Spring Cloud一：eureka服务注册中心集群搭建

一，单节点搭建

1,新建model，勾选EurekaServer

2，编写配置文件

#服务端口
server:
  port: 7001
#服务名称
spring:
  application:
    name: EurekaServer

eureka:
  client:
    #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
    #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
    #设置服务注册中心的URL，用于client和server端交流
    service-url:
      defaultZone: http://euk-server1:7001/eureka
  #eureka主机名称，如果单节点的话可以用localhost，如果是多节点的话需要配置一下系统hosts文件。
  instance:
    hostname: localhost

3，开启EurekaServer注解

package com.bobo.eurekaserver;

import org.springframework.boot.SpringApplication;
import org.springframework.boot.autoconfigure.SpringBootApplication;
import org.springframework.cloud.netflix.eureka.server.EnableEurekaServer;

@SpringBootApplication
@EnableEurekaServer
public class EurekaServerApplication {
    
    

    public static void main(String[] args) {
    
    
        SpringApplication.run(EurekaServerApplication.class, args);
    }

}

4，效果

二，双节点搭建

1，修改hosts文件，添加几个主机名

2，配置文件

spring:
  application:
    name: EurekaServer
eureka:
  client:
    fetch-registry: true
    register-with-eureka: true

---
server:
  port: 7001
eureka:
  client:
    service-url:
      defaultZone: http://euk-server2:7002/eureka
  instance:
    hostname: euk-server1
spring:
  profiles: 7001
---
server:
  port: 7002
eureka:
  client:
    service-url:
      defaultZone: http://euk-server1:7001/eureka
  instance:
    hostname: euk-server2
spring:
  profiles: 7002

3，运行环境

4，效果

三，三节点搭建

1，配置文件

spring:
  application:
    name: EurekaServer
eureka:
  client:
    fetch-registry: true
    register-with-eureka: true
---
server:
  port: 7001
eureka:
  instance:
    hostname: euk-server1
  client:
    service-url:
      defaultZone: http://euk-server2:7002/eureka/,http://euk-server3:7003/eureka/
spring:
  profiles: 7001
---
server:
  port: 7002
eureka:
  instance:
    hostname: euk-server2
  client:
    service-url:
      defaultZone: http://euk-server1:7001/eureka/,http://euk-server3:7003/eureka/
spring:
  profiles: 7002
---
server:
  port: 7003
eureka:
  instance:
    hostname: euk-server3
  client:
    service-url:
      defaultZone: http://euk-server1:7001/eureka/,http://euk-server2:7002/eureka/
spring:
  profiles: 7003

2，效果

四，客户端搭建

1，新建model，引入Eureka Discovery Client模块

2，导入web jar包

3，配置文件

spring:
  application:
    name: EurekaClient
server:
  port: 7004
eureka:
  instance:
    hostname: euk-client1
  client:
    service-url:
      defaultZone: http://euk-server1:7001/eureka/,http://euk-server2:7002/eureka/,http://euk-server3:7003/eureka/

4，效果