ribbon测试出错No instances available for XC-?400报错

一个简单的测试：使用eureka+ribbon访问服务。配置都配好了，实在不知道问题出在哪儿。。。

1.服务端

1.1服务端注解：@EnableEurekaClient

1.2服务端配置

server:
  port: ${PORT:31001}
spring:
  application:
    name: xc-service-manage-cms
eureka:
  client:
    register-with-eureka: true
    fetch-registry: false
    service-url:
      defaultZone: ${EUREKA_SERVER:http://localhost:50101/eureka/}
  instance:
    prefer-ip-address: true
    ip-address: ${IP_ADDRESS:127.0.0.1}
    instance-id: ${spring.application.name} :${server.port}

2.客户端

2.1注解

2.2配置

server:
  port: 31200
spring:
  application:
    name: xc-service-manage-course
eureka:
  client:
    register-with-eureka: true
    fetch-registry: false
    service-url:
      defaultZone: ${EUREKA_SERVER:http://localhost:50101/eureka/}
  instance:
    prefer-ip-address: true
    ip-address: ${IP_ADDRESS:127.0.0.1}
    instance-id: ${spring.application.name} :${server.port}
ribbon:
  MaxAutoRetries: 2
  MaxAutoRetriesNextServer: 3
  OkToRetryOnAllOperations: false
  ConnectTimeout: 5000
  ReadTimeout: 6000

3.Eureka注册中心页面

服务和客户端都注册进去了

4.测试代码

@SpringBootTest(classes = ManageCourseApplication.class)
@RunWith(SpringRunner.class)
public class TestRibbon {
    @Autowired
    RestTemplate restTemplate;
    @Test
    public void test(){
        String serviceId="XC-SERVICE-MANAGE-CMS";
        ResponseEntity<CmsPage> forEntity = restTemplate.getForEntity("http://"+serviceId+"/cms/manage/get/5a754adf6abb500ad05688d9", CmsPage.class);
        CmsPage body = forEntity.getBody();
        System.out.println(body);
    }
}

报错：

java.lang.IllegalStateException: No instances available for XC-SERVICE-MANAGE-CMS

	at org.springframework.cloud.netflix.ribbon.RibbonLoadBalancerClient.execute(RibbonLoadBalancerClient.java:89)
	at org.springframework.cloud.client.loadbalancer.LoadBalancerInterceptor.intercept(LoadBalancerInterceptor.java:55)
	at org.springframework.http.client.InterceptingClientHttpRequest$InterceptingRequestExecution.execute(InterceptingClientHttpRequest.java:92)
	at org.springframework.http.client.InterceptingClientHttpRequest.executeInternal(InterceptingClientHttpRequest.java:76)