• Java 实例 - 中断线程

    以下实例演示了如何使用interrupt()方法来中断线程并使用 isInterrupted() 方法来判断线程是否已中断:

    Main.java 文件

    public class Main extends Object implements Runnable { public void run() { try { System.out.println("in run() - 将运行 work2() 方法"); work2(); System.out.println("in run() - 从 work2() 方法回来"); } catch (InterruptedException x) { System.out.println("in run() - 中断 work2() 方法"); return; } System.out.println("in run() - 休眠后执行"); System.out.println("in run() - 正常离开"); } public void work2() throws InterruptedException { while (true) { if (Thread.currentThread().isInterrupted()) { System.out.println("C isInterrupted()=" + Thread.currentThread().isInterrupted()); Thread.sleep(2000); System.out.println("D isInterrupted()=" + Thread.currentThread().isInterrupted()); } } } public void work() throws InterruptedException { while (true) { for (int i = 0; i < 100000; i++) { int j = i * 2; } System.out.println("A isInterrupted()=" + Thread.currentThread().isInterrupted()); if (Thread.interrupted()) { System.out.println("B isInterrupted()=" + Thread.currentThread().isInterrupted()); throw new InterruptedException(); } } } public static void main(String[] args) { Main si = new Main(); Thread t = new Thread(si); t.start(); try { Thread.sleep(2000); } catch (InterruptedException x) { } System.out.println("in main() - 中断其他线程"); t.interrupt(); System.out.println("in main() - 离开"); } }

    以上代码运行输出结果为:

    in run() - 将运行 work2() 方法
    in main() - 中断其他线程
    in main() - 离开
    C isInterrupted()=true
    in run() - 中断 work2() 方法