java - 捕捉到 "InterruptedException"后，为什么 "Thread.currentThread().isInterrupted()"的值为 false？

Question

作为标题。

public static void main(String[] args) throws InterruptedException {

    Thread thread = new Thread(new Runnable() {
        @Override
        public void run() {
            try {
                TimeUnit.SECONDS.sleep(2);
            } catch (InterruptedException e) {
                e.printStackTrace();
                System.out.println(Thread.currentThread().isInterrupted());   //print false, who reset the interrupt?

            }
        }
    });

    thread.start();
    TimeUnit.SECONDS.sleep(1);
    thread.interrupt();
}

捕获“InterruptedException”后，为什么“Thread.currentThread().isInterrupted()”的值为false？

Answer 1

来自 Thread.sleep 的 Javadoc (由 TimeUnit.sleep 调用):

InterruptedException - if any thread has interrupted the current thread. The interrupted status of the current thread is cleared when this exception is thrown.

我认为 isInterrupted() 的目的是让您检测线程是否在 调用会抛出 InterruptedException 的东西之前被中断>。如果您捕获InterruptedException，则可以公平地假设线程已被中断...