消费者模块调用提供者集群报错

报错如下：

This application has no explicit mapping for /error, so you are seeing this as a fallback.

Tue May 11 23:40:56 CST 2021
There was an unexpected error (type=Internal Server Error, status=500).
No instances available for SPRINGCLOUD-PRODUCT-PROVIDERSproduct
java.lang.IllegalStateException: No instances available for SPRINGCLOUD-PRODUCT-PROVIDERSproduct
    at org.springframework.cloud.netflix.ribbon.RibbonLoadBalancerClient.execute(RibbonLoadBalancerClient.java:119)
    at org.springframework.cloud.netflix.ribbon.RibbonLoadBalancerClient.execute(RibbonLoadBalancerClient.java:99)
    at org.springframework.cloud.client.loadbalancer.LoadBalancerInterceptor.intercept(LoadBalancerInterceptor.java:58)
    at org.springframework.http.client.InterceptingClientHttpRequest$InterceptingRequestExecution.execute(InterceptingClientHttpRequest.java:93)
    at org.springframework.http.client.InterceptingClientHttpRequest.executeInternal(InterceptingClientHttpRequest.java:77)
    at org.springframework.http.client.AbstractBufferingClientHttpRequest.executeInternal(AbstractBufferingClientHttpRequest.java:48)
    at org.springframework.http.client.AbstractClientHttpRequest.execute(AbstractClientHttpRequest.java:53)
    at org.springframework.web.client.RestTemplate.doExecute(RestTemplate.java:742)

在消费者controller里面retemplte调用地址有单机版localhost加端口换成了服务名

 原因是粗心，url后面没有带/