环境

SpringCloud:Finchley.RELEASE

SpringBoot：2.0.0.RELEASE

JDK：1.8

1. Config Server高可用

借助Eureka把Config Server注册进去，形成Config Server集群，Config client通过微服务名称去请求Server，小实现高可用

1.1 Config Server改造

1. 增加eureka client的依赖配置

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

2. 配置eureka和info

   #配置eureka
   eureka:
     client:
       service-url:
         defaultZone: http://server7001:7001/eureka/,http://server7002:7002/eureka/,http://server7003:7003/eureka/
     instance:
       instance-id: ${spring.cloud.client.ip-address}:${server.port}
       prefer-ip-address: true
   
   #解决eureka控制台中的Info页面错误问题
   info:
     app.name: com.xyz.microservice
     build.artifactId: $project.artifactId$ #使用maven内置变量project.artifactId和project.version完成对变量的赋值
     build.version: $project.version$
   

1.2 Config Client改造

1. 增加eureka client依赖

           <!--eureka client-->
           <dependency>
               <groupId>org.springframework.cloud</groupId>
               <artifactId>spring-cloud-starter-netflix-eureka-client</artifactId>
           </dependency>
   
           <!--eurake info页面-->
           <dependency>
               <groupId>org.springframework.boot</groupId>
               <artifactId>spring-boot-starter-actuator</artifactId>
           </dependency>
   

2. 配置eureka和info信息，并修改为通过微服务名称获取配置信息

   spring:
     cloud:
       config:
         name: application   #从github上获取的资源名称，没有yml后缀
         profile: test #访问的配置项
         label: master  #访问的分支
         discovery: # 开启通过微服务名称获取Config Server的信息
           enabled: true
           service-id: microserver-config
   #      uri: http://localhost:5001   #SpringCloud Config Server端的地址
   
   #开启actuator的refresh点
   management:
     endpoint:
     endpoints:
       web:
         exposure:
           include: ["refresh","info"]
   
   #配置eureka
   eureka:
     client:
       service-url:
         defaultZone: http://server7001:7001/eureka/,http://server7002:7002/eureka/,http://server7003:7003/eureka/
     instance:
       instance-id: configclient
       prefer-ip-address: true
   
   #解决eureka控制台中的Info页面错误问题
   info:
     app.name: com.xyz.microservice
     build.artifactId: $project.artifactId$ #使用maven内置变量project.artifactId和project.version完成对变量的赋值
     build.version: $project.version$
   

代码示例-github