1搭建四个项目

一个eureka注册中心
一个Template服务
和两个普通服务

2 搭建一个eureka注册中心服务

#配置文件
server:
  port: 8090
spring:
  application:
   name: server

eureka:
  instance:
    hostname: localhost
  client:
    fetch-registry: false
    register-with-eureka: false
  server:
    enable-self-preservation: false

3 搭建Template服务

新建一个template配置类

@Configuration
public class ConfigBaen
{  
    @Bean
   @LoadBalanced//开启负债均衡
 public RestTemplate getrestTemplate()
 {
     return new RestTemplate();
 }
}

新增一个controller

@RestController
public class Controller
{
    @Autowired
    private RestTemplate restTemplate;
    @RequestMapping("getClientstring")
    public String Getstring()
    {
       return restTemplate.postForObject("http://client2/test1","",String.class);
    }
}

配置文件

server:
  port: 8091
spring:
  application:
   name: client1
eureka:
  client:
    register-with-eureka: true
    fetch-registry: true
    service-url:
      defaultZone: http://localhost:8090/eureka/

4 搭建微服务
微服务2

微服务2 controller

微服务2 配置文件

server:
  port: 8092
spring:
  application:
   name: client2
eureka:
  client:
    register-with-eureka: true
    fetch-registry: true
    service-url:
      defaultZone: http://localhost:8090/eureka/

微服务3

微服务3 controller

微服务3 配置文件

server:
  port: 8093
spring:
  application:
    name: client2
eureka:
  client:
    register-with-eureka: true
    fetch-registry: true
    service-url:
      defaultZone: http://localhost:8090/eureka/

5 测试负载均衡
负载均衡通过template默认为轮回访问微服务