java使用java.util.concurrent.CountDownLatch 同时处理多个请求，多线程处理http请求

你的名字 2022-07-15 05:38 237阅读 0赞

使用java 线程计数器进行多个HTTP请求同时调用处理

import java.util.concurrent.CountDownLatch;

public  void executeUserList(Date startDate , Date endDate)\{

logger.info("定时任务：aa 任务--->开始" + sd.format(new Date()));  
  
        long start1 = System.currentTimeMillis();  
        String start = sd1.format(startDate);  
        String end = sd1.format(endDate);  
        start = StringUtil.getAddOneTime(start);  
        end = StringUtil.getAddOneTime(end);  
  
        try \{  
            ThreadPoolExecutor  executor = new ScheduledThreadPoolExecutor(2);  
            CountDownLatch countDownLatch = new CountDownLatch(2);  
            for (int i = 0; i < 2; i++) \{  
                UserInfoRunnable userInfoRunnable = new AVBetRunnable(countDownLatch,URIUtil.encodeQuery(start), URIUtil.encodeQuery(end), avBetsMapper,i+1);  
                executor.execute(avBetRunnable);  
            \}  
            countDownLatch.await();  
            executor.shutdown();  
  
        \} catch (Exception e) \{  
            e.printStackTrace();  
        \}  
        long end1 = System.currentTimeMillis();  
  
        logger.info("定时任务： aa 任务--->结束" + sd.format(new Date())+" 定时插入耗时："+(end1-start1));

package com.cc.dd.service.impl;  
import org.apache.log4j.Logger;  
import java.text.DateFormat;  
import java.text.ParseException;  
import java.text.SimpleDateFormat;  
import java.util.ArrayList;  
import java.util.Date;  
import java.util.List;  
import java.util.Map;  
import java.util.concurrent.CountDownLatch;  
  
public class UserInfoRunnable  implements Runnable \{  
  
    private static final String date\_format = "yyyy-MM-dd HH:mm:ss";  
    private static ThreadLocal<DateFormat> threadLocal = new ThreadLocal<DateFormat>();  
    private String startDate ;  
    private String endDate ;  
    private CountDownLatch countDownLatch ;  
      
    public UserInfoRunnable(CountDownLatch countDownLatch,String startDate, String endDate)\{  
        this.startDate  = startDate ;  
        this.endDate = endDate ;  
        this.countDownLatch=countDownLatch;  
    \}  
  
    @Override  
    public  void run() \{  
        List<userInfo> userList = userService.getUserList(startDate,endDate);  
        try \{  
             
            if(list!=null) \{  
                for (userInfo user : list) \{  
                    userList.add(user);  
                \}  
            \}  
                if (userList.size() > 0) \{  
                    userInfoMapper.replaceuserInfo(userList);  
                \}  
  
        \} catch (Exception e) \{  
            logger.error("异常消息："+e);  
            e.printStackTrace();  
        \} finally \{  
            countDownLatch.countDown();  
        \}  
    \}  
\}