在计算机ahutsdown之前执行代码 [英] Execute code before computer ahutsdown

问题描述

有没有办法在计算机关闭，注销，休眠或睡眠之前用java执行某段代码？

我试图在lubuntu的终端中使用runlevel来尝试听一个0，如果发生这种情况，执行代码，但那不起作用。

我也尝试在关机时执行joptionpane，通过监听app退出，但这也行不通。

有人可以给我另一个建议吗？

谢谢。

Is there some way to execute some piece of code before the computer shutsdown, logs off, hibernates or sleeps, with java?
I tried to use runlevel in a terminal in lubuntu, to try and listen for a 0, and if that happened, execute the code, but that did not work.
I also tried executing a joptionpane in shutdown, by listening for app exit, but that also did not work.
Can someone give me another advice?
Thanks.

推荐答案

我不认为这是可能的纯Java。通过在Windows系统中注册某些消息，可以在C / C ++中完成。您需要检查Linux文档以查看它是否提供了类似的机制。

I do not think this is possible in pure Java. It is possible to do it in C/C++ by registering for certain messages in a Windows system. You need to check the Linux documentation to see if it provides a similar mechanism.

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