[大数据]Eureka集群搭建（三台）

项目背景：springboot2.6.2 springcloud 2021.0.0

??java代码：CloudEurekaApplication

application.yml

spring:
    application:
      name: eureka
eureka:
  client:
    #是否将自己注册到Eureka Server,默认为true，由于当前就是server，故而设置成false，表明该服务不会向eureka注册自己的信息
    register-with-eureka: false
    #是否从eureka server获取注册信息，由于单节点，不需要同步其他节点数据，用false
    fetch-registry: false
    #设置服务注册中心的URL，用于client和server端交流
    service-url:
      defaultZone: http://localhost:7900/eureka/,http://localhost:7901/eureka/,http://localhost:7902/eureka/

---
server:
  port: 7900
eureka:
  instance:
    hostname: eureka-7900
spring:
  config:
    activate:
      on-profile: 7900

---
server:
  port: 7901
eureka:
  instance:
    hostname: eureka-7901
spring:
  config:
    activate:
      on-profile: 7901

---
server:
  port: 7902
eureka:
  instance:
    hostname: eureka-7902
spring:
  config:
    activate:
      on-profile: 7902

springboo启动配置

红框部分与application.yml文件中的*on-profile: 7900对应

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启动三个服务即可

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启动成功

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