Interrupt中断线程-优快云博客

本文通过一个Java示例演示了如何使用Thread.sleep方法与中断标志来尝试停止一个正在运行的线程，并对比了两种不同的线程阻塞实现方式及其效果。

package com.wistron.swpc.ecs.util;

public class WrongWayStopThread extends Thread{

    public static void main(String[] args) {
        WrongWayStopThread thread = new WrongWayStopThread();
        System.out.println("Starting thread...");
        thread.start();
        try {
            Thread.sleep(3000);
        } catch (InterruptedException e) {
            // TODO Auto-generated catch block
            e.printStackTrace();
        }
        
        System.out.println("Interrupting thread... ");
        thread.interrupt();
        
        try {
            Thread.sleep(3000);
        } catch (InterruptedException e) {
            // TODO Auto-generated catch block
            e.printStackTrace();
        }
        
        System.out.println("Stopping application...");
    }
    
    public void run(){
        while(!this.isInterrupted()){
            System.out.println("Thread is running...");
            //下面几行代码是模拟Thread.sleep(1000),至于为啥不用sleep是因为用了sleep无法正确中断线程
            long time = System.currentTimeMillis();
            while(System.currentTimeMillis()-time < 1000){
              //减少屏幕输出的空循环
            }
        }
    }

}

运行结果：

Starting thread...
Thread is running...
Thread is running...
Thread is running...
Thread is running...
Interrupting thread... 
Stopping application...

上面模拟的sleep的方法换成sleep

package com.wistron.swpc.ecs.util;

public class WrongWayStopThread extends Thread{

    public static void main(String[] args) {
        WrongWayStopThread thread = new WrongWayStopThread();
        System.out.println("Starting thread...");
        thread.start();
        try {
            Thread.sleep(3000);
        } catch (InterruptedException e) {
            // TODO Auto-generated catch block
            e.printStackTrace();
        }
        
        System.out.println("Interrupting thread... ");
        thread.interrupt();
        
        try {
            Thread.sleep(3000);
        } catch (InterruptedException e) {
            // TODO Auto-generated catch block
            e.printStackTrace();
        }
        
        System.out.println("Stopping application...");
    }
    
    public void run(){
        while(!this.isInterrupted()){
            System.out.println("Thread is running...");
            //下面几行代码是模拟Thread.sleep(1000),至于为啥不用sleep是因为用了sleep无法正确中断线程
            /*long time = System.currentTimeMillis();
            while(System.currentTimeMillis()-time < 1000){
              //减少屏幕输出的空循环
            }*/
            
            try {
                Thread.sleep(1000);
            } catch (InterruptedException e) {
                // TODO Auto-generated catch block
                e.printStackTrace();
            }
        }
    }

}

运行结果：

Starting thread...
Thread is running...
Thread is running...
Thread is running...
Interrupting thread... 
java.lang.InterruptedException: sleep interrupted
    at java.lang.Thread.sleep(Native Method)
    at com.wistron.swpc.ecs.util.WrongWayStopThread.run(WrongWayStopThread.java:39)
Thread is running...
Thread is running...
Thread is running...
Thread is running...
Stopping application...
Thread is running...
Thread is running...
Thread is running...
Thread is running...
Thread is running...

换成sleep之后不能结束线程

转载于:https://www.cnblogs.com/tarrying/p/9071920.html