springcloud feign

whatsmars-spring-cloud/whatsmars-springcloud-consumer/pom.xml

@@ -28,6 +28,11 @@
             <artifactId>spring-cloud-starter-eureka-server</artifactId>
         </dependency>
 
+        <dependency>
+            <groupId>org.springframework.cloud</groupId>
+            <artifactId>spring-cloud-starter-feign</artifactId>
+        </dependency>
+
         <!--<dependency>
             <groupId>org.springframework.cloud</groupId>
             <artifactId>spring-cloud-starter-config</artifactId>

whatsmars-spring-cloud/whatsmars-springcloud-consumer/src/main/java/com/itlong/whatsmars/springcloud/consumer/ConsumerApplication.java

@@ -4,12 +4,14 @@ import org.springframework.boot.SpringApplication;
 import org.springframework.boot.autoconfigure.SpringBootApplication;
 import org.springframework.cloud.client.discovery.EnableDiscoveryClient;
 import org.springframework.cloud.client.loadbalancer.LoadBalanced;
+import org.springframework.cloud.netflix.feign.EnableFeignClients;
 import org.springframework.context.annotation.Bean;
 import org.springframework.web.client.RestTemplate;
 
 /**
  * Created by shenhongxi on 2017/9/14.
  */
+@EnableFeignClients
 @EnableDiscoveryClient
 @SpringBootApplication
 public class ConsumerApplication {

whatsmars-spring-cloud/whatsmars-springcloud-consumer/src/main/java/com/itlong/whatsmars/springcloud/consumer/controller/DemoController.java

 package com.itlong.whatsmars.springcloud.consumer.controller;
 
+import com.itlong.whatsmars.springcloud.consumer.feign.DemoFeign;
 import org.springframework.beans.factory.annotation.Autowired;
 import org.springframework.beans.factory.annotation.Value;
 import org.springframework.web.bind.annotation.RequestMapping;
@@ -17,8 +18,16 @@ public class DemoController {
 //    @Value("${foo}")
 //    private String foo;
 
+    @Autowired
+    private DemoFeign demoFeign;
+
     @RequestMapping("/hello")
     public String hello(String name) {
         return restTemplate.getForObject("http://demo-provider/hello?name=" + name, String.class);
     }
+
+    @RequestMapping("/hi")
+    public String hi(String name) {
+        return demoFeign.hello(name);
+    }
 }

whatsmars-spring-cloud/whatsmars-springcloud-consumer/src/main/java/com/itlong/whatsmars/springcloud/consumer/feign/DemoFeign.java

+package com.itlong.whatsmars.springcloud.consumer.feign;
+
+import org.springframework.cloud.netflix.feign.FeignClient;
+import org.springframework.web.bind.annotation.RequestMapping;
+import org.springframework.web.bind.annotation.RequestParam;
+
+/**
+ * Created by shenhongxi on 2017/9/14.
+ */
+@FeignClient("demo-provider")
+public interface DemoFeign {
+    @RequestMapping("/hello")
+    String hello(@RequestParam(name = "name") String name); // 此处必须有RequestParam
+}