详解Java停止线程的四种方法

public class MyThread extends Thread {

    @Override
    public void run() {
        try {
            for (int i = 0; i < 500000; i++) {
                if (MyThread.interrupted()){
                    System.out.println("已经是停止状态了，我要退出了！");
                    throw new InterruptedException();
                }
                System.out.println("i = " + (i+1));
            }

            System.out.println("如果我被输出了，则代表线程没有停止");
        } catch (InterruptedException e) {
            System.out.println("在MyThread类中的run方法中被捕获");
            e.printStackTrace();
        }
    }
}

/**
 * 根据中断状态退出for循环
 * @Author: xjf
 * @Date: 2019/5/25 13:27
 */
public class Main {

    public static void main(String[] args) {
        try {
            MyThread myThread  = new MyThread();
            myThread.start();
            Thread.sleep(100);
            myThread.interrupt();
        } catch (InterruptedException e) {
            e.printStackTrace();
        }

        System.out.println("end!");
    }
}

public class MyThread extends Thread {

    @Override
    public void run() {
        try {
            System.out.println("run-----------start");
            Thread.sleep(5000);
            System.out.println("run-----------end");
        } catch (InterruptedException e) {
            System.out.println("在沉睡中被停止！进入catch，线程的是否处于停止状态：" + this.isInterrupted());
            e.printStackTrace();
        }

    }
}

public class Main {

    public static void main(String[] args) {
        try {
            MyThread myThread = new MyThread();
            myThread.start();
            Thread.sleep(2000);
            System.out.println("状态："+MyThread.interrupted());
            myThread.interrupt();
        } catch (InterruptedException e) {
            e.printStackTrace();
        }
    }
}

public class MyThread1 extends Thread {

    @Override
    public void run() {
        try {

            for (int i = 0; i < 100000; i++) {
                System.out.println("i = " + (i+1));
            }
            System.out.println("run begin");
            //interrupt是做一个中断标记，当时不会去中断正在运行的线程，当该线程处于阻塞状态时就会进行中断
            //因此，先进行interrupt后，再遇到sleep阻塞时，才会进行中断
            Thread.sleep(200000);
            System.out.println("run end");

        } catch (InterruptedException e) {
            System.out.println("先停止，再遇到了sleep！ 进入catch！");
            e.printStackTrace();
        }
    }
}

public class Main1 {

    public static void main(String[] args) {

        MyThread1 myThread1 = new MyThread1();
        myThread1.start();
        myThread1.interrupt();
        System.out.println("end!");
    }
}