1、添加eureka依赖
2、配置image.png

  1. spring:
  2.   application:
  3.     name: eureka-server
  5. server:
  6.   port: 2001
  8. eureka:
  9.   server:
  10.     #开发调试期间禁用保护模式
  11.     enable-self-preservation: false
  12.   instance:
  13.     # 主机名，集群中区分不同服务器
  14.     hostname: eureka1
  15.   client:
  16.     #单机配置，不向自己注册，不从自己拉取
  17.     register-with-eureka: false
  18.     fetch-registry: false

3eureka主程序

  • 添加 @EnableEurekaServer

    4.1 添加 ![image.png](https://cdn.nlark.com/yuque/0/2021/png/2961789/1610962333774-3022dd63-8b14-4925-9ff5-d39a2bb6da69.png#align=left&display=inline&height=17&margin=%5Bobject%20Object%5D&name=image.png&originHeight=17&originWidth=224&size=6836&status=done&style=none&width=224) 此步骤在其他服务布置

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

    4.2在yml添加如下配置内容

    eureka:
client:
  service-url:
    defaultZone: http://eureka1:2001/eureka

    5.1其他服务改端口号

    image.png

    6、eureka服务中创建eureka1和eureka2.yml（启动两个eureka服务）

    image.png
    eureka1：
    eureka:
instance:
  hostname: eureka1
client:
  register-with-eureka: true  #profile的配置会覆盖公用配置
  fetch-registry: true        #profile的配置会覆盖公用配置
  service-url:
    defaultZone: http://eureka2:2002/eureka  #eureka1启动时向eureka2注册
    eureka2：
    eureka:
instance:
  hostname: eureka2
client:
  register-with-eureka: true  #profile的配置会覆盖公用配置
  fetch-registry: true        #profile的配置会覆盖公用配置
  service-url:
    defaultZone: http://eureka1:2001/eureka  #eureka2启动时向eureka1注册

    7、eureka改端口（启动两个eureka服务）

    —spring.profiles.active=eureka1 —server.port=2001
    —spring.profiles.active=eureka2 —server.port=2002

image.png

8eureka客户端注册时，向两个服务器注册

修改以下微服务

  • sp02-itemservice
  • sp03-userservice
  • sp04-orderservice ``` eureka: client: service-url:
    defaultZone: http://eureka1:2001/eureka, http://eureka2:2002/eureka

```

当一个 eureka 服务宕机时，仍可以连接另一个 eureka 服务

image.png