如何在定时器中终止 TimerThread [英] How to terminate TimerThread in Timer

问题描述

当我阅读java.util.Timer的源代码时，我发现java.util.Timer是由一个TimerThread实现的和一个 TaskQueue

When I read the source code of java.util.Timer , I found that java.util.Timer is implemented by a TimerThread and a TaskQueue

据说java.util.Timer可以通过java.util.Timer.cancel()取消，

但是当我调用 java.util.Timer.cancel() 时，我发现 Timer 中的 TimerThread 仍在运行，

But when I call java.util.Timer.cancel() I found TimerThread in Timer still running ,

这是在线系统的问题吗?

Does this a problem for online system ?

如果可能的话，我怎样才能在 java.util.Timer 中停止 TimerThread?

And if possible , how can I stop TimerThread inside java.util.Timer?

从 TimerThread (jdk 7) 的来源我终于发现 Timer.cancel() 确实有效.

From source of TimerThread (jdk 7) I finally found that Timer.cancel() do works.

TimerThread wait TaskQueue ，当 Timer.cancel() 调用时，TaskQueue notify TimerThread , 如果`TaskQueue is EMPTY...

TimerThread wait TaskQueue , when Timer.cancel() called , TaskQueue notify TimerThread , And TimerThead should finally exit if `TaskQueue is EMPTY...

感谢您的评论，抱歉浪费您的时间.

Thank you for your comment , sorry to wasting your time.

推荐答案

定时器线程仍将运行.但是计时器线程将根据实现停止将任何内容接收到队列中.

Timer thread will still be running. But the timer thread will stop accepting anything into the queue as per the implementation.

timer(TimerThread) 线程只能通过 Timer 类访问.TimerThread 封装在 Timer 类中.在实现方面，他们已确保 Timer 停止接受对其队列的请求，但 TimerThread 本身并未停止.

The timer(TimerThread) thread is accessible to you only via Timer class. TimerThread is encapsultaed inside Timer class. Implementation wise, they have made sure the Timer stops accepting the requests to its queue, but the TimerThread as such is not stopped.

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