JFrame，JDialog，JInternalFrame关闭的拦截
2009-09-22 00:00:00 来源：WEB开发网 闂傚倷绶氬ḿ褍螞閹绢喖绠柨鐕傛嫹
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总的测试代码如下：
import java.awt.event.WindowEvent;
import javax.swing.JButton;
import javax.swing.JDesktopPane;
import javax.swing.JFrame;
import javax.swing.JInternalFrame;
import javax.swing.JOptionPane;
import javax.swing.SwingUtilities;
/** *//***
* JFrame和JInternalFrame关闭前先确认是否关闭
* @author kissjava
* www.blogjava.net/kissjava
* **/
public class CloseFrameDemo extends JFrame{
public CloseFrameDemo(){
this.setTitle("CloseFrameDemo");
jbInit();
this.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);
this.setSize(800, 800);
this.setVisible(true);
}
private void jbInit(){
JDesktopPane desktop = new JDesktopPane();
JInternalFrame internalFrame = this.createJInternalFrame();
JButton btn = new JButton("DEMO");
internalFrame.add(btn, "Center");
desktop.add(internalFrame, JDesktopPane.PALETTE_LAYER);
internalFrame.setSize(400,400);
internalFrame.setVisible(true);
this.add(desktop, "Center");
}
private JInternalFrame createJInternalFrame(){
JInternalFrame internalFrame = new JInternalFrame("JInternalFrame Close Demo", true, true, true, true){
/** *//***
* 重写此方法让用户确认是否需要关闭
* */
@Override
public void doDefaultCloseAction(){
//关闭的提示选择
int result= JOptionPane.showConfirmDialog(
this,
("确认要关闭JInternalFrame吗？"),
("关闭"),
JOptionPane.YES_NO_OPTION);
if(result == JOptionPane.YES_OPTION){
//如果选择YES，交由上层设置的关闭处理
super.doDefaultCloseAction();
}
}
};
return internalFrame;
}
/** *//***
* 重写此方法让用户确认是否需要关闭
* */
@Override
protected void processWindowEvent(WindowEvent e) {
boolean flag = false;
if (e.getID() == WindowEvent.WINDOW_CLOSING) {
//关闭的提示选择
int result= JOptionPane.showConfirmDialog(
this,
("确认要关闭吗？"),
("关闭"),
JOptionPane.YES_NO_OPTION);
if(result == JOptionPane.NO_OPTION){
//不关闭，系统托盘？？？？
flag = true;
}else{
//关闭的处理
}
}
if(!flag){
//点击的了YES,那么交给上面去处理关闭的处理
super.processWindowEvent(e);
}
}
public static void main(String[] args) {
// TODO Auto-generated method stub
SwingUtilities.invokeLater(new Runnable(){
public void run(){
new CloseFrameDemo();
}
}) ;
}
}
Tags：JFrame JDialog JInternalFrame
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