远程服务调用现已支持负载均衡 默认情况下轮询方式负载

支持断路和降级 不可用的实例将暂时被踢出可用列表 全部实例不可用的时候将降级响应预设内容

src/main/java/com/yingxin/springcloudconsumer/controller/RestApi.java

 package com.yingxin.springcloudconsumer.controller;
 
+import com.yingxin.springcloudconsumer.entity.User;
 import com.yingxin.springcloudconsumer.service.HelloService;
 import org.springframework.web.bind.annotation.GetMapping;
 import org.springframework.web.bind.annotation.RestController;
 
+import java.util.List;
+
 @RestController
 public class RestApi {
 
@@ -17,4 +20,14 @@ public class RestApi {
     public String helloConsumer() {
         return helloService.hello();
     }
+
+    @GetMapping("user")
+    public User userConsumer() {
+        return helloService.getUser();
+    }
+
+    @GetMapping("users")
+    public List<User> usersConsumer() {
+        return helloService.getUsers();
+    }
 }

src/main/java/com/yingxin/springcloudconsumer/entity/User.java

+package com.yingxin.springcloudconsumer.entity;
+
+public class User {
+
+    private String id;
+    private String name;//姓名
+    private Integer age;//年龄
+
+    public User() {
+    }
+
+    public User(String id, String name, Integer age) {
+        this.id = id;
+        this.name = name;
+        this.age = age;
+    }
+
+    public String getId() {
+        return id;
+    }
+
+    public void setId(String id) {
+        this.id = id;
+    }
+
+    public String getName() {
+        return name;
+    }
+
+    public void setName(String name) {
+        this.name = name;
+    }
+
+    public Integer getAge() {
+        return age;
+    }
+
+    public void setAge(Integer age) {
+        this.age = age;
+    }
+}

src/main/java/com/yingxin/springcloudconsumer/service/HelloFallBack.java

+package com.yingxin.springcloudconsumer.service;
+
+import com.yingxin.springcloudconsumer.entity.User;
+import org.springframework.stereotype.Component;
+
+import java.util.List;
+
+@Component
+public class HelloFallBack implements HelloService {
+    @Override
+    public String hello() {
+        return "service error";
+    }
+
+    @Override
+    public User getUser() {
+        return new User();
+    }
+
+    @Override
+    public List<User> getUsers() {
+        return null;
+    }
+}

src/main/java/com/yingxin/springcloudconsumer/service/HelloService.java

 package com.yingxin.springcloudconsumer.service;
 
+import com.yingxin.springcloudconsumer.entity.User;
 import org.springframework.cloud.openfeign.FeignClient;
 import org.springframework.web.bind.annotation.GetMapping;
 
-@FeignClient("spring-cloud-server-HelloWorld")
+import java.util.List;
+
+@FeignClient(name = "spring-cloud-server-HelloWorld", fallback = HelloFallBack.class)
 public interface HelloService {
 
     @GetMapping("hello")
     String hello();
+
+    @GetMapping("exampleforget")
+    User getUser();
+
+    @GetMapping("queryUserList")
+    List<User> getUsers();
 }

src/main/resources/application.properties

 server.port=9000
 spring.application.name=consumer
-eureka.client.service-url.defaultZone=http://localhost:8761/eureka/
+eureka.client.service-url.defaultZone=http://localhost:8761/eureka/
\ No newline at end of file
+feign.hystrix.enabled=true
\ No newline at end of file