Java模拟耗时任务异步执行

Java实现耗时任务异步执行与回调

最新推荐文章于 2025-09-23 15:38:11 发布

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最新推荐文章于 2025-09-23 15:38:11 发布 · 5.2k 阅读

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本文介绍如何在Java中通过开启独立线程处理耗时任务，并利用回调接口在任务完成时通知主线程。主要内容包括回调接口的定义和耗时任务线程的模拟实现。

说明：耗时任务开启单独线程处理，任务线程处理完毕通知主线程

1、回调接口定义

public interface ResponseCallBack {
    public void printMsg(String msg);
}

2、模拟耗时任务线程

public class TestMain {

    public static void main(String[] args){
        ExecutorService executorService = Executors.newFixedThreadPool(1);
        executorService.submit(new TestThread(new ResponseCallBack() {
            @Override
            public void printMsg(String msg) {
                System.out.println("print message: " + msg);
            }
        }));
        executorService.shutdown();
    }
}

class TestThread implements Runnable {

    private ResponseCallBack responseCallBack;

    public TestThread(ResponseCallBack responseCallBack) {
        this.responseCallBack = responseCallBack;
    }

    @Override
    public void run() {
        try {
            System.out.println(Thread.currentThread().getName() + " st