java Swing 实现将系统最小化到系统托盘

源码：

/*

* MainFrame.java

*

* Created on 2008年9月20日, 上午11:44

*/

package
com.topking.tray.ui;

import
java.awt.AWTException;

import
java.awt.Image;

import
java.awt.MenuItem;

import
java.awt.PopupMenu;

import
java.awt.SystemTray;

import
java.awt.TrayIcon;

import
java.awt.event.ActionEvent;

import
java.awt.event.ActionListener;

import
java.awt.event.MouseEvent;

import
java.awt.event.MouseListener;

import
java.awt.event.WindowEvent;

import
java.awt.event.WindowListener;

import
javax.swing.ImageIcon;

/**

*

* @author lzkj

*/

public

class
MainFrame
extends
javax.swing.JFrame
implements
ActionListener, WindowListener{

// Variables declaration - do not modify

private
javax.swing.JLabel L_img;

private
javax.swing.JLabel L_img2;

private
PopupMenu pop;

private
MenuItem open,close;

private
TrayIcon trayicon;

// End of variables declaration

/** Creates new form MainFrame */

public
MainFrame() {

this
.setTitle(
"Java实现系统托盘示例"
);

this
.setLocation(
300
,
300
);

initComponents();

}

/** This method is called from within the constructor to

* initialize the form.

* WARNING: Do NOT modify this code. The content of this method is

* always regenerated by the Form Editor.

*/

@SuppressWarnings
(
"unchecked"
)

// <editor-fold defaultstate="collapsed" desc="Generated Code">

private

void
initComponents() {

// L_img = new javax.swing.JLabel(new ImageIcon((MainFrame.class).getResource("com/topking/tray/images/netbean1.png")));

// L_img2 = new javax.swing.JLabel(new ImageIcon((MainFrame.class).getResource("com/topking/tray/images/netbean2.png")));

L_img = new
javax.swing.JLabel(
new
ImageIcon(
this
.getClass().getClassLoader().getResource(
"com/topking/tray/images/netbean1.png"
)));

L_img2 = new
javax.swing.JLabel(
new
ImageIcon(
this
.getClass().getClassLoader().getResource(
"com/topking/tray/images/netbean2.png"
)));

pop = new
PopupMenu();

open = new
MenuItem(
"打开"
);

open.addActionListener(this
);

close = new
MenuItem(
"关闭"
);

close.addActionListener(this
);

pop.add(open);

pop.add(close);

if
(SystemTray.isSupported()){

SystemTray tray = SystemTray.getSystemTray();

Image icon = this
.getToolkit().getImage(
this
.getClass().getClassLoader().getResource(
"com/topking/tray/images/user_edit.png"
));

trayicon = new
TrayIcon(icon,
"系统托盘示例(java)"
,pop);

trayicon.addMouseListener(new
MouseListener(){

public

void
mouseClicked(MouseEvent e) {

// TODO Auto-generated method stub

if
(e.getClickCount()==
2
){

openFrame();

}

}

public

void
mouseEntered(MouseEvent e) {

// TODO Auto-generated method stub

}

public

void
mouseExited(MouseEvent e) {

// TODO Auto-generated method stub

}

public

void
mousePressed(MouseEvent e) {

// TODO Auto-generated method stub

}

public

void
mouseReleased(MouseEvent e) {

// TODO Auto-generated method stub

}

});

try
{

tray.add(trayicon);

} catch
(AWTException e) {

// TODO Auto-generated catch block

e.printStackTrace();

}

}

javax.swing.GroupLayout layout = new
javax.swing.GroupLayout(getContentPane());

getContentPane().setLayout(layout);

layout.setHorizontalGroup(

layout.createParallelGroup(javax.swing.GroupLayout.Alignment.LEADING)

.addGroup(javax.swing.GroupLayout.Alignment.TRAILING, layout.createSequentialGroup()

.addContainerGap()

.addGroup(layout.createParallelGroup(javax.swing.GroupLayout.Alignment.TRAILING)

.addComponent(L_img2, javax.swing.GroupLayout.Alignment.LEADING, javax.swing.GroupLayout.DEFAULT_SIZE, 380
, Short.MAX_VALUE)

.addComponent(L_img, javax.swing.GroupLayout.Alignment.LEADING, javax.swing.GroupLayout.DEFAULT_SIZE, 380
, Short.MAX_VALUE))

.addContainerGap())

);

layout.setVerticalGroup(

layout.createParallelGroup(javax.swing.GroupLayout.Alignment.LEADING)

.addGroup(layout.createSequentialGroup()

.addContainerGap()

.addComponent(L_img)

.addGap(29
,
29
,
29
)

.addComponent(L_img2, javax.swing.GroupLayout.PREFERRED_SIZE, 222
, javax.swing.GroupLayout.PREFERRED_SIZE)

.addContainerGap(39
, Short.MAX_VALUE))

);

pack();

}// </editor-fold>

/**

* @param args the command line arguments

*/

public

static

void
main(String args[]) {

java.awt.EventQueue.invokeLater(new
Runnable() {

public

void
run() {

new
MainFrame().setVisible(
true
);

}

});

}

public

void
actionPerformed(ActionEvent e) {

// TODO Auto-generated method stub

if
(e.getSource()==open){

openFrame();

}

if
(e.getSource()==close){

System.exit(-1
);

}

}

public

void
openFrame(){

this
.setVisible(
true
);

this
.setAlwaysOnTop(
true
);

}

public

void
windowActivated(WindowEvent arg0) {

// TODO Auto-generated method stub

}

public

void
windowClosed(WindowEvent arg0) {

// TODO Auto-generated method stub

this
.setVisible(
false
);

this
.dispose();

}

public

void
windowClosing(WindowEvent arg0) {

// TODO Auto-generated method stub

}

public

void
windowDeactivated(WindowEvent arg0) {

// TODO Auto-generated method stub

}

public

void
windowDeiconified(WindowEvent arg0) {

// TODO Auto-generated method stub

}

//窗口最小化

public

void
windowIconified(WindowEvent arg0) {

// TODO Auto-generated method stub

this
.dispose();

}

public

void
windowOpened(WindowEvent arg0) {

// TODO Auto-generated method stub

}

}