http://blog.csdn.net/wxwzy738/article/details/8516253

class Example3 extends Thread {

  volatile boolean stop = false;
  public static void main( String args[] ) throws Exception {
   Example3 thread = new Example3();
   System.out.println( "Starting thread..." );
   thread.start();
   Thread.sleep( 3000 );
   System.out.println( "Asking thread to stop..." );
   thread.stop = true;//如果线程阻塞，将不会检查此变量
   thread.interrupt();
   Thread.sleep( 3000 );
   System.out.println( "Stopping application..." );
   //System.exit( 0 );
  }


  public void run() {
    while ( !stop ) {
     System.out.println( "Thread running..." );
      try {//当不使用interrupt()，stop会一直等到阻塞结束才会判断，注意，interrupt()应该在阻塞前调用
      Thread.sleep( 10000);//当调用interrupt()，运行到此处会直接补货异常,在一场中设置stop标志，然后while判断
      } catch ( InterruptedException e ) {
      System.out.println( "Thread interrupted..." );
      }
    }
   System.out.println( "Thread exiting under request..." );
  }
}