springcloud服务注册中心Eureka

启动一个服务注册中心，只需要一个注解@EnableEurekaServer

package com.dalingjia.eurekaserver;
import org.springframework.boot.SpringApplication;
import org.springframework.boot.autoconfigure.SpringBootApplication;
import org.springframework.cloud.netflix.eureka.server.EnableEurekaServer;
/**
 * 启动一个服务注册中心，只需要一个注解@EnableEurekaServer
 */
@EnableEurekaServer
@SpringBootApplication
public class EurekaServerApplication {
    public static void main(String[] args) {
        SpringApplication.run(EurekaServerApplication.class, args);
    }
}

配置文件如下，表明自己是一个服务注册中心：

server:
  port: 8761

eureka:
  instance:
    hostname: localhost
  client:
    registerWithEureka: false
    fetchRegistry: false
    serviceUrl:
      defaultZone: http://${eureka.instance.hostname}:${server.port}/eureka/

Eureka客服端，通过注解@EnableEurekaClient表明自己是一个eurekaClient:

/**
 * 通过注解@EnableEurekaClient 表明自己是一个eurekaclient.
 */
@SpringBootApplication
@EnableEurekaClient
@RestController
@EnableHystrix
@EnableHystrixDashboard
public class ServiceHiApplication {
    public static void main(String[] args) {
        SpringApplication.run(ServiceHiApplication.class, args);
    }
}

客户端配置：

eureka:
  client:
    serviceUrl:
      defaultZone: http://localhost:8761/eureka/
server:
  port: 8762
spring:
  application:
    name: service-hi

启动服务端和客户端，访问localhost:8761,可以看到注册到eureka的当前实例：