feign

pom.xml

@@ -32,6 +32,10 @@
             <groupId>org.springframework.cloud</groupId>
             <artifactId>spring-cloud-starter-alibaba-nacos-discovery</artifactId>
         </dependency>
+        <dependency>
+            <groupId>org.springframework.cloud</groupId>
+            <artifactId>spring-cloud-starter-openfeign</artifactId>
+        </dependency>
         <dependency>
             <groupId>org.projectlombok</groupId>
             <artifactId>lombok</artifactId>

src/main/java/com/xcloud/galaxy/movieservice/MovieServiceApplication.java

@@ -3,9 +3,11 @@ package com.xcloud.galaxy.movieservice;
 import org.springframework.boot.SpringApplication;
 import org.springframework.boot.autoconfigure.SpringBootApplication;
 import org.springframework.cloud.client.discovery.EnableDiscoveryClient;
+import org.springframework.cloud.openfeign.EnableFeignClients;
 
 @SpringBootApplication
 @EnableDiscoveryClient
+@EnableFeignClients
 public class MovieServiceApplication {
 
     public static void main(String[] args) {

src/main/java/com/xcloud/galaxy/movieservice/config/WebConfig.java

-package com.xcloud.galaxy.movieservice.config;
-
-import org.springframework.cloud.client.loadbalancer.LoadBalanced;
-import org.springframework.context.annotation.Bean;
-import org.springframework.context.annotation.Configuration;
-import org.springframework.web.client.RestTemplate;
-
-/**
- * @Description
- * @Author wangjian
- * @Date 2019-07-09 15:55
- */
-@Configuration
-public class WebConfig {
-
-
-    @Bean
-    @LoadBalanced
-    RestTemplate restTemplate() {
-        return new RestTemplate();
-    }
-
-}

src/main/java/com/xcloud/galaxy/movieservice/controller/MovieController.java

 package com.xcloud.galaxy.movieservice.controller;
 
+import com.xcloud.galaxy.movieservice.feign.UserServiceFeignClient;
 import com.xcloud.galaxy.userservice.entity.User;
 import lombok.extern.slf4j.Slf4j;
 import org.springframework.beans.factory.annotation.Autowired;
-import org.springframework.cloud.client.ServiceInstance;
-import org.springframework.cloud.client.discovery.DiscoveryClient;
 import org.springframework.web.bind.annotation.GetMapping;
 import org.springframework.web.bind.annotation.RequestMapping;
 import org.springframework.web.bind.annotation.RestController;
-import org.springframework.web.client.RestTemplate;
 
 import java.util.List;
-import java.util.concurrent.ThreadLocalRandom;
-import java.util.stream.Collectors;
 
 /**
  * @Description
@@ -24,67 +20,18 @@ import java.util.stream.Collectors;
 @Slf4j
 public class MovieController {
 
-
-    @Autowired
-    private RestTemplate restTemplate;
-
     @Autowired
-    private DiscoveryClient discoveryClient;
-
+    private UserServiceFeignClient userServiceFeignClient;
 
     @GetMapping(value = "/index")
     public User index() {
-        User user = restTemplate.getForObject("http://user-service/users/1", User.class);
+        User user = userServiceFeignClient.findTop(1);
         return user;
     }
 
-// @formatter:off
-    /**
-     *
-     *
-     * [
-     *   {
-     *     "serviceId": "user-service",
-     *     "host": "192.168.6.239",
-     *     "port": 8071,
-     *     "secure": false,
-     *     "metadata": {
-     *       "nacos.instanceId": "192.168.6.239#8071#DEFAULT#DEFAULT_GROUP@@user-service",
-     *       "nacos.weight": "1.0",
-     *       "nacos.cluster": "DEFAULT",
-     *       "nacos.healthy": "true",
-     *       "preserved.register.source": "SPRING_CLOUD"
-     *     },
-     *     "uri": "http://192.168.6.239:8071",
-     *     "scheme": null,
-     *     "instanceId": null
-     *   },
-     *   {
-     *     "serviceId": "user-service",
-     *     "host": "192.168.6.239",
-     *     "port": 8070,
-     *     "secure": false,
-     *     "metadata": {
-     *       "nacos.instanceId": "192.168.6.239#8070#DEFAULT#DEFAULT_GROUP@@user-service",
-     *       "nacos.weight": "1.0",
-     *       "nacos.cluster": "DEFAULT",
-     *       "nacos.healthy": "true",
-     *       "preserved.register.source": "SPRING_CLOUD"
-     *     },
-     *     "uri": "http://192.168.6.239:8070",
-     *     "scheme": null,
-     *     "instanceId": null
-     *   }
-     * ]
-     *
-     * @return
-     *
-     */
-// @formatter:on
-    @GetMapping(value = "/discovery")
-    public List<ServiceInstance> discovery() {
-        List<ServiceInstance> instances = discoveryClient.getInstances("user-service");
-        return instances;
+    @GetMapping(value = "/list")
+    public List<User> list() {
+        return userServiceFeignClient.list();
     }
 
 }

src/main/java/com/xcloud/galaxy/movieservice/feign/UserServiceFeignClient.java

+package com.xcloud.galaxy.movieservice.feign;
+
+import com.xcloud.galaxy.userservice.entity.User;
+import org.springframework.cloud.openfeign.FeignClient;
+import org.springframework.web.bind.annotation.GetMapping;
+import org.springframework.web.bind.annotation.PathVariable;
+
+import java.util.List;
+
+/**
+ * @Description
+ * @Author wangjian
+ * @Date 2019-07-10 12:33
+ */
+@FeignClient(name = "user-service")
+public interface UserServiceFeignClient {
+
+
+    @GetMapping(value = "/users")
+    List<User> list();
+
+    @GetMapping(value = "/users/{id}")
+    User findTop(@PathVariable(value = "id") Integer id);
+
+}

src/main/resources/application.yml

@@ -11,4 +11,13 @@ spring:
 ribbon:
   eager-load:
     enabled: true
-    clients: user-service
\ No newline at end of file
+    clients: user-service
+logging:
+  level:
+    com.xcloud.galaxy.movieservice.feign: debug
+
+feign:
+  client:
+    config:
+      user-service:
+        loggerLevel: full