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