Get the application closing event

淺唱寂寞╮ 提交于 2019-11-27 14:50:30

问题


How to get to the application closing event?

I want to get application to save all unsaved operations or show the user a message "Are you sure about closing without saving all data?" something like this.

If this will be helpful - the application is a SingleFrameAplication using Swing.


回答1:


You could use a shutdown hook. It works for Swing, AWT and even console applications.

Example:

Runtime.getRuntime().addShutdownHook(new Thread()
{
    @Override
    public void run()
    {
        //do your stuff
    }
});



回答2:


You have to add WindowListener to your JFrame / JDialog, about closing event is there method public void windowClosing(WindowEvent e) { code example here




回答3:


You can use sun.misc.Signal or Runtime.getRuntime().addShutdownHook

More info



来源:https://stackoverflow.com/questions/9317461/get-the-application-closing-event

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