Eureka配置中心

            org.springframework.cloud
            spring-cloud-starter-netflix-eureka-server
        

@EnableEurekaServer 触发eureka服务器的自动配置

spring:
  application:
    name: eureka-server
server:
  port: 2001
eureka:
  server:
    # 禁用自我保护模式
    enable-self-preservation: false
  instance:
    hostname: eureka1
  client:
    register-with-eureka: false #不向自身注册
    fetch-registry: false #不从自身拉取注册信息

eureka:
  instance:
    hostname: eureka1
  client:
    register-with-eureka: true
    fetch-registry: true
    service-url:
      defaultZone: http://eureka2:2002/eureka

eureka:
  instance:
    hostname: eureka2
  client:
    register-with-eureka: true
    fetch-registry: true
    service-url:
      defaultZone: http://eureka1:2001/eureka

设置两个：
–spring.profiles.active=eureka1 --server.port=2001
–spring.profiles.active=eureka2 --server.port=2002