Java中用Thread.join实现单任务分成多个任务最后合并结果集

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执行任务的具体线程类：

package com.utils;import java.util.ArrayList;import java.util.List;public class MyThread extends Thread {private List<String> result = new ArrayList<String>();private String selfName;public MyThread(String selfName) {super();this.selfName = selfName;}@Overridepublic void run() {for(int i=0;i<3;i++){result.add(this.selfName + "-data" + i);}}public List<String> getResult() {return result;}public void setResult(List<String> result) {this.result = result;}public String getSelfName() {return selfName;}public void setSelfName(String selfName) {this.selfName = selfName;}}

测试类：

package com.utils;import java.util.ArrayList;import java.util.Arrays;import java.util.List;public class MyThreadTest extends Thread {public static void main(String[] args) {List<String> resList = new ArrayList<String>();List<MyThread> threads = new ArrayList<MyThread>();for(int i=0;i<3;i++){MyThread thread = new MyThread("Thread" + i);thread.start();threads.add(thread);}for (MyThread thread : threads) {try {//主线程等待时间不超过10秒，若超过，则主线程直接走thread.join(10000); } catch (InterruptedException e) {e.printStackTrace();}}for (int i=0;i<threads.size();i++) {List<String> result = threads.get(i).getResult();if(result.size()==0 && threads.get(i).isAlive()){threads.get(i).interrupt();//中断超时的线程}else{resList.addAll(result);}}System.out.println("结果如下：\n" + resList);}}

运行结果如下：

结果如下：
[Thread0-data0, Thread0-data1, Thread0-data2, Thread1-data0, Thread1-data1, Thread1-data2, Thread2-data0, Thread2-data1, Thread2-data2]