使用Spring AsyncRestTemplate對象進行異步請求調用(轉載並非我原創)

使用Spring AsyncRestTemplate對象進行異步請求調用

直接上代碼：

 

package com.mlxs.common.server.asyncrest;

import org.apache.log4j.Logger;
import org.springframework.http.ResponseEntity;
import org.springframework.stereotype.Controller;
import org.springframework.util.concurrent.ListenableFuture;
import org.springframework.util.concurrent.ListenableFutureCallback;
import org.springframework.web.bind.annotation.RequestMapping;
import org.springframework.web.bind.annotation.ResponseBody;
import org.springframework.web.client.AsyncRestTemplate;
import org.springframework.web.client.RestTemplate;

/**
 * Asyncrest: AsyncRestTemplate 異步發生請求測試
 *
 * @author mlxs
 * @since 2016/8/4
 */
@Controller
@RequestMapping("/async")
public class AsyncrestController {
    Logger logger = Logger.getLogger(AsyncrestController.class);

    @RequestMapping("/fivetime")
    @ResponseBody
    public String tenTime(){
        try {
            Thread.sleep(5000);
        } catch (InterruptedException e) {
            e.printStackTrace();
        }
        return "5秒...";
    }

    /**
     * 同步調用
     * @return
     */
    @RequestMapping("/sync")
    @ResponseBody
    public String sync(){
        //同步調用
        RestTemplate template = new RestTemplate();
        String url = "http://localhost:8080/async/fivetime";//休眠5秒的服務
        String forObject = template.getForObject(url, String.class);
        return "同步調用結束, 結果：" + forObject;
    }

    /**
     * 異步調用
     * @return
     */
    @RequestMapping("/async")
    @ResponseBody
    public String async(){
        AsyncRestTemplate template = new AsyncRestTemplate();
        String url = "http://localhost:8080/async/fivetime";//休眠5秒的服務
        //調用完後立即返回（沒有阻塞）
        ListenableFuture<ResponseEntity<String>> forEntity = template.getForEntity(url, String.class);
        //異步調用後的回調函數
        forEntity.addCallback(new ListenableFutureCallback<ResponseEntity<String>>() {
            //調用失敗
            @Override
            public void onFailure(Throwable ex) {
                logger.error("=====rest response faliure======");
            }
            //調用成功
            @Override
            public void onSuccess(ResponseEntity<String> result) {
                logger.info("--->async rest response success----, result = "+result.getBody());
            }
        });
        return "異步調用結束";
    }


}

 

同步請求：

 

異步請求：