content: /*
   * Copyright (C) 2018 the original author or authors.
   *
   * Licensed under the Apache License, Version 2.0 (the "License");
   * you may not use this file except in compliance with the License.
   * You may obtain a copy of the License at
   *
   *      https://www.apache.org/licenses/LICENSE-2.0
   *
   * Unless required by applicable law or agreed to in writing, software
   * distributed under the License is distributed on an "AS IS" BASIS,
   * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
   * See the License for the specific language governing permissions and
   * limitations under the License.
   */
  
  package com.alibaba.demo;
  
  import javax.servlet.http.HttpServletRequest;
  
  import org.springframework.beans.factory.annotation.Autowired;
  import org.springframework.boot.SpringApplication;
  import org.springframework.boot.autoconfigure.SpringBootApplication;
  import org.springframework.cloud.client.loadbalancer.LoadBalanced;
  import org.springframework.context.annotation.Bean;
  import org.springframework.web.bind.annotation.GetMapping;
  import org.springframework.web.bind.annotation.RestController;
  import org.springframework.web.client.RestTemplate;
  
  /**
   * @author <a href="mailto:fangjian0423@gmail.com">Jim</a>
   */
  @SpringBootApplication
  public class BApplication {
  
      public static void main(String[] args) {
          SpringApplication.run(BApplication.class, args);
      }
  
      @Bean
      @LoadBalanced
      RestTemplate restTemplate() {
          return new RestTemplate();
      }
  
      @RestController
      class AController {
  
          @Autowired
          RestTemplate restTemplate;
  
          @GetMapping("/b")
          public String a(HttpServletRequest request) {
              //return "B[" + request.getLocalAddr() + "]" + " -> " +
              //    restTemplate.getForObject("http://sc-C/c", String.class);
              return "B[" + request.getLocalAddr() + "]";
          }
      }
  
  }
  