运行多个线程的JVM如何处理ctrl-c，w/w和w/o shutdown钩子?

问题描述

无法在线找到此答案.当按Ctrl + C时:

Could not find this answer online. When Ctrl+C is hit:

• 当我们没有任何关闭钩子时，正在运行的线程会如何处理-它们是否都被InterruptedException击中?
• 当我们有关闭钩子时，我知道关闭钩子会以任意顺序在新线程中运行.但是现有的正在运行的线程会怎样?他们仍然每个人都受到InterruptedException的打击吗?

谢谢！

推荐答案

经典书籍"Java Concurrency in Practice"中有关于JVM关闭的一章(7.4)，您应该阅读该书，但是这里有一些相关的引号:

The classic book "Java Concurrency in Practice" has a chapter (7.4) on the JVM shutdown, you should read that, but here are some relevant quotes:

JVM不会尝试停止或中断在关闭时仍在运行的任何应用程序线程；当JVM最终停止时，它们会突然终止.

The JVM makes no attempt to stop or interrupt any application threads that are still running at shutdown time; they are abruptly terminated when the JVM eventually halts.

因此线程不会被中断，但是您可以根据需要从关闭挂钩中显式地中断线程.

So the threads are not interrupted, but you can interrupt them explicitly from the shutdown hook, if you wish.

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