带你从零开始整合 Spring Cloud Alibaba 系列-最新版本20200613

谁践踏了优雅 2023-02-17 11:23 36阅读 0赞

### 快速导航 ###

*   *   *   *  一、Nacos
             *   *   *  1. Nacos 简介
                     *  2. Nacos 安装
                     *  3. 整合 Spring Cloud Alibaba
             *  二、Sentinel
             *   *   *  1. Sentinel 简介
                     *  2. Sentinel 安装
                     *  3. 整合 Spring Cloud Alibaba
             *  三、Seata
             *   *   *  1. Seata 简介
                     *  2. Seata 安装
                     *  3. 整合 Spring Cloud Alibaba

> 整合项目源码：https://github.com/lytao123/my-alibaba-integration

项目信息:

<table> 
 <thead> 
  <tr> 
   <th align="left">组件</th> 
   <th align="left">版本</th> 
   <th align="left">描述</th> 
  </tr> 
 </thead> 
 <tbody> 
  <tr> 
   <td align="left">Spring-Boot</td> 
   <td align="left">2.2.2.RELEASE</td> 
   <td align="left"></td> 
  </tr> 
  <tr> 
   <td align="left">Spring-Cloud</td> 
   <td align="left">Hoxton.RELEASE</td> 
   <td align="left"></td> 
  </tr> 
  <tr> 
   <td align="left">Spring-Cloud-Alibaba</td> 
   <td align="left">2.2.0.RELEASE</td> 
   <td align="left">Nacos 版本1.2.1</td> 
  </tr> 
  <tr> 
   <td align="left">Spring-Cloud-Alibaba</td> 
   <td align="left">2.2.0.RELEASE</td> 
   <td align="left">Sentinel 版本 1.7.2</td> 
  </tr> 
  <tr> 
   <td align="left">Spring-Cloud-Alibaba</td> 
   <td align="left">2.2.0.RELEASE</td> 
   <td align="left">Seata 版本 1.2.0</td> 
  </tr> 
 </tbody> 
</table>

#### 一、Nacos ####

###### 1. Nacos 简介 ######

> https://nacos.io/zh-cn/docs

Nacos 是什么？我们来看看官网的强大介绍。  
FROM [https://nacos.io/zh-cn/docs/what-is-nacos.html][https_nacos.io_zh-cn_docs_what-is-nacos.html]

>  *  Nacos 致力于帮助您发现、配置和管理微服务。Nacos 提供了一组简单易用的特性集，帮助您快速实现动态服务发现、服务配置、服务元数据及流量管理。
>  *  Nacos 帮助您更敏捷和容易地构建、交付和管理微服务平台。Nacos 是构建以“服务”为中心的现代应用架构(例如微服务范式、云原生范式) 的服务基础设施。
>  *  Nacos 支持主流类型的“服务”的发现、配置和管理，包括 Spring、Spring Boot、Spring Cloud、Docker、Dubboo、Kubernates 等。特性：
>     
>      *  服务发现和服务健康监测
>      *  动态配置服务
>      *  动态 DNS 服务
>      *  服务及其元数据管理

从上可以看出相当于加强版的 Eureka 和 配置中心结合，所以我们还是有必要学习的。

###### 2. Nacos 安装 ######

*  2.1 下载 Nacos  
    从 [https://github.com/alibaba/nacos/releases][https_github.com_alibaba_nacos_releases] 下载对应系统版本

<table> 
 <thead> 
  <tr> 
   <th align="left">系统</th> 
   <th align="left">系统版本</th> 
  </tr> 
 </thead> 
 <tbody> 
  <tr> 
   <td align="left">Linux/Unix/Mac</td> 
   <td align="left"><code>.tar.gz</code> 或 <code>.zip</code></td> 
  </tr> 
  <tr> 
   <td align="left">Windows</td> 
   <td align="left"><code>.zip</code></td> 
  </tr> 
 </tbody> 
</table>

*  2.2 解压

<table> 
 <thead> 
  <tr> 
   <th align="left">系统</th> 
   <th align="left">解压方式</th> 
  </tr> 
 </thead> 
 <tbody> 
  <tr> 
   <td align="left">Linux/Unix/Mac</td> 
   <td align="left"><code>unzip nacos-server-$version.zip 或者 tar -xvf nacos-server-$version.tar.gz</code></td> 
  </tr> 
  <tr> 
   <td align="left">Windows</td> 
   <td align="left">使用解压工具进行解压</td> 
  </tr> 
 </tbody> 
</table>

*  2.3 运行

<table> 
 <thead> 
  <tr> 
   <th align="left">系统</th> 
   <th align="left">启动方式</th> 
   <th align="left">关闭方式</th> 
  </tr> 
 </thead> 
 <tbody> 
  <tr> 
   <td align="left">Linux/Unix/Mac</td> 
   <td align="left">单机模式:<code>sh startup.sh -m standalone</code> 集群模式: <code>sh startup.sh</code></td> 
   <td align="left"><code>sh shutdown.sh</code></td> 
  </tr> 
  <tr> 
   <td align="left">Windows</td> 
   <td align="left">双击startup.cmd运行文件或运行命令:<code>cmd startup.cmd</code></td> 
   <td align="left">双击shutdown.cmd运行文件或运行命令:<code>cmd shutdown.cmd</code></td> 
  </tr> 
 </tbody> 
</table>

*  2.4 运行成功界面  
    ![在这里插入图片描述][watermark_type_ZmFuZ3poZW5naGVpdGk_shadow_10_text_aHR0cHM6Ly9ibG9nLmNzZG4ubmV0L3FxXzI0NTk4NjAx_size_16_color_FFFFFF_t_70]
 *  2.5 管理界面  
    访问：[http://ip:8848/nacos][http_ip_8848_nacos]  
    ![在这里插入图片描述][watermark_type_ZmFuZ3poZW5naGVpdGk_shadow_10_text_aHR0cHM6Ly9ibG9nLmNzZG4ubmV0L3FxXzI0NTk4NjAx_size_16_color_FFFFFF_t_70 1]  
    用户名密码均为 `nacos`。
 *  2.6 持久化  
    修改 `nacos/conf/application.properties` 文件，增加数据库信息：

cp conf/application.properties.example conf/application.properties
    vim conf/application.properties

#*************** Config Module Related Configurations ***************#
    ### If user MySQL as datasource:
    spring.datasource.platform=mysql
    
    ### Count of DB:
    db.num=1
    
    ### Connect URL of DB:
    db.url.0=jdbc:mysql://192.168.136.136:3306/nacos?characterEncoding=utf8&connectTimeout=1000&socketTimeout=3000&autoReconnect=true&serverTimezone=GMT%2B8&useSSL=false
    db.user=root
    db.password=root

![在这里插入图片描述][watermark_type_ZmFuZ3poZW5naGVpdGk_shadow_10_text_aHR0cHM6Ly9ibG9nLmNzZG4ubmV0L3FxXzI0NTk4NjAx_size_16_color_FFFFFF_t_70 2]  
如遇到无法连接数据库（数据库连接信息配置正常），那这可能是数据库驱动的问题，解决方法是在与 nacos目录下新建文件夹 `/nacos/plugins/mysql/` 下载对应的 mysql 驱动jar 放置其下，然后重启 Nacos 即可。

*  2.7 Nacos 集群搭建  
    搭建 Nacos集群比较简单，修改 `/conf/cluster.conf` 文件，在其增加每一个节点的 ip:port，然后分别启动每个节点即可。以单机部署伪集群为例，端口 33333、44444、55555作为集群：

在 `conf/application.properties` 修改 Nacos 端口：

cp conf/application.properties.example conf/application.properties
    vim conf/application.properties

![在这里插入图片描述][20200613215413821.png]

cp conf/cluster.conf.example conf/cluster.conf
    vim conf/cluster.conf

192.168.136.136:33333
    192.168.136.136:44444
    192.168.136.136:55555

![在这里插入图片描述][2020061321511547.png]  
分别启动每个端口对应的 Nacos 即可，最后通过 Nginx 反向代理每个节点。参考官方集群架构图：

![在这里插入图片描述][watermark_type_ZmFuZ3poZW5naGVpdGk_shadow_10_text_aHR0cHM6Ly9ibG9nLmNzZG4ubmV0L3FxXzI0NTk4NjAx_size_16_color_FFFFFF_t_70 3]

###### 3. 整合 Spring Cloud Alibaba ######

*  3.1 引入 pom

<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>

*  3.2 bootstrap.yml 加入配置

*  3.3 启动应用  
    在主启动类上加上注解 `@EnableDiscoveryClient` 启动即可。

详细代码请参考：https://github.com/lytao123/my-alibaba-integration

![在这里插入图片描述][watermark_type_ZmFuZ3poZW5naGVpdGk_shadow_10_text_aHR0cHM6Ly9ibG9nLmNzZG4ubmV0L3FxXzI0NTk4NjAx_size_16_color_FFFFFF_t_70 4]

#### 二、Sentinel ####

###### 1. Sentinel 简介 ######

> FROM [https://github.com/alibaba/Sentinel/wiki/%E4%B8%BB%E9%A1%B5][https_github.com_alibaba_Sentinel_wiki_E4_B8_BB_E9_A1_B5]  
> Sentinel 以流量为切入点，从流量控制、熔断降级、系统负载保护等多个维度保护服务的稳定性。 Sentinel 具有以下特征:
> 
>  *  丰富的应用场景：Sentinel 承接了阿里巴巴近 10 年的双十一大促流量的核心场景，例如秒杀（即突发流量控制在系统容量可以承受的范围）、消息削峰填谷、集群流量控制、实时熔断下游不可用应用等。
>  *  完备的实时监控：Sentinel 同时提供实时的监控功能。您可以在控制台中看到接入应用的单台机器秒级数据，甚至 500 台以下规模的集群的汇总运行情况。
>  *  广泛的开源生态：Sentinel 提供开箱即用的与其它开源框架/库的整合模块，例如与 Spring Cloud、Dubbo、gRPC 的整合。您只需要引入相应的依赖并进行简单的配置即可快速地接入 Sentinel。
>  *  完善的 SPI 扩展点：Sentinel 提供简单易用、完善的 SPI 扩展接口。您可以通过实现扩展接口来快速地定制逻辑。例如定制规则管理、适配动态数据源等。

工作流程：  
![在这里插入图片描述][watermark_type_ZmFuZ3poZW5naGVpdGk_shadow_10_text_aHR0cHM6Ly9ibG9nLmNzZG4ubmV0L3FxXzI0NTk4NjAx_size_16_color_FFFFFF_t_70 5]

###### 2. Sentinel 安装 ######

*  2.1 下载  
    https://github.com/alibaba/Sentinel/releases  
    ![在这里插入图片描述][watermark_type_ZmFuZ3poZW5naGVpdGk_shadow_10_text_aHR0cHM6Ly9ibG9nLmNzZG4ubmV0L3FxXzI0NTk4NjAx_size_16_color_FFFFFF_t_70 6]
 *  2.2 运行  
    因为其是一个 jar 包，直接运行即可，运行命令可以参考下面的，其他命令也可以。

nohup java -jar sentinel-dashboard-1.7.2.jar &

*  2.3 管理界面  
    访问地址: `http://ip:8080` ，用户名密码均为 `sentinel`.

![在这里插入图片描述][watermark_type_ZmFuZ3poZW5naGVpdGk_shadow_10_text_aHR0cHM6Ly9ibG9nLmNzZG4ubmV0L3FxXzI0NTk4NjAx_size_16_color_FFFFFF_t_70 7]

*  2.4 持久化 Sentinel 配置到 Nacos

规则：在对应 namespace和group下创建 application-name

[
        {
            "resource" : "cluster-resource",     // 限流的资源名称
            "grade" : 1,                                    // 限流模式为：qps
            "count" : 10,                                  // 阈值为：10
            "clusterMode" :  true,                    // 集群模式为：true
            "clusterConfig" : {
                "flowId" : 111,                            // 全局唯一id
                "thresholdType" : 1,                  // 阈值模式伪：全局阈值
                "fallbackToLocalWhenFail" : true // 在 client 连接失败或通信失败时，是否退化到本地的限流模式
            }
        }
    ]

![在这里插入图片描述][watermark_type_ZmFuZ3poZW5naGVpdGk_shadow_10_text_aHR0cHM6Ly9ibG9nLmNzZG4ubmV0L3FxXzI0NTk4NjAx_size_16_color_FFFFFF_t_70 8]

###### 3. 整合 Spring Cloud Alibaba ######

*  3.1 引入 pom

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

*  3.2 bootstrap.yml 加入配置

nacos:
      server-addr: 192.168.136.136:8848  # 单机
    #  server-addr: 127.0.0.1:80  # 集群
    
    spring:
      application:
        name: cloud-alibaba-order
      profiles:
          active: dev
      cloud:
        nacos:
          discovery:
            server-addr: ${nacos.server-addr}
          config:
            server-addr: ${nacos.server-addr}
            file-extension: yaml
            namespace: ${spring.profiles.active}
            group: DEFAULT_GROUP
        sentinel:
          # 针对 alibaba 2.2 版本兼容 start
          eager: true
          filter:
            url-patterns: /**
          # 针对 alibaba 2.2 版本兼容 end
          transport:
            dashboard: http://192.168.136.136:8080
            port: 8719  # 默认8719，假如被占用了会自动从8719开始依次+1扫描。直至找到未被占用的端口
          # 持久化 sentinel
          datasource:
            ds1:
              nacos:
                server-addr: ${nacos.server-addr}
                dataId: ${spring.application.name}
                groupId: ${spring.cloud.nacos.config.group}
                namespace: ${spring.cloud.nacos.config.namespace}
                data-type: json
                rule-type: flow

*  3.3 启动应用  
    启动应用即可。各种限流+熔断+降级+监控等通过 `@SentinelResource` \+ 控制台配置。

详细请参考：https://github.com/lytao123/my-alibaba-integration

#### 三、Seata ####

###### 1. Seata 简介 ######

> FROM [http://seata.io/zh-cn/docs/overview/what-is-seata.html][http_seata.io_zh-cn_docs_overview_what-is-seata.html]

> Seata 是一款开源的分布式事务解决方案，致力于提供高性能和简单易用的分布式事务服务。Seata 将为用户提供了 AT、TCC、SAGA 和 XA 事务模式，为用户打造一站式的分布式解决方案。

###### 2. Seata 安装 ######

*  2.1 下载  
    下载链接：https://github.com/seata/seata/releases， 目前最新版为 1.2.0
 *  2.2 解压

tar -zxvf seata-server-1.2.0.tar.gz
    
    unzip seata-server-1.2.0.tar.gz

*  2.3 启动  
    单机版可以直接运行命令 `sh bin/seata-server.sh` 即可，默认端口是 `8091` ，启动成功日志打印：

2020-06-13 19:34:21.683 WARN [main]i.s.c.l.EnhancedServiceLoader$InnerEnhancedServiceLoader.loadFile:482 -The same extension io.seata.server.storage.db.lock.DataBaseLockManager has already been loaded, skipped
    2020-06-13 19:34:21.684 WARN [main]i.s.c.l.EnhancedServiceLoader$InnerEnhancedServiceLoader.loadFile:482 -The same extension io.seata.server.storage.file.lock.FileLockManager has already been loaded, skipped
    2020-06-13 19:34:21.829 INFO [main]io.seata.core.rpc.netty.RpcServerBootstrap.start:155 -Server started ...

这里我们已集群为例。  
首先切到目前 `/seata/conf/` 下 `cd seata/conf/`  
修改 registry.conf 内容，配置 `type = "nacos"` 及 nacos 信息

# 其他组件的我已经删掉了
    registry {
      # file 、nacos 、eureka、redis、zk、consul、etcd3、sofa
      type = "nacos" # 改为 nacos
    
      nacos {
        application = "seata-server"
        serverAddr = "127.0.0.1"
    	cluster = "default"
        namespace = ""
      }
    }
    
    config {
      # file、nacos 、apollo、zk、consul、etcd3
      type = "nacos"  # 改为 nacos
    
      nacos {
        serverAddr = "127.0.0.1"
        namespace = ""
      }
    }

![在这里插入图片描述][watermark_type_ZmFuZ3poZW5naGVpdGk_shadow_10_text_aHR0cHM6Ly9ibG9nLmNzZG4ubmV0L3FxXzI0NTk4NjAx_size_16_color_FFFFFF_t_70 9]  
修改 file.conf 内容，配置 `mode = "db"` 并配置数据库信息

## transaction log store, only used in seata-server
    store {
      ## store mode: file、db
      mode = "db" # 设置db模式
    
      ## database store property
      db {
        ## the implement of javax.sql.DataSource, such as DruidDataSource(druid)/BasicDataSource(dbcp) etc.
        datasource = "druid"
        ## mysql/oracle/postgresql/h2/oceanbase etc.
        dbType = "mysql"
        #driverClassName = "com.mysql.jdbc.Driver"
    	driverClassName = "com.mysql.cj.jdbc.Driver"  # MYSQL 8 JDBC 驱动
        url = "jdbc:mysql://192.168.136.136:3306/seata"
        user = "root"
        password = "root"
        minConn = 5
        maxConn = 30
        globalTable = "global_table"
        branchTable = "branch_table"
        lockTable = "lock_table"
        queryLimit = 100
        maxWait = 5000
      }
    }

如果是 Mysql 8 不仅要修改JDBC 驱动，还需将其驱动包放到 `lib` 目录下。

在刚才配置的数据库下执行建表语句：

SET NAMES utf8mb4;
    SET FOREIGN_KEY_CHECKS = 0;
    
    -- ----------------------------
    -- Table structure for branch_table
    -- ----------------------------
    DROP TABLE IF EXISTS `branch_table`;
    CREATE TABLE `branch_table`  (
      `branch_id` bigint(0) NOT NULL,
      `xid` varchar(128) CHARACTER SET utf8 COLLATE utf8_general_ci NOT NULL,
      `transaction_id` bigint(0) NULL DEFAULT NULL,
      `resource_group_id` varchar(32) CHARACTER SET utf8 COLLATE utf8_general_ci NULL DEFAULT NULL,
      `resource_id` varchar(256) CHARACTER SET utf8 COLLATE utf8_general_ci NULL DEFAULT NULL,
      `branch_type` varchar(8) CHARACTER SET utf8 COLLATE utf8_general_ci NULL DEFAULT NULL,
      `status` tinyint(0) NULL DEFAULT NULL,
      `client_id` varchar(64) CHARACTER SET utf8 COLLATE utf8_general_ci NULL DEFAULT NULL,
      `application_data` varchar(2000) CHARACTER SET utf8 COLLATE utf8_general_ci NULL DEFAULT NULL,
      `gmt_create` datetime(6) NULL DEFAULT NULL,
      `gmt_modified` datetime(6) NULL DEFAULT NULL,
      PRIMARY KEY (`branch_id`) USING BTREE,
      INDEX `idx_xid`(`xid`) USING BTREE
    ) ENGINE = InnoDB CHARACTER SET = utf8 COLLATE = utf8_general_ci ROW_FORMAT = Dynamic;
    
    -- ----------------------------
    -- Records of branch_table
    -- ----------------------------
    
    -- ----------------------------
    -- Table structure for global_table
    -- ----------------------------
    DROP TABLE IF EXISTS `global_table`;
    CREATE TABLE `global_table`  (
      `xid` varchar(128) CHARACTER SET utf8 COLLATE utf8_general_ci NOT NULL,
      `transaction_id` bigint(0) NULL DEFAULT NULL,
      `status` tinyint(0) NOT NULL,
      `application_id` varchar(32) CHARACTER SET utf8 COLLATE utf8_general_ci NULL DEFAULT NULL,
      `transaction_service_group` varchar(32) CHARACTER SET utf8 COLLATE utf8_general_ci NULL DEFAULT NULL,
      `transaction_name` varchar(128) CHARACTER SET utf8 COLLATE utf8_general_ci NULL DEFAULT NULL,
      `timeout` int(0) NULL DEFAULT NULL,
      `begin_time` bigint(0) NULL DEFAULT NULL,
      `application_data` varchar(2000) CHARACTER SET utf8 COLLATE utf8_general_ci NULL DEFAULT NULL,
      `gmt_create` datetime(0) NULL DEFAULT NULL,
      `gmt_modified` datetime(0) NULL DEFAULT NULL,
      PRIMARY KEY (`xid`) USING BTREE,
      INDEX `idx_gmt_modified_status`(`gmt_modified`, `status`) USING BTREE,
      INDEX `idx_transaction_id`(`transaction_id`) USING BTREE
    ) ENGINE = InnoDB CHARACTER SET = utf8 COLLATE = utf8_general_ci ROW_FORMAT = Dynamic;
    
    -- ----------------------------
    -- Records of global_table
    -- ----------------------------
    
    -- ----------------------------
    -- Table structure for lock_table
    -- ----------------------------
    DROP TABLE IF EXISTS `lock_table`;
    CREATE TABLE `lock_table`  (
      `row_key` varchar(128) CHARACTER SET utf8 COLLATE utf8_general_ci NOT NULL,
      `xid` varchar(96) CHARACTER SET utf8 COLLATE utf8_general_ci NULL DEFAULT NULL,
      `transaction_id` bigint(0) NULL DEFAULT NULL,
      `branch_id` bigint(0) NOT NULL,
      `resource_id` varchar(256) CHARACTER SET utf8 COLLATE utf8_general_ci NULL DEFAULT NULL,
      `table_name` varchar(32) CHARACTER SET utf8 COLLATE utf8_general_ci NULL DEFAULT NULL,
      `pk` varchar(36) CHARACTER SET utf8 COLLATE utf8_general_ci NULL DEFAULT NULL,
      `gmt_create` datetime(0) NULL DEFAULT NULL,
      `gmt_modified` datetime(0) NULL DEFAULT NULL,
      PRIMARY KEY (`row_key`) USING BTREE,
      INDEX `idx_branch_id`(`branch_id`) USING BTREE
    ) ENGINE = InnoDB CHARACTER SET = utf8 COLLATE = utf8_general_ci ROW_FORMAT = Dynamic;
    
    SET FOREIGN_KEY_CHECKS = 1;

另外每个业务数据库也需要创建 `undo_log` 表

DROP TABLE IF EXISTS `undo_log`;
    CREATE TABLE `undo_log`  (
      `id` bigint(0) NOT NULL AUTO_INCREMENT,
      `branch_id` bigint(0) NOT NULL,
      `xid` varchar(100) CHARACTER SET utf8 COLLATE utf8_general_ci NOT NULL,
      `context` varchar(128) CHARACTER SET utf8 COLLATE utf8_general_ci NOT NULL,
      `rollback_info` longblob NOT NULL,
      `log_status` int(0) NOT NULL,
      `log_created` datetime(0) NOT NULL,
      `log_modified` datetime(0) NOT NULL,
      PRIMARY KEY (`id`) USING BTREE,
      UNIQUE INDEX `ux_undo_log`(`xid`, `branch_id`) USING BTREE
    ) ENGINE = InnoDB AUTO_INCREMENT = 1 CHARACTER SET = utf8 COLLATE = utf8_general_ci ROW_FORMAT = Dynamic;
    
    SET FOREIGN_KEY_CHECKS = 1;

此外，为方便 application 连接使用，  
新建 config.txt ,编辑内容为：

service.vgroupMapping.test_tx_group=default  # test_tx_group 自己设置，application 中 tx-service-group 与其一致
    store.mode=db
    store.db.datasource=druid
    store.db.dbType=mysql
    store.db.driverClassName=com.mysql.cj.jdbc.Driver
    store.db.url=jdbc:mysql://192.168.136.136:3306/seata?useUnicode=true
    store.db.user=root
    store.db.password=root
    store.db.minConn=5
    store.db.maxConn=30
    store.db.globalTable=global_table
    store.db.branchTable=branch_table
    store.db.lockTable=lock_table
    store.db.queryLimit=100
    store.db.maxWait=5000

通过 `nacos-config.sh` 工具 将 config.txt 中信息导入 Nacos 中  
下面为工具代码，复制保存成 `.sh 文件`： [工具下载地址][Link 1]

#!/usr/bin/env bash
    # Copyright 1999-2019 Seata.io Group.
    #
    # Licensed under the Apache License, Version 2.0 (the "License");
    # you may not use this file except in compliance with the License.
    # You may obtain a copy of the License at、
    #
    #      http://www.apache.org/licenses/LICENSE-2.0
    #
    # Unless required by applicable law or agreed to in writing, software
    # distributed under the License is distributed on an "AS IS" BASIS,
    # WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
    # See the License for the specific language governing permissions and
    # limitations under the License.
    
    while getopts ":h:p:g:t:u:w:" opt
    do
      case $opt in
      h)
        host=$OPTARG
        ;;
      p)
        port=$OPTARG
        ;;
      g)
        group=$OPTARG
        ;;
      t)
        tenant=$OPTARG
        ;;
      u)
        username=$OPTARG
        ;;
      w)
        password=$OPTARG
        ;;
      ?)
        echo " USAGE OPTION: $0 [-h host] [-p port] [-g group] [-t tenant] [-u username] [-w password] "
        exit 1
        ;;
      esac
    done
    
    if [[ -z ${host} ]]; then
        host=localhost
    fi
    if [[ -z ${port} ]]; then
        port=8848
    fi
    if [[ -z ${group} ]]; then
        group="SEATA_GROUP"
    fi
    if [[ -z ${tenant} ]]; then
        tenant=""
    fi
    if [[ -z ${username} ]]; then
        username=""
    fi
    if [[ -z ${password} ]]; then
        password=""
    fi
    
    nacosAddr=$host:$port
    contentType="content-type:application/json;charset=UTF-8"
    
    echo "set nacosAddr=$nacosAddr"
    echo "set group=$group"
    
    failCount=0
    tempLog=$(mktemp -u)
    function addConfig() {
      curl -X POST -H "${contentType}" "http://$nacosAddr/nacos/v1/cs/configs?dataId=$1&group=$group&content=$2&tenant=$tenant&username=$username&password=$password" >"${tempLog}" 2>/dev/null
      if [[ -z $(cat "${tempLog}") ]]; then
        echo " Please check the cluster status. "
        exit 1
      fi
      if [[ $(cat "${tempLog}") =~ "true" ]]; then
        echo "Set $1=$2 successfully "
      else
        echo "Set $1=$2 failure "
        (( failCount++ ))
      fi
    }
    
    count=0
    for line in $(cat $(dirname "$PWD")/conf/config.txt | sed s/[[:space:]]//g); do
      (( count++ ))
    	key=${line%%=*}
        value=${line#*=}
    	addConfig "${key}" "${value}"
    done
    
    echo "========================================================================="
    echo " Complete initialization parameters,  total-count:$count ,  failure-count:$failCount "
    echo "========================================================================="
    
    if [[ ${failCount} -eq 0 ]]; then
    	echo " Init nacos config finished, please start seata-server. "
    else
    	echo " init nacos config fail. "
    fi

![在这里插入图片描述][watermark_type_ZmFuZ3poZW5naGVpdGk_shadow_10_text_aHR0cHM6Ly9ibG9nLmNzZG4ubmV0L3FxXzI0NTk4NjAx_size_16_color_FFFFFF_t_70 10]  
最后启动：

# 启动第一个节点
    nohup sh bin/seata-server.sh -h 192.168.136.136 -p 18091 -n 1 &
    
    # 启动第二个节点
    nohup sh bin/seata-server.sh -h 192.168.136.136 -p 28091 -n 2 &
    
    # -h : nacos ip
    # -p : 端口
    # -n:  transactionId 事务编号，在多个 TC Server 时，区分各自节点

###### 3. 整合 Spring Cloud Alibaba ######

3.1 pom

<dependency>
        <groupId>com.alibaba.cloud</groupId>
        <artifactId>spring-cloud-starter-alibaba-seata</artifactId>
    </dependency>
    <dependency>
        <groupId>io.seata</groupId>
        <artifactId>seata-spring-boot-starter</artifactId>
        <version>1.2.0</version>
    </dependency>

3.2 bootstrap.yml 加入配置

# seata 配置项，对应 SeataProperties 类
    seata:
      application-id: ${spring.application.name}  # seata 应用编号，默认为 ${spring.application.name}
      tx-service-group: test_tx_group # seata 事务组编号，用于 TC 集群名
      # seata 服务配置项，对应 ServiceProperties 类
      service:
        grouplist:
          seata-server: 192.168.136.136:8091
        # 虚拟组和分组的映射, key一定要与 tx-service-group一致
        vgroupMapping:
          test_tx_group: default
      # seata 注册中心配置项，对应 RegistryProperties 类
      registry:
        type: nacos # 注册中心类型，默认为 file
        nacos:
          server-addr: ${nacos.server-addr} # Nacos 服务地址
      config:
        type: nacos # 注册中心类型，默认为 file
        nacos:
          server-addr: ${nacos.server-addr} # Nacos 服务地址

3.3 在需要分布式事务的 Service 方法上增加注解 `@GlobalTransactional`

3.4 启动测试

详细代码请参考：https://github.com/lytao123/my-alibaba-integration

[https_nacos.io_zh-cn_docs_what-is-nacos.html]: https://nacos.io/zh-cn/docs/what-is-nacos.html
[https_github.com_alibaba_nacos_releases]: https://github.com/alibaba/nacos/releases
[watermark_type_ZmFuZ3poZW5naGVpdGk_shadow_10_text_aHR0cHM6Ly9ibG9nLmNzZG4ubmV0L3FxXzI0NTk4NjAx_size_16_color_FFFFFF_t_70]: https://img-blog.csdnimg.cn/20200613213449451.png?x-oss-process=image/watermark,type_ZmFuZ3poZW5naGVpdGk,shadow_10,text_aHR0cHM6Ly9ibG9nLmNzZG4ubmV0L3FxXzI0NTk4NjAx,size_16,color_FFFFFF,t_70
[http_ip_8848_nacos]: http://ip:8848/nacos
[watermark_type_ZmFuZ3poZW5naGVpdGk_shadow_10_text_aHR0cHM6Ly9ibG9nLmNzZG4ubmV0L3FxXzI0NTk4NjAx_size_16_color_FFFFFF_t_70 1]: https://img-blog.csdnimg.cn/2020061321375598.png?x-oss-process=image/watermark,type_ZmFuZ3poZW5naGVpdGk,shadow_10,text_aHR0cHM6Ly9ibG9nLmNzZG4ubmV0L3FxXzI0NTk4NjAx,size_16,color_FFFFFF,t_70
[watermark_type_ZmFuZ3poZW5naGVpdGk_shadow_10_text_aHR0cHM6Ly9ibG9nLmNzZG4ubmV0L3FxXzI0NTk4NjAx_size_16_color_FFFFFF_t_70 2]: https://img-blog.csdnimg.cn/20200613213957992.png?x-oss-process=image/watermark,type_ZmFuZ3poZW5naGVpdGk,shadow_10,text_aHR0cHM6Ly9ibG9nLmNzZG4ubmV0L3FxXzI0NTk4NjAx,size_16,color_FFFFFF,t_70
[20200613215413821.png]: https://img-blog.csdnimg.cn/20200613215413821.png
[2020061321511547.png]: https://img-blog.csdnimg.cn/2020061321511547.png
[watermark_type_ZmFuZ3poZW5naGVpdGk_shadow_10_text_aHR0cHM6Ly9ibG9nLmNzZG4ubmV0L3FxXzI0NTk4NjAx_size_16_color_FFFFFF_t_70 3]: https://img-blog.csdnimg.cn/20200613215812437.png?x-oss-process=image/watermark,type_ZmFuZ3poZW5naGVpdGk,shadow_10,text_aHR0cHM6Ly9ibG9nLmNzZG4ubmV0L3FxXzI0NTk4NjAx,size_16,color_FFFFFF,t_70
[watermark_type_ZmFuZ3poZW5naGVpdGk_shadow_10_text_aHR0cHM6Ly9ibG9nLmNzZG4ubmV0L3FxXzI0NTk4NjAx_size_16_color_FFFFFF_t_70 4]: https://img-blog.csdnimg.cn/20200613225637935.png?x-oss-process=image/watermark,type_ZmFuZ3poZW5naGVpdGk,shadow_10,text_aHR0cHM6Ly9ibG9nLmNzZG4ubmV0L3FxXzI0NTk4NjAx,size_16,color_FFFFFF,t_70
[https_github.com_alibaba_Sentinel_wiki_E4_B8_BB_E9_A1_B5]: https://github.com/alibaba/Sentinel/wiki/%E4%B8%BB%E9%A1%B5
[watermark_type_ZmFuZ3poZW5naGVpdGk_shadow_10_text_aHR0cHM6Ly9ibG9nLmNzZG4ubmV0L3FxXzI0NTk4NjAx_size_16_color_FFFFFF_t_70 5]: https://img-blog.csdnimg.cn/20200613220456876.png?x-oss-process=image/watermark,type_ZmFuZ3poZW5naGVpdGk,shadow_10,text_aHR0cHM6Ly9ibG9nLmNzZG4ubmV0L3FxXzI0NTk4NjAx,size_16,color_FFFFFF,t_70
[watermark_type_ZmFuZ3poZW5naGVpdGk_shadow_10_text_aHR0cHM6Ly9ibG9nLmNzZG4ubmV0L3FxXzI0NTk4NjAx_size_16_color_FFFFFF_t_70 6]: https://img-blog.csdnimg.cn/20200613220911644.png?x-oss-process=image/watermark,type_ZmFuZ3poZW5naGVpdGk,shadow_10,text_aHR0cHM6Ly9ibG9nLmNzZG4ubmV0L3FxXzI0NTk4NjAx,size_16,color_FFFFFF,t_70
[watermark_type_ZmFuZ3poZW5naGVpdGk_shadow_10_text_aHR0cHM6Ly9ibG9nLmNzZG4ubmV0L3FxXzI0NTk4NjAx_size_16_color_FFFFFF_t_70 7]: https://img-blog.csdnimg.cn/20200613220802218.png?x-oss-process=image/watermark,type_ZmFuZ3poZW5naGVpdGk,shadow_10,text_aHR0cHM6Ly9ibG9nLmNzZG4ubmV0L3FxXzI0NTk4NjAx,size_16,color_FFFFFF,t_70
[watermark_type_ZmFuZ3poZW5naGVpdGk_shadow_10_text_aHR0cHM6Ly9ibG9nLmNzZG4ubmV0L3FxXzI0NTk4NjAx_size_16_color_FFFFFF_t_70 8]: https://img-blog.csdnimg.cn/2020061322164665.png?x-oss-process=image/watermark,type_ZmFuZ3poZW5naGVpdGk,shadow_10,text_aHR0cHM6Ly9ibG9nLmNzZG4ubmV0L3FxXzI0NTk4NjAx,size_16,color_FFFFFF,t_70
[http_seata.io_zh-cn_docs_overview_what-is-seata.html]: http://seata.io/zh-cn/docs/overview/what-is-seata.html
[watermark_type_ZmFuZ3poZW5naGVpdGk_shadow_10_text_aHR0cHM6Ly9ibG9nLmNzZG4ubmV0L3FxXzI0NTk4NjAx_size_16_color_FFFFFF_t_70 9]: https://img-blog.csdnimg.cn/20200613222938480.png?x-oss-process=image/watermark,type_ZmFuZ3poZW5naGVpdGk,shadow_10,text_aHR0cHM6Ly9ibG9nLmNzZG4ubmV0L3FxXzI0NTk4NjAx,size_16,color_FFFFFF,t_70
[Link 1]: https://download.csdn.net/download/qq_24598601/12520887
[watermark_type_ZmFuZ3poZW5naGVpdGk_shadow_10_text_aHR0cHM6Ly9ibG9nLmNzZG4ubmV0L3FxXzI0NTk4NjAx_size_16_color_FFFFFF_t_70 10]: https://img-blog.csdnimg.cn/20200613224716593.png?x-oss-process=image/watermark,type_ZmFuZ3poZW5naGVpdGk,shadow_10,text_aHR0cHM6Ly9ibG9nLmNzZG4ubmV0L3FxXzI0NTk4NjAx,size_16,color_FFFFFF,t_70