springcloud-config

SpringCloud-Config

spring cloud config 分为服务端和客户端两部分。

• 服务端：Config Server，配置中心。 独立的微服务应用，用来连接配置服务器并为客户端提供获取配置信息，一般从git上读取配置
• 客户端：Client 连接服务端，获取配置，管理应用资源，在启动时从配置中心加载配置

git配置中心

• application.yml 服务端

  spring:
    profiles:
      active: dev
  ---
  spring:
    profiles: dev
    application:
      name: springcloud-config-dev
  ---
  spring:
    profiles: test
    application:
      name: springcloud-config-test
  

• config-client.yml 客户端

  spring:
    profiles:
      active: dev
  ---
  #Eureka配置，服务注册到哪里
  server:
    port: 8201
  eureka:
    client:
      service-url:
        defaultZone: http://eureka7003.com:7003/eureka/,http://eureka7002.com:7002/eureka/,http://eureka7001.com:7001/eureka/
  
  #spring配置
  spring:
    profiles: dev
    application:
      name: springcloud-provider-dept
      
  ---
  #Eureka配置，服务注册到哪里
  server:
    port: 8202
  eureka:
    client:
      service-url:
        defaultZone: http://eureka7003.com:7003/eureka/,http://eureka7002.com:7002/eureka/,http://eureka7001.com:7001/eureka/
  
  #spring配置
  spring:
    profiles: test
    application:
      name: springcloud-provider-dept
  

服务端

• 依赖

  <dependencies>
  
      <dependency>
          <groupId>org.springframework.boot</groupId>
          <artifactId>spring-boot-starter-web</artifactId>
      </dependency>
  
      <!-- https://mvnrepository.com/artifact/org.springframework.cloud/spring-cloud-config-server -->
      <dependency>
          <groupId>org.springframework.cloud</groupId>
          <artifactId>spring-cloud-config-server</artifactId>
          <version>2.1.1.RELEASE</version>
      </dependency>
  
      <!--eureka完善监控信息-->
      <dependency>
          <groupId>org.springframework.boot</groupId>
          <artifactId>spring-boot-starter-actuator</artifactId>
      </dependency>
  
  </dependencies>
  

• yml配置

  server:
    port: 3344
  spring:
    application:
      name: springcloud-config-server
    #连接远程仓库
    cloud:
      config:
        server:
          git:
            uri: https://gitee.com/jin_pengyong/springcloud-config.git #git上项目路径，http，非ssh
  

• 启动类

  @SpringBootApplication
  @EnableConfigServer
  public class Config_server_3344 {
      public static void main(String[] args) {
          SpringApplication.run(Config_server_3344.class, args);
      }
  }
  

测试：访问http://localhost:3344/master/application-dev.yml读取application.yml配置中dev环境

http://localhost:3344/master/config-client-dev.yml读取config-client.yml配置文件中dev环境

客户端

• 依赖

  <dependencies>
      <dependency>
          <groupId>org.springframework.boot</groupId>
          <artifactId>spring-boot-starter-web</artifactId>
      </dependency>
  
      <!-- https://mvnrepository.com/artifact/org.springframework.cloud/spring-cloud-starter-config -->
      <dependency>
          <groupId>org.springframework.cloud</groupId>
          <artifactId>spring-cloud-starter-config</artifactId>
          <version>2.1.3.RELEASE</version>
      </dependency>
  
      <!--eureka完善监控信息-->
      <dependency>
          <groupId>org.springframework.boot</groupId>
          <artifactId>spring-boot-starter-actuator</artifactId>
      </dependency>
  </dependencies>
  

• yml配置

  • application.yml：用户级配置

    #用户级配置
    spring:
      application:
        name: springcloud-config-client-3355
    

  • bootstrap：系统级配置

    #系统级配置
    spring:
      cloud:
        config:
          uri: http://localhost:3344
          name: config-client #需要从git上读取的资源名称，不要后缀
          profile: dev #环境
          label: master #分支
    

• 测试

  • 启动类

    @SpringBootApplication
    public class ConfigClient_3355 {
        public static void main(String[] args) {
            SpringApplication.run(ConfigClient_3355.class, args);
        }
    }
    

  • controller

  @RestController
  public class ConfigClientController {
  
      //这里读取的都是远程git服务器上
      @Value("${spring.application.name}")
      private String applicationName;
  
      @Value("${eureka.client.service-url.defaultZone}")
      private String eurekaServer;
  
      @Value("${server.port}")
      private String port;
  
      @RequestMapping("config")
      public String getConfig() {
          return "applicationName==>" + applicationName + ",eurekaServer==>" + eurekaServer + ",port==>" + port;
      }
  }
  

• 访问：http://localhost:8201/config通过获取信息，此时修改bootstrap.yml中profile为test，就可以通过8202端口访问