注解属性值引用properties

whatsmars-spring-cloud/whatsmars-cloud-consumer/src/main/java/org/hongxi/whatsmars/cloud/consumer/feign/DemoFeign.java

@@ -7,7 +7,7 @@ import org.springframework.web.bind.annotation.RequestParam;
 /**
  * Created by shenhongxi on 2017/9/14.
  */
-@FeignClient(value = "demo-provider", fallback = DemoHystrix.class)
+@FeignClient(value = "${provider.name}", fallback = DemoHystrix.class)
 public interface DemoFeign {
     @RequestMapping("/hello")
     String hello(@RequestParam(name = "name") String name); // 此处必须有RequestParam

whatsmars-spring-cloud/whatsmars-cloud-consumer/src/main/java/org/hongxi/whatsmars/cloud/consumer/rpc/DemoRpc.java

@@ -2,6 +2,7 @@ package org.hongxi.whatsmars.cloud.consumer.rpc;
 
 import com.netflix.hystrix.contrib.javanica.annotation.HystrixCommand;
 import org.springframework.beans.factory.annotation.Autowired;
+import org.springframework.core.env.Environment;
 import org.springframework.stereotype.Component;
 import org.springframework.web.client.RestTemplate;
 
@@ -13,10 +14,12 @@ public class DemoRpc {
 
     @Autowired
     private RestTemplate restTemplate;
+    @Autowired
+    private Environment env;
 
     @HystrixCommand(fallbackMethod = "helloFallback")
     public String hello(String name) {
-        return restTemplate.getForObject("http://demo-provider/hello?name=" + name, String.class);
+        return restTemplate.getForObject("http://" + env.getProperty("provider.name") + "/hello?name=" + name, String.class);
     }
 
     public String helloFallback(String name) {

whatsmars-spring-cloud/whatsmars-cloud-consumer/src/main/resources/application.yml

@@ -2,6 +2,9 @@ spring:
   profiles:
     active: dev
 
+provider:
+  name: demo-provider
+
 ---
 eureka:
   client: