fegin远程调用

<!-- feign客户端依赖 -->
	 <dependency>
          <groupId>org.springframework.cloud</groupId>
          <artifactId>spring-cloud-starter-openfeign</artifactId>
          <version>2.2.2.RELEASE</version>
     </dependency>
	 
！！依赖的版本必须和spring-cloud-starter-alibaba-nacos-discovery的版本一致 

@FeignClient("userservice")

public interface userClient {

	@RequestMapping("/user/{id}")
	User findById(@PathVariable("id") long id);
	
}