2019-08-27/spring cloud bus 自动刷新

以spring cloud Greenwich.SR2和spring boot 2.1.5.RELEASE 版本举例。假设本地已经安装了RabitMQ。
config server的pom:

     <dependency>
            <groupId>org.springframework.cloud</groupId>
            <artifactId>spring-cloud-config-server</artifactId>
        </dependency>
        <dependency>
            <groupId>org.springframework.cloud</groupId>
            <artifactId>spring-cloud-starter-netflix-eureka-client</artifactId>
        </dependency>

        <dependency>
            <groupId>org.springframework.cloud</groupId>
            <artifactId>spring-cloud-starter-bus-amqp</artifactId>
        </dependency>

congfig server的application.yml:

server:
  port: 8888

eureka:
  client:
    service-url:
      # 将自己注册到eureka server的地址
      defaultZone: http://localhost:8761/eureka/

spring:
  application:
    name: config
  cloud:
    config:
      server:
        git:
          uri: https://github.com/fantasyWJP/wxdc_config_study_original.git
          username: xxx
          password: xxx
    bus:
      refresh:
        enabled: true

management:
  endpoints:
    web:
      exposure:
        include: bus-refresh

其余节点的pom:

         <dependency>
            <groupId>org.springframework.boot</groupId>
            <artifactId>spring-boot-starter-web</artifactId>
        </dependency>
        <dependency>
            <groupId>org.springframework.cloud</groupId>
            <artifactId>spring-cloud-starter-netflix-eureka-client</artifactId>
        </dependency>

        <dependency>
            <groupId>org.springframework.cloud</groupId>
            <artifactId>spring-cloud-config-client</artifactId>
        </dependency>

        <dependency>
            <groupId>org.springframework.cloud</groupId>
            <artifactId>spring-cloud-starter-bus-amqp</artifactId>
        </dependency>

其余节点的bootstrap.yml配置：

server:
  port: 8763

eureka:
  client:
    service-url:
      # 将自己注册到eureka server的地址
      defaultZone: http://localhost:8761/eureka/

spring:
  application:
    # 应用的名字
    name: order
  cloud:
    config:
      discovery:
        enabled: true
        service-id: config
      profile: dev

如果是远端的RabbitMQ，各个节点，包括config server都要加入以下配置：

spring:
  rabbitmq:
    host: xxx
    port: 5672
    username: xxx
    password: xxx

各个节点的环境变量或者配置类使用了注解@RefreshScope
刷新节点，使用postman发送post请求：
http://127.0.0.1:8888/actuator/bus-refresh