Java 實(shí)例 – 中斷線程

Java 實(shí)例 - 中斷線程

Java 實(shí)例

以下實(shí)例演示了如何使用interrupt()方法來(lái)中斷線程并使用 isInterrupted() 方法來(lái)判斷線程是否已中斷：

/*
 author by w3cschool.cn
 Main.java
 */

public class Main extends Object 
implements Runnable {
   public void run() {
      try {
         System.out.println("in run() - 將運(yùn)行 work2() 方法");
         work2();
         System.out.println("in run() - 從 work2() 方法回來(lái)");
      }
      catch (InterruptedException x) {
         System.out.println("in run() - 中斷 work2() 方法");
         return;
      }
      System.out.println("in run() - 休眠后執(zhí)行");
      System.out.println("in run() - 正常離開(kāi)");
   }
   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() - 中斷其他線程");
      t.interrupt();
      System.out.println("in main() - 離開(kāi)");
   }
}

以上代碼運(yùn)行輸出結(jié)果為：

in run() - 將運(yùn)行 work2() 方法
in main() - 中斷其他線程
in main() - 離開(kāi)
C isInterrupted()=true
in run() - 中斷 work2() 方法

Java 實(shí)例