity.setMaxQueueingTimeoutMs(maxQueueingTimeoutMs);
            }
    
            Date date = new Date();
            entity.setGmtCreate(date);
            entity.setGmtModified(date);
    
            try { 
                entity = repository.save(entity);
            } catch (Throwable throwable) { 
                logger.error("add gateway flow rule error:", throwable);
                return Result.ofThrowable(-1, throwable);
            }
    
            if (!publishRules(app, ip, port)) { 
                logger.warn("publish gateway flow rules fail after add");
            }
    
            return Result.ofSuccess(entity);
        }
    
        @PostMapping("/save.json")
        @AuthAction(AuthService.PrivilegeType.WRITE_RULE)
        public Result<GatewayFlowRuleEntity> updateFlowRule(@RequestBody UpdateFlowRuleReqVo reqVo) { 
    
            String app = reqVo.getApp();
            if (StringUtil.isBlank(app)) { 
                return Result.ofFail(-1, "app can't be null or empty");
            }
    
            Long id = reqVo.getId();
            if (id == null) { 
                return Result.ofFail(-1, "id can't be null");
            }
    
            GatewayFlowRuleEntity entity = repository.findById(id);
            if (entity == null) { 
                return Result.ofFail(-1, "gateway flow rule does not exist, id=" + id);
            }
    
            // 针对请求属性
            GatewayParamFlowItemVo paramItem = reqVo.getParamItem();
            if (paramItem != null) { 
                GatewayParamFlowItemEntity itemEntity = new GatewayParamFlowItemEntity();
                entity.setParamItem(itemEntity);
    
                // 参数属性 0-ClientIP 1-Remote Host 2-Header 3-URL参数 4-Cookie
                Integer parseStrategy = paramItem.getParseStrategy();
                if (!Arrays.asList(PARAM_PARSE_STRATEGY_CLIENT_IP, PARAM_PARSE_STRATEGY_HOST, PARAM_PARSE_STRATEGY_HEADER
                        , PARAM_PARSE_STRATEGY_URL_PARAM, PARAM_PARSE_STRATEGY_COOKIE).contains(parseStrategy)) { 
                    return Result.ofFail(-1, "invalid parseStrategy: " + parseStrategy);
                }
                itemEntity.setParseStrategy(paramItem.getParseStrategy());
    
                // 当参数属性为2-Header 3-URL参数 4-Cookie时，参数名称必填
                if (Arrays.asList(PARAM_PARSE_STRATEGY_HEADER, PARAM_PARSE_STRATEGY_URL_PARAM, PARAM_PARSE_STRATEGY_COOKIE).contains(parseStrategy)) { 
                    // 参数名称
                    String fieldName = paramItem.getFieldName();
                    if (StringUtil.isBlank(fieldName)) { 
                        return Result.ofFail(-1, "fieldName can't be null or empty");
                    }
                    itemEntity.setFieldName(paramItem.getFieldName());
                }
    
                String pattern = paramItem.getPattern();
                // 如果匹配串不为空，验证匹配模式
                if (StringUtil.isNotEmpty(pattern)) { 
                    itemEntity.setPattern(pattern);
                    Integer matchStrategy = paramItem.getMatchStrategy();
                    if (!Arrays.asList(PARAM_MATCH_STRATEGY_EXACT, PARAM_MATCH_STRATEGY_CONTAINS, PARAM_MATCH_STRATEGY_REGEX).contains(matchStrategy)) { 
                        return Result.ofFail(-1, "invalid matchStrategy: " + matchStrategy);
                    }
                    itemEntity.setMatchStrategy(matchStrategy);
                }
            } else { 
                entity.setParamItem(null);
            }
    
            // 阈值类型 0-线程数 1-QPS
            Integer grade = reqVo.getGrade();
            if (grade == null) { 
                return Result.ofFail(-1, "grade can't be null");
            }
            if (!Arrays.asList(FLOW_GRADE_THREAD, FLOW_GRADE_QPS).contains(grade)) { 
                return Result.ofFail(-1, "invalid grade: " + grade);
            }
            entity.setGrade(grade);
    
            // QPS阈值
            Double count = reqVo.getCount();
            if (count == null) { 
                return Result.ofFail(-1, "count can't be null");
            }
            if (count < 0) { 
                return Result.ofFail(-1, "count should be at lease zero");
            }
            entity.setCount(count);
    
            // 间隔
            Long interval = reqVo.getInterval();
            if (interval == null) { 
                return Result.ofFail(-1, "interval can't be null");
            }
            if (interval <= 0) { 
                return Result.ofFail(-1, "interval should be greater than zero");
            }
            entity.setInterval(interval);
    
            // 间隔单位
            Integer intervalUnit = reqVo.getIntervalUnit();
            if (intervalUnit == null) { 
                return Result.ofFail(-1, "intervalUnit can't be null");
            }
            if (!Arrays.asList(INTERVAL_UNIT_SECOND, INTERVAL_UNIT_MINUTE, INTERVAL_UNIT_HOUR, INTERVAL_UNIT_DAY).contains(intervalUnit)) { 
                return Result.ofFail(-1, "Invalid intervalUnit: " + intervalUnit);
            }
            entity.setIntervalUnit(intervalUnit);
    
            // 流控方式 0-快速失败 2-匀速排队
            Integer controlBehavior = reqVo.getControlBehavior();
            if (controlBehavior == null) { 
                return Result.ofFail(-1, "controlBehavior can't be null");
            }
            if (!Arrays.asList(CONTROL_BEHAVIOR_DEFAULT, CONTROL_BEHAVIOR_RATE_LIMITER).contains(controlBehavior)) { 
                return Result.ofFail(-1, "invalid controlBehavior: " + controlBehavior);
            }
            entity.setControlBehavior(controlBehavior);
    
            if (CONTROL_BEHAVIOR_DEFAULT == controlBehavior) { 
                // 0-快速失败, 则Burst size必填
                Integer burst = reqVo.getBurst();
                if (burst == null) { 
                    return Result.ofFail(-1, "burst can't be null");
                }
                if (burst < 0) { 
                    return Result.ofFail(-1, "invalid burst: " + burst);
                }
                entity.setBurst(burst);
            } else if (CONTROL_BEHAVIOR_RATE_LIMITER == controlBehavior) { 
                // 2-匀速排队, 则超时时间必填
                Integer maxQueueingTimeoutMs = reqVo.getMaxQueueingTimeoutMs();
                if (maxQueueingTimeoutMs == null) { 
                    return Result.ofFail(-1, "maxQueueingTimeoutMs can't be null");
                }
                if (maxQueueingTimeoutMs < 0) { 
                    return Result.ofFail(-1, "invalid maxQueueingTimeoutMs: " + maxQueueingTimeoutMs);
                }
                entity.setMaxQueueingTimeoutMs(maxQueueingTimeoutMs);
            }
    
            Date date = new Date();
            entity.setGmtModified(date);
    
            try { 
                entity = repository.save(entity);
            } catch (Throwable throwable) { 
                logger.error("update gateway flow rule error:", throwable);
                return Result.ofThrowable(-1, throwable);
            }
    
            if (!publishRules(app, entity.getIp(), entity.getPort())) { 
                logger.warn("publish gateway flow rules fail after update");
            }
    
            return Result.ofSuccess(entity);
        }
    
    
        @PostMapping("/delete.json")
        @AuthAction(AuthService.PrivilegeType.DELETE_RULE)
        public Result<Long> deleteFlowRule(Long id) { 
    
            if (id == null) { 
                return Result.ofFail(-1, "id can't be null");
            }
    
            GatewayFlowRuleEntity oldEntity = repository.findById(id);
            if (oldEntity == null) { 
                return Result.ofSuccess(null);
            }
    
            try { 
                repository.delete(id);
            } catch (Throwable throwable) { 
                logger.error("delete gateway flow rule error:", throwable);
                return Result.ofThrowable(-1, throwable);
            }
    
            if (!publishRules(oldEntity.getApp(), oldEntity.getIp(), oldEntity.getPort())) { 
                logger.warn("publish gateway flow rules fail after delete");
            }
    
            return Result.ofSuccess(id);
        }
    
        private boolean publishRules(String app, String ip, Integer port) { 
            List<GatewayFlowRuleEntity> rules = repository.findAllByMachine(MachineInfo.of(app, ip, port));
            try { 
                publisher.publish(app, rules);
                return true;
            } catch (Exception e) { 
                e.printStackTrace();
                return false;
            }
        }
    }

###### 5.6. ParamFlowRuleController ######

修改 com.alibaba.csp.sentinel.dashboard.controller包下的ParamFlowRuleController，内容如下：

package com.alibaba.csp.sentinel.dashboard.controller;
    
    import com.alibaba.csp.sentinel.dashboard.auth.AuthAction;
    import com.alibaba.csp.sentinel.dashboard.auth.AuthService;
    import com.alibaba.csp.sentinel.dashboard.auth.AuthService.PrivilegeType;
    import com.alibaba.csp.sentinel.dashboard.client.CommandNotFoundException;
    import com.alibaba.csp.sentinel.dashboard.datasource.entity.SentinelVersion;
    import com.alibaba.csp.sentinel.dashboard.datasource.entity.rule.ParamFlowRuleEntity;
    import com.alibaba.csp.sentinel.dashboard.discovery.AppManagement;
    import com.alibaba.csp.sentinel.dashboard.discovery.MachineInfo;
    import com.alibaba.csp.sentinel.dashboard.domain.Result;
    import com.alibaba.csp.sentinel.dashboard.repository.rule.RuleRepository;
    import com.alibaba.csp.sentinel.dashboard.rule.DynamicRuleProvider;
    import com.alibaba.csp.sentinel.dashboard.rule.DynamicRulePublisher;
    import com.alibaba.csp.sentinel.dashboard.util.VersionUtils;
    import com.alibaba.csp.sentinel.slots.block.RuleConstant;
    import com.alibaba.csp.sentinel.util.StringUtil;
    import org.slf4j.Logger;
    import org.slf4j.LoggerFactory;
    import org.springframework.beans.factory.annotation.Autowired;
    import org.springframework.beans.factory.annotation.Qualifier;
    import org.springframework.web.bind.annotation.*;
    
    import java.util.Date;
    import java.util.List;
    import java.util.Optional;
    import java.util.concurrent.ExecutionException;
    
    /**
     * @author Eric Zhao
     * @since 0.2.1
     */
    @RestController
    @RequestMapping(value = "/paramFlow")
    public class ParamFlowRuleController { 
    
        private final Logger logger = LoggerFactory.getLogger(ParamFlowRuleController.class);
    
    //    @Autowired
    //    private SentinelApiClient sentinelApiClient;
        @Autowired
        private AppManagement appManagement;
        @Autowired
        private RuleRepository<ParamFlowRuleEntity, Long> repository;
    
        @Autowired
        @Qualifier("paramRuleNacosProvider")
        private DynamicRuleProvider<List<ParamFlowRuleEntity>> ruleProvider;
        @Autowired
        @Qualifier("paramRuleNacosPublisher")
        private DynamicRulePublisher<List<ParamFlowRuleEntity>> rulePublisher;
    
        private boolean checkIfSupported(String app, String ip, int port) { 
            try { 
                return Optional.ofNullable(appManagement.getDetailApp(app))
                        .flatMap(e -> e.getMachine(ip, port))
                        .flatMap(m -> VersionUtils.parseVersion(m.getVersion())
                                .map(v -> v.greaterOrEqual(version020)))
                        .orElse(true);
                // If error occurred or cannot retrieve machine info, return true.
            } catch (Exception ex) { 
                return true;
            }
        }
    
        @GetMapping("/rules")
        @AuthAction(PrivilegeType.READ_RULE)
        public Result<List<ParamFlowRuleEntity>> apiQueryAllRulesForMachine(@RequestParam String app,
                                                                            @RequestParam String ip,
                                                                            @RequestParam Integer port) { 
            if (StringUtil.isEmpty(app)) { 
                return Result.ofFail(-1, "app cannot be null or empty");
            }
            if (StringUtil.isEmpty(ip)) { 
                return Result.ofFail(-1, "ip cannot be null or empty");
            }
            if (port == null || port <= 0) { 
                return Result.ofFail(-1, "Invalid parameter: port");
            }
            if (!checkIfSupported(app, ip, port)) { 
                return unsupportedVersion();
            }
            try { 
    //            return sentinelApiClient.fetchParamFlowRulesOfMachine(app, ip, port)
    //                .thenApply(repository::saveAll)
    //                .thenApply(Result::ofSuccess)
    //                .get();
                List<ParamFlowRuleEntity> rules = ruleProvider.getRules(app);
                repository.saveAll(rules);
                return Result.ofSuccess(rules);
            } catch (ExecutionException ex) { 
                logger.error("Error when querying parameter flow rules", ex.getCause());
                if (isNotSupported(ex.getCause())) { 
                    return unsupportedVersion();
                } else { 
                    return Result.ofThrowable(-1, ex.getCause());
                }
            } catch (Throwable throwable) { 
                logger.error("Error when querying parameter flow rules", throwable);
                return Result.ofFail(-1, throwable.getMessage());
            }
        }
    
        private boolean isNotSupported(Throwable ex) { 
            return ex instanceof CommandNotFoundException;
        }
    
        @PostMapping("/rule")
        @AuthAction(AuthService.PrivilegeType.WRITE_RULE)
        public Result<ParamFlowRuleEntity> apiAddParamFlowRule(@RequestBody ParamFlowRuleEntity entity) { 
            Result<ParamFlowRuleEntity> checkResult = checkEntityInternal(entity);
            if (checkResult != null) { 
                return checkResult;
            }
            if (!checkIfSupported(entity.getApp(), entity.getIp(), entity.getPort())) { 
                return unsupportedVersion();
            }
            entity.setId(null);
            entity.getRule().setResource(entity.getResource().trim());
            Date date = new Date();
            entity.setGmtCreate(date);
            entity.setGmtModified(date);
            try { 
                entity = repository.save(entity);
                publishRules(entity.getApp(), entity.getIp(), entity.getPort());
                return Result.ofSuccess(entity);
            } catch (ExecutionException ex) { 
                logger.error("Error when adding new parameter flow rules", ex.getCause());
                if (isNotSupported(ex.getCause())) { 
                    return unsupportedVersion();
                } else { 
                    return Result.ofThrowable(-1, ex.getCause());
                }
            } catch (Throwable throwable) { 
                logger.error("Error when adding new parameter flow rules", throwable);
                return Result.ofFail(-1, throwable.getMessage());
            }
        }
    
        private <R> Result<R> checkEntityInternal(ParamFlowRuleEntity entity) { 
            if (entity == null) { 
                return Result.ofFail(-1, "bad rule body");
            }
            if (StringUtil.isBlank(entity.getApp())) { 
                return Result.ofFail(-1, "app can't be null or empty");
            }
            if (StringUtil.isBlank(entity.getIp())) { 
                return Result.ofFail(-1, "ip can't be null or empty");
            }
            if (entity.getPort() == null || entity.getPort() <= 0) { 
                return Result.ofFail(-1, "port can't be null");
            }
            if (entity.getRule() == null) { 
                return Result.ofFail(-1, "rule can't be null");
            }
            if (StringUtil.isBlank(entity.getResource())) { 
                return Result.ofFail(-1, "resource name cannot be null or empty");
            }
            if (entity.getCount() < 0) { 
                return Result.ofFail(-1, "count should be valid");
            }
            if (entity.getGrade() != RuleConstant.FLOW_GRADE_QPS) { 
                return Result.ofFail(-1, "Unknown mode (blockGrade) for parameter flow control");
            }
            if (entity.getParamIdx() == null || entity.getParamIdx() < 0) { 
                return Result.ofFail(-1, "paramIdx should be valid");
            }
            if (entity.getDurationInSec() <= 0) { 
                return Result.ofFail(-1, "durationInSec should be valid");
            }
            if (entity.getControlBehavior() < 0) { 
                return Result.ofFail(-1, "controlBehavior should be valid");
            }
            return null;
        }
    
        @PutMapping("/rule/{id}")
        @AuthAction(AuthService.PrivilegeType.WRITE_RULE)
        public Result<ParamFlowRuleEntity> apiUpdateParamFlowRule(@PathVariable("id") Long id,
                                                                  @RequestBody ParamFlowRuleEntity entity) { 
            if (id == null || id <= 0) { 
                return Result.ofFail(-1, "Invalid id");
            }
            ParamFlowRuleEntity oldEntity = repository.findById(id);
            if (oldEntity == null) { 
                return Result.ofFail(-1, "id " + id + " does not exist");
            }
    
            Result<ParamFlowRuleEntity> checkResult = checkEntityInternal(entity);
            if (checkResult != null) { 
                return checkResult;
            }
            if (!checkIfSupported(entity.getApp(), entity.getIp(), entity.getPort())) { 
                return unsupportedVersion();
            }
            entity.setId(id);
            Date date = new Date();
            entity.setGmtCreate(oldEntity.getGmtCreate());
            entity.setGmtModified(date);
            try { 
                entity = repository.save(entity);
                publishRules(entity.getApp(), entity.getIp(), entity.getPort());
                return Result.ofSuccess(entity);
            } catch (ExecutionException ex) { 
                logger.error("Error when updating parameter flow rules, id=" + id, ex.getCause());
                if (isNotSupported(ex.getCause())) { 
                    return unsupportedVersion();
                } else { 
                    return Result.ofThrowable(-1, ex.getCause());
                }
            } catch (Throwable throwable) { 
                logger.error("Error when updating parameter flow rules, id=" + id, throwable);
                return Result.ofFail(-1, throwable.getMessage());
            }
        }
    
        @DeleteMapping("/rule/{id}")
        @AuthAction(PrivilegeType.DELETE_RULE)
        public Result<Long> apiDeleteRule(@PathVariable("id") Long id) { 
            if (id == null) { 
                return Result.ofFail(-1, "id cannot be null");
            }
            ParamFlowRuleEntity oldEntity = repository.findById(id);
            if (oldEntity == null) { 
                return Result.ofSuccess(null);
            }
    
            try { 
                repository.delete(id);
                publishRules(oldEntity.getApp(), oldEntity.getIp(), oldEntity.getPort());
                return Result.ofSuccess(id);
            } catch (ExecutionException ex) { 
                logger.error("Error when deleting parameter flow rules", ex.getCause());
                if (isNotSupported(ex.getCause())) { 
                    return unsupportedVersion();
                } else { 
                    return Result.ofThrowable(-1, ex.getCause());
                }
            } catch (Throwable throwable) { 
                logger.error("Error when deleting parameter flow rules", throwable);
                return Result.ofFail(-1, throwable.getMessage());
            }
        }
    
        private void publishRules(String app, String ip, Integer port) throws Exception { 
            List<ParamFlowRuleEntity> rules = repository.findAllByMachine(MachineInfo.of(app, ip, port));
    //        return sentinelApiClient.setParamFlowRuleOfMachine(app, ip, port, rules);
            rulePublisher.publish(app, rules);
        }
    
        private <R> Result<R> unsupportedVersion() { 
            return Result.ofFail(4041,
                    "Sentinel client not supported for parameter flow control (unsupported version or dependency absent)");
        }
    
        private final SentinelVersion version020 = new SentinelVersion().setMinorVersion(2);
    }

###### 5.7. SystemController ######

修改 com.alibaba.csp.sentinel.dashboard.controller包下的SystemController，内容如下：

package com.alibaba.csp.sentinel.dashboard.controller;
    
    import java.util.Date;
    import java.util.List;
    
    import com.alibaba.csp.sentinel.dashboard.auth.AuthAction;
    import com.alibaba.csp.sentinel.dashboard.auth.AuthService.PrivilegeType;
    import com.alibaba.csp.sentinel.dashboard.repository.rule.RuleRepository;
    import com.alibaba.csp.sentinel.dashboard.rule.DynamicRuleProvider;
    import com.alibaba.csp.sentinel.dashboard.rule.DynamicRulePublisher;
    import com.alibaba.csp.sentinel.util.StringUtil;
    
    import com.alibaba.csp.sentinel.dashboard.datasource.entity.rule.SystemRuleEntity;
    import com.alibaba.csp.sentinel.dashboard.discovery.MachineInfo;
    import com.alibaba.csp.sentinel.dashboard.client.SentinelApiClient;
    import com.alibaba.csp.sentinel.dashboard.domain.Result;
    
    import org.slf4j.Logger;
    import org.slf4j.LoggerFactory;
    import org.springframework.beans.factory.annotation.Autowired;
    import org.springframework.beans.factory.annotation.Qualifier;
    import org.springframework.web.bind.annotation.GetMapping;
    import org.springframework.web.bind.annotation.RequestMapping;
    import org.springframework.web.bind.annotation.RestController;
    
    /**
     * @author leyou(lihao)
     */
    @RestController
    @RequestMapping("/system")
    public class SystemController { 
    
        private final Logger logger = LoggerFactory.getLogger(SystemController.class);
    
        @Autowired
        private RuleRepository<SystemRuleEntity, Long> repository;
        @Autowired
        private SentinelApiClient sentinelApiClient;
    
        @Autowired
        @Qualifier("systemRuleNacosProvider")
        private DynamicRuleProvider<List<SystemRuleEntity>> ruleProvider;
        @Autowired
        @Qualifier("systemRuleNacosPublisher")
        private DynamicRulePublisher<List<SystemRuleEntity>> rulePublisher;
    
        private <R> Result<R> checkBasicParams(String app, String ip, Integer port) { 
            if (StringUtil.isEmpty(app)) { 
                return Result.ofFail(-1, "app can't be null or empty");
            }
            if (StringUtil.isEmpty(ip)) { 
                return Result.ofFail(-1, "ip can't be null or empty");
            }
            if (port == null) { 
                return Result.ofFail(-1, "port can't be null");
            }
            if (port <= 0 || port > 65535) { 
                return Result.ofFail(-1, "port should be in (0, 65535)");
            }
            return null;
        }
    
        @GetMapping("/rules.json")
        @AuthAction(PrivilegeType.READ_RULE)
        public Result<List<SystemRuleEntity>> apiQueryMachineRules(String app, String ip,
                                                                   Integer port) { 
            Result<List<SystemRuleEntity>> checkResult = checkBasicParams(app, ip, port);
            if (checkResult != null) { 
                return checkResult;
            }
            try { 
    //            List<SystemRuleEntity> rules = sentinelApiClient.fetchSystemRuleOfMachine(app, ip, port);
                List<SystemRuleEntity> rules = ruleProvider.getRules(app);
                rules = repository.saveAll(rules);
                return Result.ofSuccess(rules);
            } catch (Throwable throwable) { 
                logger.error("Query machine system rules error", throwable);
                return Result.ofThrowable(-1, throwable);
            }
        }
    
        private int countNotNullAndNotNegative(Number... values) { 
            int notNullCount = 0;
            for (int i = 0; i < values.length; i++) { 
                if (values[i] != null && values[i].doubleValue() >= 0) { 
                    notNullCount++;
                }
            }
            return notNullCount;
        }
    
        @RequestMapping("/new.json")
        @AuthAction(PrivilegeType.WRITE_RULE)
        public Result<SystemRuleEntity> apiAdd(String app, String ip, Integer port,
                                               Double highestSystemLoad, Double highestCpuUsage, Long avgRt,
                                               Long maxThread, Double qps) { 
    
            Result<SystemRuleEntity> checkResult = checkBasicParams(app, ip, port);
            if (checkResult != null) { 
                return checkResult;
            }
    
            int notNullCount = countNotNullAndNotNegative(highestSystemLoad, avgRt, maxThread, qps, highestCpuUsage);
            if (notNullCount != 1) { 
                return Result.ofFail(-1, "only one of [highestSystemLoad, avgRt, maxThread, qps,highestCpuUsage] "
                        + "value must be set > 0, but " + notNullCount + " values get");
            }
            if (null != highestCpuUsage && highestCpuUsage > 1) { 
                return Result.ofFail(-1, "highestCpuUsage must between [0.0, 1.0]");
            }
            SystemRuleEntity entity = new SystemRuleEntity();
            entity.setApp(app.trim());
            entity.setIp(ip.trim());
            entity.setPort(port);
            // -1 is a fake value
            if (null != highestSystemLoad) { 
                entity.setHighestSystemLoad(highestSystemLoad);
            } else { 
                entity.setHighestSystemLoad(-1D);
            }
    
            if (null != highestCpuUsage) { 
                entity.setHighestCpuUsage(highestCpuUsage);
            } else { 
                entity.setHighestCpuUsage(-1D);
            }
    
            if (avgRt != null) { 
                entity.setAvgRt(avgRt);
            } else { 
                entity.setAvgRt(-1L);
            }
            if (maxThread != null) { 
                entity.setMaxThread(maxThread);
            } else { 
                entity.setMaxThread(-1L);
            }
            if (qps != null) { 
                entity.setQps(qps);
            } else { 
                entity.setQps(-1D);
            }
            Date date = new Date();
            entity.setGmtCreate(date);
            entity.setGmtModified(date);
            try { 
                entity = repository.save(entity);
            } catch (Throwable throwable) { 
                logger.error("Add SystemRule error", throwable);
                return Result.ofThrowable(-1, throwable);
            }
            if (!publishRules(app, ip, port)) { 
                logger.warn("Publish system rules fail after rule add");
            }
            return Result.ofSuccess(entity);
        }
    
        @GetMapping("/save.json")
        @AuthAction(PrivilegeType.WRITE_RULE)
        public Result<SystemRuleEntity> apiUpdateIfNotNull(Long id, String app, Double highestSystemLoad,
                                                           Double highestCpuUsage, Long avgRt, Long maxThread, Double qps) { 
            if (id == null) { 
                return Result.ofFail(-1, "id can't be null");
            }
            SystemRuleEntity entity = repository.findById(id);
            if (entity == null) { 
                return Result.ofFail(-1, "id " + id + " dose not exist");
            }
    
            if (StringUtil.isNotBlank(app)) { 
                entity.setApp(app.trim());
            }
            if (highestSystemLoad != null) { 
                if (highestSystemLoad < 0) { 
                    return Result.ofFail(-1, "highestSystemLoad must >= 0");
                }
                entity.setHighestSystemLoad(highestSystemLoad);
            }
            if (highestCpuUsage != null) { 
                if (highestCpuUsage < 0) { 
                    return Result.ofFail(-1, "highestCpuUsage must >= 0");
                }
                if (highestCpuUsage > 1) { 
                    return Result.ofFail(-1, "highestCpuUsage must <= 1");
                }
                entity.setHighestCpuUsage(highestCpuUsage);
            }
            if (avgRt != null) { 
                if (avgRt < 0) { 
                    return Result.ofFail(-1, "avgRt must >= 0");
                }
                entity.setAvgRt(avgRt);
            }
            if (maxThread != null) { 
                if (maxThread < 0) { 
                    return Result.ofFail(-1, "maxThread must >= 0");
                }
                entity.setMaxThread(maxThread);
            }
            if (qps != null) { 
                if (qps < 0) { 
                    return Result.ofFail(-1, "qps must >= 0");
                }
                entity.setQps(qps);
            }
            Date date = new Date();
            entity.setGmtModified(date);
            try { 
                entity = repository.save(entity);
            } catch (Throwable throwable) { 
                logger.error("save error:", throwable);
                return Result.ofThrowable(-1, throwable);
            }
            if (!publishRules(entity.getApp(), entity.getIp(), entity.getPort())) { 
                logger.info("publish system rules fail after rule update");
            }
            return Result.ofSuccess(entity);
        }
    
        @RequestMapping("/delete.json")
        @AuthAction(PrivilegeType.DELETE_RULE)
        public Result<?> delete(Long id) { 
            if (id == null) { 
                return Result.ofFail(-1, "id can't be null");
            }
            SystemRuleEntity oldEntity = repository.findById(id);
            if (oldEntity == null) { 
                return Result.ofSuccess(null);
            }
            try { 
                repository.delete(id);
            } catch (Throwable throwable) { 
                logger.error("delete error:", throwable);
                return Result.ofThrowable(-1, throwable);
            }
            if (!publishRules(oldEntity.getApp(), oldEntity.getIp(), oldEntity.getPort())) { 
                logger.info("publish system rules fail after rule delete");
            }
            return Result.ofSuccess(id);
        }
    
        private boolean publishRules(String app, String ip, Integer port) { 
            List<SystemRuleEntity> rules = repository.findAllByMachine(MachineInfo.of(app, ip, port));
    //        return sentinelApiClient.setSystemRuleOfMachine(app, ip, port, rules);
            try { 
                rulePublisher.publish(app, rules);
                return true;
            } catch (Exception e) { 
                return false;
            }
        }
    }

##### 六、前端代码调整 #####

###### 6.1. sidebar.html ######

修改前端代码  
找到webapp/resources/app/scripts/directives/sidebar/sidebar.html文件，找到以下代码：

修改为：

<li ui-sref-active="active" ng-if="!entry.isGateway">
        <a ui-sref="dashboard.flow({app: entry.app})">
            <i class="glyphicon glyphicon-filter"></i>  流控规则</a>
    </li>

###### 6.2. flow\_service\_v1.js ######

找到webapp/resources/app/scripts/services/flow\_service\_v1.js文件，找到以下代码：

this.newRule = function (rule) { 
        var param = { 
            resource: rule.resource,
            limitApp: rule.limitApp,
            grade: rule.grade,
            count: rule.count,
            strategy: rule.strategy,
            refResource: rule.refResource,
            controlBehavior: rule.controlBehavior,
            warmUpPeriodSec: rule.warmUpPeriodSec,
            maxQueueingTimeMs: rule.maxQueueingTimeMs,
            app: rule.app,
            ip: rule.ip,
            port: rule.port
        };
    
        return $http({ 
            url: '/v1/flow/rule',
            data: rule,
            method: 'POST'
        });
    };

修改为：

this.newRule = function (rule) { 
        var param = { 
            resource: rule.resource,
            limitApp: rule.limitApp,
            grade: rule.grade,
            count: rule.count,
            strategy: rule.strategy,
            refResource: rule.refResource,
            controlBehavior: rule.controlBehavior,
            warmUpPeriodSec: rule.warmUpPeriodSec,
            maxQueueingTimeMs: rule.maxQueueingTimeMs,
            app: rule.app,
            ip: rule.ip,
            port: rule.port
        };
    
        return $http({ 
            url: '/v2/flow/rule',
            data: rule,
            method: 'POST'
        });
    };

主要是将 url 里的 v1 改为 v2。

###### 6.3. identity.js ######

找到webapp/resources/app/scripts/controllers/identity.js文件，找到以下代码：

修改为：

主要是将跳转到 v1 版本的流控界面改为跳转到 v2 版本的流控界面。

###### 6.4. flow\_v2.html ######

找到webapp/resources/app/views/flow\_v2.html文件，找到以下代码：

<a class="btn btn-default-inverse" style="float: right; margin-right: 10px;" ui-sref="dashboard.flowV1({app: app})">
        回到单机页面
    </a>

将其注释掉或删掉。

##### 七、修改的文件总览 #####

###### 7.1. 后端文件列表 ######

<table> 
 <thead> 
  <tr> 
   <th align="left">路径</th> 
   <th>说</th> 
  </tr> 
 </thead> 
 <tbody> 
  <tr> 
   <td align="left">sentinel-dashboard/pom.xml</td> 
   <td>依赖</td> 
  </tr> 
  <tr> 
   <td align="left">sentinel-dashboard/src/main/resources/application.properties</td> 
   <td></td> 
  </tr> 
  <tr> 
   <td align="left">com.alibaba.csp.sentinel.dashboard.rule.nacos.NacosConfig</td> 
   <td></td> 
  </tr> 
 </tbody> 
</table>

新增部分

<table> 
 <thead> 
  <tr> 
   <th align="left">路径</th> 
   <th>说明</th> 
  </tr> 
 </thead> 
 <tbody> 
  <tr> 
   <td align="left">com.alibaba.csp.sentinel.dashboard.rule.nacos.NacosPropertiesConfig</td> 
   <td></td> 
  </tr> 
  <tr> 
   <td align="left">com.alibaba.csp.sentinel.dashboard.rule.nacos.NacosConfigUtil</td> 
   <td></td> 
  </tr> 
  <tr> 
   <td align="left">com.alibaba.csp.sentinel.dashboard.rule.nacos.auth.AuthorityRuleNacosProvider</td> 
   <td></td> 
  </tr> 
  <tr> 
   <td align="left">com.alibaba.csp.sentinel.dashboard.rule.nacos.auth.AuthorityRuleNacosPublisher</td> 
   <td></td> 
  </tr> 
  <tr> 
   <td align="left">com.alibaba.csp.sentinel.dashboard.rule.nacos.degrade.DegradeRuleNacosProvider</td> 
   <td></td> 
  </tr> 
  <tr> 
   <td align="left">com.alibaba.csp.sentinel.dashboard.rule.nacos.degrade.DegradeRuleNacosPublisher</td> 
   <td></td> 
  </tr> 
  <tr> 
   <td align="left">com.alibaba.csp.sentinel.dashboard.rule.nacos.flow.FlowRuleNacosProvider</td> 
   <td></td> 
  </tr> 
  <tr> 
   <td align="left">com.alibaba.csp.sentinel.dashboard.rule.nacos.flow.FlowRuleNacosPublisher</td> 
   <td></td> 
  </tr> 
  <tr> 
   <td align="left">com.alibaba.csp.sentinel.dashboard.rule.nacos.gateway.api.GatewayApiRuleNacosProvider</td> 
   <td></td> 
  </tr> 
  <tr> 
   <td align="left">com.alibaba.csp.sentinel.dashboard.rule.nacos.gateway.api.GatewayApiRuleNacosPublisher</td> 
   <td></td> 
  </tr> 
  <tr> 
   <td align="left">com.alibaba.csp.sentinel.dashboard.rule.nacos.gateway.flow.GatewayFlowRuleNacosProvider</td> 
   <td></td> 
  </tr> 
  <tr> 
   <td align="left">com.alibaba.csp.sentinel.dashboard.rule.nacos.gateway.flow.GatewayFlowRuleNacosPublisher</td> 
   <td></td> 
  </tr> 
  <tr> 
   <td align="left">com.alibaba.csp.sentinel.dashboard.rule.nacos.param.ParamRuleNacosProvider</td> 
   <td></td> 
  </tr> 
  <tr> 
   <td align="left">com.alibaba.csp.sentinel.dashboard.rule.nacos.param.ParamRuleNacosPublisher</td> 
   <td></td> 
  </tr> 
  <tr> 
   <td align="left">com.alibaba.csp.sentinel.dashboard.rule.nacos.system.SystemRuleNacosProvider</td> 
   <td></td> 
  </tr> 
  <tr> 
   <td align="left">com.alibaba.csp.sentinel.dashboard.rule.nacos.system.SystemRuleNacosPublisher</td> 
   <td></td> 
  </tr> 
  <tr> 
   <td align="left">com.alibaba.csp.sentinel.dashboard.controller.gateway.GatewayApiController</td> 
   <td></td> 
  </tr> 
  <tr> 
   <td align="left">com.alibaba.csp.sentinel.dashboard.controller.gateway.GatewayFlowRuleController</td> 
   <td></td> 
  </tr> 
 </tbody> 
</table>

控制层

<table> 
 <thead> 
  <tr> 
   <th align="left">路径</th> 
   <th>说明</th> 
  </tr> 
 </thead> 
 <tbody> 
  <tr> 
   <td align="left">com.alibaba.csp.sentinel.dashboard.controller.v2.FlowControllerV2</td> 
   <td></td> 
  </tr> 
  <tr> 
   <td align="left">com.alibaba.csp.sentinel.dashboard.controller.AuthorityRuleController</td> 
   <td></td> 
  </tr> 
  <tr> 
   <td align="left">com.alibaba.csp.sentinel.dashboard.controller.DegradeController</td> 
   <td></td> 
  </tr> 
  <tr> 
   <td align="left">com.alibaba.csp.sentinel.dashboard.controller.ParamFlowRuleController</td> 
   <td></td> 
  </tr> 
  <tr> 
   <td align="left">com.alibaba.csp.sentinel.dashboard.controller.SystemController</td> 
   <td></td> 
  </tr> 
 </tbody> 
</table>

###### 7.2. 前端文件列表 ######

<table> 
 <thead> 
  <tr> 
   <th align="left">路径</th> 
   <th>说明</th> 
  </tr> 
 </thead> 
 <tbody> 
  <tr> 
   <td align="left">webapp/resources/app/scripts/directives/sidebar/sidebar.html</td> 
   <td></td> 
  </tr> 
  <tr> 
   <td align="left">webapp/resources/app/scripts/services/flow_service_v1.js</td> 
   <td></td> 
  </tr> 
  <tr> 
   <td align="left">webapp/resources/app/scripts/controllers/identity.js</td> 
   <td></td> 
  </tr> 
  <tr> 
   <td align="left">webapp/resources/app/views/flow_v2.html</td> 
   <td></td> 
  </tr> 
 </tbody> 
</table>

Alibaba Sentinel Nacos 持久化规则

至此改造基本完毕。

##### 八、编译打包 #####

###### 8.1. 编译前端 ######

进入项目 webapp/resources 目录，运行

npm install

###### 8.2. 编译打包后端 ######

进入项目 sentienl-dashboard 目录，运行

mvn clean package -Dmaven.test.skip=true

如果报错，则进入上级目录 sentinel ，执行`mvn clean package -Dmaven.test.skip=true` 后重新打包。  
之后会在 target 目录下生成 sentinel-dashboard.jar 。

通过以下命令运行

java -Dserver.port=8888 -Dcsp.sentinel.dashboard.server=localhost:8888 -Dproject.name=sentinel-dashboard -jar sentinel-dashboard.jar

##### 九、测试验证 #####

###### 9.1. 版本选取 ######

<table> 
 <thead> 
  <tr> 
   <th>组件</th> 
   <th>版本</th> 
  </tr> 
 </thead> 
 <tbody> 
  <tr> 
   <td>nacos</td> 
   <td>1.4.2</td> 
  </tr> 
  <tr> 
   <td>sentinel</td> 
   <td>1.8.2</td> 
  </tr> 
 </tbody> 
</table>

###### 9.2. 启动nacos ######

![在这里插入图片描述][watermark_type_ZmFuZ3poZW5naGVpdGk_shadow_10_text_aHR0cHM6Ly9ibG9nLmNzZG4ubmV0L3dlaXhpbl80MDgxNjczOA_size_16_color_FFFFFF_t_70 5]  
[http://localhost:8848/nacos/][http_localhost_8848_nacos]  
账号/密码：nacos/nacos

![在这里插入图片描述][watermark_type_ZmFuZ3poZW5naGVpdGk_shadow_10_text_aHR0cHM6Ly9ibG9nLmNzZG4ubmV0L3dlaXhpbl80MDgxNjczOA_size_16_color_FFFFFF_t_70 6]

###### 9.3. 启动sentinel-dashboard ######

java -Dserver.port=8888 -Dcsp.sentinel.dashboard.server=localhost:8888 -Dproject.name=sentinel-dashboard -jar sentinel-dashboard.jar

![在这里插入图片描述][watermark_type_ZmFuZ3poZW5naGVpdGk_shadow_10_text_aHR0cHM6Ly9ibG9nLmNzZG4ubmV0L3dlaXhpbl80MDgxNjczOA_size_16_color_FFFFFF_t_70 7]  
[http://localhost:8888/][http_localhost_8888]

![在这里插入图片描述][watermark_type_ZmFuZ3poZW5naGVpdGk_shadow_10_text_aHR0cHM6Ly9ibG9nLmNzZG4ubmV0L3dlaXhpbl80MDgxNjczOA_size_16_color_FFFFFF_t_70 8]

![在这里插入图片描述][watermark_type_ZmFuZ3poZW5naGVpdGk_shadow_10_text_aHR0cHM6Ly9ibG9nLmNzZG4ubmV0L3dlaXhpbl80MDgxNjczOA_size_16_color_FFFFFF_t_70 9]

###### 9.4. 添加流控规则 ######

![在这里插入图片描述][watermark_type_ZmFuZ3poZW5naGVpdGk_shadow_10_text_aHR0cHM6Ly9ibG9nLmNzZG4ubmV0L3dlaXhpbl80MDgxNjczOA_size_16_color_FFFFFF_t_70 10]  
![在这里插入图片描述][watermark_type_ZmFuZ3poZW5naGVpdGk_shadow_10_text_aHR0cHM6Ly9ibG9nLmNzZG4ubmV0L3dlaXhpbl80MDgxNjczOA_size_16_color_FFFFFF_t_70 11]

登录nacos查看规则是否同步  
![在这里插入图片描述][watermark_type_ZmFuZ3poZW5naGVpdGk_shadow_10_text_aHR0cHM6Ly9ibG9nLmNzZG4ubmV0L3dlaXhpbl80MDgxNjczOA_size_16_color_FFFFFF_t_70 12]

![在这里插入图片描述][watermark_type_ZmFuZ3poZW5naGVpdGk_shadow_10_text_aHR0cHM6Ly9ibG9nLmNzZG4ubmV0L3dlaXhpbl80MDgxNjczOA_size_16_color_FFFFFF_t_70 13]

###### 9.5. 重启sentinel-dashboard ######

在未做改造前规则存在内存中，sentinel-dashboard重启后规则失效；查看改造后，sentinel-dashboard重启后，nacos是否将规则同步到sentinel-dashboard控制台的流控规则页面中。  
![在这里插入图片描述][watermark_type_ZmFuZ3poZW5naGVpdGk_shadow_10_text_aHR0cHM6Ly9ibG9nLmNzZG4ubmV0L3dlaXhpbl80MDgxNjczOA_size_16_color_FFFFFF_t_70 14]  
重新登陆sentinel-dashboard  
![在这里插入图片描述][watermark_type_ZmFuZ3poZW5naGVpdGk_shadow_10_text_aHR0cHM6Ly9ibG9nLmNzZG4ubmV0L3dlaXhpbl80MDgxNjczOA_size_16_color_FFFFFF_t_70 15]  
重启后规则仍然存在

###### 9.6. 删除流控规则 ######

在sentinel-dashboard控制台的流控规则中将规则删除，查看nacos规则是否同步删除

![在这里插入图片描述][watermark_type_ZmFuZ3poZW5naGVpdGk_shadow_10_text_aHR0cHM6Ly9ibG9nLmNzZG4ubmV0L3dlaXhpbl80MDgxNjczOA_size_16_color_FFFFFF_t_70 16]  
流控规则是空的  
![在这里插入图片描述][watermark_type_ZmFuZ3poZW5naGVpdGk_shadow_10_text_aHR0cHM6Ly9ibG9nLmNzZG4ubmV0L3dlaXhpbl80MDgxNjczOA_size_16_color_FFFFFF_t_70 17]  
登录nacos查看规则，是否同步删除了  
![在这里插入图片描述][watermark_type_ZmFuZ3poZW5naGVpdGk_shadow_10_text_aHR0cHM6Ly9ibG9nLmNzZG4ubmV0L3dlaXhpbl80MDgxNjczOA_size_16_color_FFFFFF_t_70 18]  
![在这里插入图片描述][watermark_type_ZmFuZ3poZW5naGVpdGk_shadow_10_text_aHR0cHM6Ly9ibG9nLmNzZG4ubmV0L3dlaXhpbl80MDgxNjczOA_size_16_color_FFFFFF_t_70 19]

###### 9.7. nacos删除流控规则 ######

从 nacos删除流控规则 ，验证sentinel-dashboard是否同步删除，其实想验证nacos修改规则参数，sentinel-dashboard控制台是否同步配置。  
删除前：  
![在这里插入图片描述][watermark_type_ZmFuZ3poZW5naGVpdGk_shadow_10_text_aHR0cHM6Ly9ibG9nLmNzZG4ubmV0L3dlaXhpbl80MDgxNjczOA_size_16_color_FFFFFF_t_70 20]  
![在这里插入图片描述][watermark_type_ZmFuZ3poZW5naGVpdGk_shadow_10_text_aHR0cHM6Ly9ibG9nLmNzZG4ubmV0L3dlaXhpbl80MDgxNjczOA_size_16_color_FFFFFF_t_70 21]  
删除规则：  
![在这里插入图片描述][watermark_type_ZmFuZ3poZW5naGVpdGk_shadow_10_text_aHR0cHM6Ly9ibG9nLmNzZG4ubmV0L3dlaXhpbl80MDgxNjczOA_size_16_color_FFFFFF_t_70 22]  
![在这里插入图片描述][watermark_type_ZmFuZ3poZW5naGVpdGk_shadow_10_text_aHR0cHM6Ly9ibG9nLmNzZG4ubmV0L3dlaXhpbl80MDgxNjczOA_size_16_color_FFFFFF_t_70 23]  
![在这里插入图片描述][watermark_type_ZmFuZ3poZW5naGVpdGk_shadow_10_text_aHR0cHM6Ly9ibG9nLmNzZG4ubmV0L3dlaXhpbl80MDgxNjczOA_size_16_color_FFFFFF_t_70 24]  
登录sentinel-dashboard查看规则是否还存在  
刷新sentinel-dashboard  
![在这里插入图片描述][watermark_type_ZmFuZ3poZW5naGVpdGk_shadow_10_text_aHR0cHM6Ly9ibG9nLmNzZG4ubmV0L3dlaXhpbl80MDgxNjczOA_size_16_color_FFFFFF_t_70 25]  
发现规则没有，验证效果符合预期  
从上面截图中可以看出流控规则删除了后nacos保存得流控规则也同步删除了。

###### 9.8. nacos修改流控规则 ######

在nacos上修改流控规则，验证sentinel-dashboard控制台是否同步  
修改前：  
![在这里插入图片描述][watermark_type_ZmFuZ3poZW5naGVpdGk_shadow_10_text_aHR0cHM6Ly9ibG9nLmNzZG4ubmV0L3dlaXhpbl80MDgxNjczOA_size_16_color_FFFFFF_t_70 26]  
![在这里插入图片描述][watermark_type_ZmFuZ3poZW5naGVpdGk_shadow_10_text_aHR0cHM6Ly9ibG9nLmNzZG4ubmV0L3dlaXhpbl80MDgxNjczOA_size_16_color_FFFFFF_t_70 27]  
修改后：  
![在这里插入图片描述][watermark_type_ZmFuZ3poZW5naGVpdGk_shadow_10_text_aHR0cHM6Ly9ibG9nLmNzZG4ubmV0L3dlaXhpbl80MDgxNjczOA_size_16_color_FFFFFF_t_70 28]  
![在这里插入图片描述][watermark_type_ZmFuZ3poZW5naGVpdGk_shadow_10_text_aHR0cHM6Ly9ibG9nLmNzZG4ubmV0L3dlaXhpbl80MDgxNjczOA_size_16_color_FFFFFF_t_70 29]  
![在这里插入图片描述][watermark_type_ZmFuZ3poZW5naGVpdGk_shadow_10_text_aHR0cHM6Ly9ibG9nLmNzZG4ubmV0L3dlaXhpbl80MDgxNjczOA_size_16_color_FFFFFF_t_70 30]  
登录sentinel-dashboard控制台查看流控规则配置是否也同步修改了  
![在这里插入图片描述][watermark_type_ZmFuZ3poZW5naGVpdGk_shadow_10_text_aHR0cHM6Ly9ibG9nLmNzZG4ubmV0L3dlaXhpbl80MDgxNjczOA_size_16_color_FFFFFF_t_70 31]  
从截图中可以看出，配置同步修改了

###### 9.9. 测试结论 ######

从上面通过在sentinel-dashboard控制台对流控规则的增加、删除以及sentinel-dashboard服务的重启启动，nacos上规则删除、规则修改等方面，测试结果可以看出符合预期，说明改造sentinel-dashboard，使用Nacos持久化规则成功！

##### 十、微服务集成 #####

###### 10.1. pom依赖引入 ######

<parent>
            <groupId>org.springframework.boot</groupId>
            <artifactId>spring-boot-starter-parent</artifactId>
            <version>2.3.2.RELEASE</version>
        </parent>
        <dependencies>
            <dependency>
                <groupId>org.springframework.boot</groupId>
                <artifactId>spring-boot-starter-web</artifactId>
            </dependency>
            <dependency>
                <groupId>org.springframework.boot</groupId>
                <artifactId>spring-boot-starter-actuator</artifactId>
            </dependency>
              
            <dependency>
                <groupId>com.alibaba.cloud</groupId>
                <artifactId>spring-cloud-starter-alibaba-nacos-discovery</artifactId>
            </dependency>
            
            <dependency>
                <groupId>com.alibaba.cloud</groupId>
                <artifactId>spring-cloud-starter-alibaba-nacos-config</artifactId>
            </dependency>
             
            <dependency>
                <groupId>com.alibaba.csp</groupId>
                <artifactId>sentinel-datasource-nacos</artifactId>
            </dependency>
             
            <dependency>
                <groupId>com.alibaba.cloud</groupId>
                <artifactId>spring-cloud-starter-alibaba-sentinel</artifactId>
            </dependency>
        </dependencies>
    
        <dependencyManagement>
            <dependencies>
                
                <dependency>
                    <groupId>com.alibaba.cloud</groupId>
                    <artifactId>spring-cloud-alibaba-dependencies</artifactId>
                    <version>2.2.6.RELEASE</version>
                    <scope>import</scope>
                    <type>pom</type>
                </dependency>
            </dependencies>
        </dependencyManagement>

###### 10.2. sentinel规则持久化配置 ######

spring:
      cloud:
        sentinel:
          transport:
            dashboard: 127.0.0.1:8888
          datasource:
            # 名称随意
            flow:
              nacos:
                server-addr: localhost:8848
                dataId: ${spring.application.name}-flow-rules
                groupId: SENTINEL_GROUP
                # 规则类型，取值见：
                # org.springframework.cloud.alibaba.sentinel.datasource.RuleType
                rule-type: flow
            degrade:
              nacos:
                server-addr: localhost:8848
                dataId: ${spring.application.name}-degrade-rules
                groupId: SENTINEL_GROUP
                rule-type: degrade
            system:
              nacos:
                server-addr: localhost:8848
                dataId: ${spring.application.name}-system-rules
                groupId: SENTINEL_GROUP
                rule-type: system
            authority:
              nacos:
                server-addr: localhost:8848
                dataId: ${spring.application.name}-authority-rules
                groupId: SENTINEL_GROUP
                rule-type: authority
            param-flow:
              nacos:
                server-addr: localhost:8848
                dataId: ${spring.application.name}-param-flow-rules
                groupId: SENTINEL_GROUP
                rule-type: param-flow
        nacos:
          discovery:
            service: order-serv
          server-addr: localhost:8848
      application:
        name: sentinel-nacos
    
    server:
      port: 9000
    
    
    management:
      endpoint:
      endpoints:
        web:
          exposure:
            include: '*'

###### 10.3. nacos效果图 ######

与上面的配置一一对应  
![在这里插入图片描述][watermark_type_ZmFuZ3poZW5naGVpdGk_shadow_10_text_aHR0cHM6Ly9ibG9nLmNzZG4ubmV0L3dlaXhpbl80MDgxNjczOA_size_16_color_FFFFFF_t_70 32]

[https_github.com_alibaba_Sentinel]: https://github.com/alibaba/Sentinel
[watermark_type_ZmFuZ3poZW5naGVpdGk_shadow_10_text_aHR0cHM6Ly9ibG9nLmNzZG4ubmV0L3dlaXhpbl80MDgxNjczOA_size_16_color_FFFFFF_t_70]: /images/20220829/ece6db79c7bd4d248a5ae7ef41535b0d.png
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[http_localhost_8848_nacos]: http://localhost:8848/nacos/
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[http_localhost_8888]: http://localhost:8888/
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