------------------客户端controller层---------------------

@RestController

public class ClientFeignController {

	@Autowired

	private ProductFeignInterface productFeignInterface;

	@GetMapping("/msg")

	public String msg() {

		String msg = productFeignInterface.getMsg();

		return msg;

	}

}

-----------------客户端feign调用的接口-----------------------

/**

 * name:被调用的服务名称

 */

@FeignClient(name = "product")

public interface ProductFeignInterface {

	/**

	 * 根据getMapping匹配接口，与方法名无关

	 * @return

	 */

	@GetMapping("/product/getMsg")

	public String getMsg();

}

------------------服务端接口-----------------------------------

@RestController

public class ServerController {

	@GetMapping("/product/getMsg")

	public String msg() {

		return "this is product' msg 1";

	}

}
--------------------------------------------------------------
注：在客户端启动类上添加 @EnableFeignClients