SpringCloudGateway 集成 nacos 整合实现动态路由_04

傷城~ 2022-09-05 14:54 200阅读 0赞

> 接上一篇：[SpringCloud Gateway 集成 oauth2 实现统一认证授权][SpringCloud Gateway _ oauth2]

### 文章目录 ###

*   *   *   *   *  一、目前存在的问题
                 *   *  1. 问题简述
                     *  2. 集成nacos前配置
                     *  3. 前言简述
                 *  二、网关模块改造集成nacos
                 *   *  2.1. 引入依赖
                     *  2.2. 创建bootstrap.yaml
                     *  2.3. 在nacos配置中心添加配置
                     *  2.4. 启动服务
                     *  2.5. 访问产品模块
                     *  2.6. 获取toeken
                     *  2.7. 携带toekn访问产品模块
                     *  2.8. 怎样证明配置动态刷新呢
                 *  三、利用注册中心动态路由
                 *   *  3.1. 查看服务列表
                     *  3.2. 应用名称替换ip和端口
                     *  3.3. 重新请求

##### 一、目前存在的问题 #####

###### 1. 问题简述 ######

*  SpringCloudGateway的路由规则写死在配置文件中，无法支持动态更新
 *  路由规则如何与服务注册中心联动

###### 2. 集成nacos前配置 ######

spring:
      cloud:
        gateway:
          routes:
            - id: product
              uri: http://localhost:9000
              predicates:
                - Host=product.gblfy.com**
            - id: auth
              uri: http://localhost:5000
              predicates:
                - Path=/oauth/token
      datasource:
        driver-class-name: com.mysql.cj.jdbc.Driver
        url: jdbc:mysql://localhost:3306/auth-serv?characterEncoding=UTF-8&serverTimezone=GMT%2B8
        username: root
        password: 123456

###### 3. 前言简述 ######

首先咱们这篇基于SpringCloudGateway集成授权认证中心的oauth2的因此，发起请求之前需要先通过网关访问认证授权中心auth-serv获取token才可以访问后面的模块。

##### 二、网关模块改造集成nacos #####

###### 2.1. 引入依赖 ######

<parent>
            <groupId>org.springframework.boot</groupId>
            <artifactId>spring-boot-starter-parent</artifactId>
            <version>2.3.2.RELEASE</version>
            <relativePath/> 
        </parent>
    
        <properties>
            <spring.cloud-version>Hoxton.SR9</spring.cloud-version>
        </properties>
        <dependencies>
            
            <dependency>
                <groupId>com.alibaba.cloud</groupId>
                <artifactId>spring-cloud-starter-alibaba-nacos-config</artifactId>
            </dependency>
            
            <dependency>
                <groupId>com.alibaba.cloud</groupId>
                <artifactId>spring-cloud-starter-alibaba-nacos-discovery</artifactId>
            </dependency>
            
            <dependency>
                <groupId>org.springframework.boot</groupId>
                <artifactId>spring-boot-starter-security</artifactId>
            </dependency>
            
            <dependency>
                <groupId>org.springframework.security</groupId>
                <artifactId>spring-security-oauth2-resource-server</artifactId>
            </dependency>
            
            <dependency>
                <groupId>org.springframework.cloud</groupId>
                <artifactId>spring-cloud-starter-oauth2</artifactId>
            </dependency>
            <dependency>
                <groupId>org.springframework.boot</groupId>
                <artifactId>spring-boot-starter-jdbc</artifactId>
            </dependency>
            <dependency>
                <groupId>mysql</groupId>
                <artifactId>mysql-connector-java</artifactId>
            </dependency>
            <dependency>
                <groupId>org.projectlombok</groupId>
                <artifactId>lombok</artifactId>
            </dependency>
            
            <dependency>
                <groupId>org.springframework.cloud</groupId>
                <artifactId>spring-cloud-starter-gateway</artifactId>
            </dependency>
        </dependencies>
    
        <dependencyManagement>
            
            <dependencies>
                <dependency>
                    <groupId>org.springframework.cloud</groupId>
                    <artifactId>spring-cloud-dependencies</artifactId>
                    <version>${spring.cloud-version}</version>
                    <type>pom</type>
                    <scope>import</scope>
                </dependency>
                
                <dependency>
                    <groupId>com.alibaba.cloud</groupId>
                    <artifactId>spring-cloud-alibaba-dependencies</artifactId>
                    <version>2.2.6.RELEASE</version>
                    <type>pom</type>
                    <scope>import</scope>
                </dependency>
            </dependencies>
        </dependencyManagement>

###### 2.2. 创建bootstrap.yaml ######

server:
      port: 8081
    spring:
      cloud:
        nacos:
          discovery:
            service: gateway-serv
          server-addr: localhost:8848
          config:
            server-addr: localhost:8848
            file-extension: yaml
            shared-configs[0]:
              dataId: gateway.yaml
              # 动态刷新
              refresh: true

将以前application.yml文件的内容，添加到nacos控制台的`gateway.yaml`

###### 2.3. 在nacos配置中心添加配置 ######

新建配置  
![在这里插入图片描述][watermark_type_ZmFuZ3poZW5naGVpdGk_shadow_10_text_aHR0cHM6Ly9ibG9nLmNzZG4ubmV0L3dlaXhpbl80MDgxNjczOA_size_16_color_FFFFFF_t_70]  
![在这里插入图片描述][watermark_type_ZmFuZ3poZW5naGVpdGk_shadow_10_text_aHR0cHM6Ly9ibG9nLmNzZG4ubmV0L3dlaXhpbl80MDgxNjczOA_size_16_color_FFFFFF_t_70 1]

###### 2.4. 启动服务 ######

启动Gateway-Serv模块服务  
![在这里插入图片描述][watermark_type_ZmFuZ3poZW5naGVpdGk_shadow_10_text_aHR0cHM6Ly9ibG9nLmNzZG4ubmV0L3dlaXhpbl80MDgxNjczOA_size_16_color_FFFFFF_t_70 2]  
启动auth-serv认证授权服务  
![在这里插入图片描述][watermark_type_ZmFuZ3poZW5naGVpdGk_shadow_10_text_aHR0cHM6Ly9ibG9nLmNzZG4ubmV0L3dlaXhpbl80MDgxNjczOA_size_16_color_FFFFFF_t_70 3]

启动product-serv服务  
![在这里插入图片描述][watermark_type_ZmFuZ3poZW5naGVpdGk_shadow_10_text_aHR0cHM6Ly9ibG9nLmNzZG4ubmV0L3dlaXhpbl80MDgxNjczOA_size_16_color_FFFFFF_t_70 4]

###### 2.5. 访问产品模块 ######

不请求auth-serv模块获取otken，直接通过网关访问产品模块

![在这里插入图片描述][watermark_type_ZmFuZ3poZW5naGVpdGk_shadow_10_text_aHR0cHM6Ly9ibG9nLmNzZG4ubmV0L3dlaXhpbl80MDgxNjczOA_size_16_color_FFFFFF_t_70 5]  
从上图可以看出访问需要认证授权

###### 2.6. 获取toeken ######

[http://localhost:8081/oauth/token][http_localhost_8081_oauth_token]  
通过认证授权中心获取toekn

grant_type:password
    client_id:app
    client_secret:app
    username:ziya
    password:111111

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

###### 2.7. 携带toekn访问产品模块 ######

携带toekn通过网关服务访问产品模块  
[http://product.gblfy.com:8081/product/1][http_product.gblfy.com_8081_product_1]  
![在这里插入图片描述][watermark_type_ZmFuZ3poZW5naGVpdGk_shadow_10_text_aHR0cHM6Ly9ibG9nLmNzZG4ubmV0L3dlaXhpbl80MDgxNjczOA_size_16_color_FFFFFF_t_70 7]  
从图中可以看出，获取token后，通过网关服务可以正常请求产品模块，并有响应报文。

###### 2.8. 怎样证明配置动态刷新呢 ######

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

再次通过网关请求产品服务模块服务  
![在这里插入图片描述][watermark_type_ZmFuZ3poZW5naGVpdGk_shadow_10_text_aHR0cHM6Ly9ibG9nLmNzZG4ubmV0L3dlaXhpbl80MDgxNjczOA_size_16_color_FFFFFF_t_70 9]  
![在这里插入图片描述][watermark_type_ZmFuZ3poZW5naGVpdGk_shadow_10_text_aHR0cHM6Ly9ibG9nLmNzZG4ubmV0L3dlaXhpbl80MDgxNjczOA_size_16_color_FFFFFF_t_70 10]

从图中可以看出访问请求拒接了，因为没有9200端口的服务应用。我们现在基于nacos-config配置动态将我们的路由规则管理起来了。

##### 三、利用注册中心动态路由 #####

###### 3.1. 查看服务列表 ######

有3台应用  
![在这里插入图片描述][watermark_type_ZmFuZ3poZW5naGVpdGk_shadow_10_text_aHR0cHM6Ly9ibG9nLmNzZG4ubmV0L3dlaXhpbl80MDgxNjczOA_size_16_color_FFFFFF_t_70 11]

###### 3.2. 应用名称替换ip和端口 ######

原配置

spring:
      cloud:
        gateway:
          routes:
            - id: product
              uri: http://localhost:9200
              predicates:
                - Host=product.gblfy.com**
            - id: auth
              uri: http://localhost:5000
              predicates:
                - Path=/oauth/token
      datasource:
        driver-class-name: com.mysql.cj.jdbc.Driver
        url: jdbc:mysql://localhost:3306/auth-serv?characterEncoding=UTF-8&serverTimezone=GMT%2B8
        username: root
        password: 123456

改造后配置

spring:
      cloud:
        gateway:
          routes:
            - id: product
              uri: lb://product-serv
              predicates:
                - Host=product.gblfy.com**
            - id: auth
              uri: lb://auth-serv
              predicates:
                - Path=/oauth/token
      datasource:
        driver-class-name: com.mysql.cj.jdbc.Driver
        url: jdbc:mysql://localhost:3306/auth-serv?characterEncoding=UTF-8&serverTimezone=GMT%2B8
        username: root
        password: 123456

###### 3.3. 重新请求 ######

[http://product.gblfy.com:8081/product/1][http_product.gblfy.com_8081_product_1]

Authorization: Bearer d364c6cc-3c60-402f-b3d0-af69f6d6b73e

![在这里插入图片描述][watermark_type_ZmFuZ3poZW5naGVpdGk_shadow_10_text_aHR0cHM6Ly9ibG9nLmNzZG4ubmV0L3dlaXhpbl80MDgxNjczOA_size_16_color_FFFFFF_t_70 12]  
从上图可以看出可以通过网关服务正常请求产品模块！

[SpringCloud Gateway _ oauth2]: https://blog.csdn.net/weixin_40816738/article/details/119778876
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[watermark_type_ZmFuZ3poZW5naGVpdGk_shadow_10_text_aHR0cHM6Ly9ibG9nLmNzZG4ubmV0L3dlaXhpbl80MDgxNjczOA_size_16_color_FFFFFF_t_70 4]: /images/20220829/a0b0fe30bd094f44a39188b264c0a134.png
[watermark_type_ZmFuZ3poZW5naGVpdGk_shadow_10_text_aHR0cHM6Ly9ibG9nLmNzZG4ubmV0L3dlaXhpbl80MDgxNjczOA_size_16_color_FFFFFF_t_70 5]: /images/20220829/5e0b9d34599f45baadc73e2d79cb1d93.png
[http_localhost_8081_oauth_token]: http://localhost:8081/oauth/token
[watermark_type_ZmFuZ3poZW5naGVpdGk_shadow_10_text_aHR0cHM6Ly9ibG9nLmNzZG4ubmV0L3dlaXhpbl80MDgxNjczOA_size_16_color_FFFFFF_t_70 6]: /images/20220829/13a1a67c22054f1290e45244d810714e.png
[http_product.gblfy.com_8081_product_1]: http://product.gblfy.com:8081/product/1
[watermark_type_ZmFuZ3poZW5naGVpdGk_shadow_10_text_aHR0cHM6Ly9ibG9nLmNzZG4ubmV0L3dlaXhpbl80MDgxNjczOA_size_16_color_FFFFFF_t_70 7]: /images/20220829/90c3b259ac5a47eaaaaf5e5d42949efd.png
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