每个线程对象里都有一个 boolean 类型的标识 (能够叫做中断标识)，代表着是否有中断请求，能够应用这个标记位实现线程的终止性能。在最近的一个工作勾销的性能时，写下来如下代码：
Thread t = new Thread(new Runnable() {
@Override
public void run() {while (!Thread.interrupted()) {
try {System.out.println("I am ok");
Thread.sleep(500);
} catch (Exception e) {logger.warn(...);
}
}
}
});
t.start();
而后在程序中适当的机会调用了 t.interupt()。满怀期待工作的进行。but 意外产生了，工作打印出了 ”java.lang.InterruptedException: sleep interrupted” 日志后，工作任然持续运行。
很显然中断标识被革除了。
查看 sleep 办法的阐明中有以下内容：
InterruptedException – if any thread has interrupted the current thread. The interrupted status of the current thread is cleared when this exception is thrown.
sleep 产生 InterruptedException 后，中断标识被革除。顺便咱们看看 InterruptedException 的阐明：
Thrown when a thread is waiting, sleeping, or otherwise occupied, and the thread is interrupted, either before or during the activity. Occasionally a method may wish to test whether the current thread has been interrupted, and if so, to immediately throw this exception. The following code can be used to achieve this effect:
if (Thread.interrupted())
throw new InterruptedException();当线程期待、休眠或以其余形式被占用，并且线程在流动之前或期间被中断时抛出。有时某个办法可能心愿测试以后线程是否已被中断，如果是，则立刻抛出此异样。上面的代码能够用来实现这个成果
if (Thread.interrupted())
throw new InterruptedException();批改原来的代码，捕捉 InterruptedExceion 并进行解决：
Thread t = new Thread(new Runnable() {
@Override
public void run() {while (!Thread.interrupted()) {
try {System.out.println("I am ok");
Thread.sleep(500);
} catch (InterruptedException e) {Thread.currentThread().interrupt();} catch (Exception e) {e.printStackTrace();
}
}
}
});
t.start();运行后能够 interupt 后 能够实现勾销性能。
总结: 当有 InterruptException 产生时，要进行解决，抛出异样或者再次标记中断标识。
特地是办法是给他人调用的最好不要吞掉中断，即捕捉到 InterruptedException 后在 catch 里什么也不做。