网上主要流传有两种方式实现系统托盘:
1.Windows Tray Icon (http://jeans.studentenweb.org/java/trayicon/trayicon.html)
![shot-balloon.gif](/images/blogjava_net/qiyadeng/tray/shot-balloon.gif)
2.SysTray for Java (http://systray.sourceforge.net/)
![shot.png](/images/blogjava_net/qiyadeng/tray/shot.png)
这两个都是开源的...可以根据上面的下载.
相对来说,我更喜欢SysTray for Java,原因很简单,SysTray for Java实现了我所要的功能而且相对来说比Windows Tray Icon 要简单.
使用SysTray是很简单的.下载下来的文件有个例子Example.java,照着这个实现你所需要的功能应该不算困难.
主要是菜单和按钮的操作,和操作一般的JFrame一样.
下面是一个例子程序:
package qiya.systray;import java.awt.Dimension;
import java.awt.Font;
import java.awt.Rectangle;
import java.awt.Toolkit;
import java.awt.event.ActionEvent;
import java.awt.event.ActionListener;
import javax.swing.ImageIcon;
import javax.swing.JButton;
import javax.swing.JFrame;
import javax.swing.JLabel;
import javax.swing.JOptionPane;
import javax.swing.UIManager;
import javax.swing.UnsupportedLookAndFeelException;
import snoozesoft.systray4j.SysTrayMenu;
import snoozesoft.systray4j.SysTrayMenuEvent;
import snoozesoft.systray4j.SysTrayMenuIcon;
import snoozesoft.systray4j.SysTrayMenuItem;
import snoozesoft.systray4j.SysTrayMenuListener;
public class MainFrame extends JFrame implements ActionListener,
SysTrayMenuListener {
static final int INIT_WIDTH = 400;// 默认窗口宽度
static final int INIT_HEIGHT = 244;// 默认窗口高度
private static final String toolTip = "宽带计费接口";// 提示文字
static final SysTrayMenuIcon icon = new SysTrayMenuIcon("rocket.gif");// 图片信息
SysTrayMenu menu;// 菜单
private JButton launchButton = new JButton();// 启动按钮
private JButton exitButton = new JButton();// 退出按钮
private JLabel statusLabel = new JLabel();// 运行状态
public static void main(String[] args) {
try {
UIManager.setLookAndFeel(UIManager.getSystemLookAndFeelClassName());
} catch (ClassNotFoundException e) {
e.printStackTrace();
} catch (InstantiationException e) {
e.printStackTrace();
} catch (IllegalAccessException e) {
e.printStackTrace();
} catch (UnsupportedLookAndFeelException e) {
e.printStackTrace();
}
new MainFrame();
}
public MainFrame() {
super("宽带计费接口");// 标题
setIconImage(new ImageIcon(getClass().getResource("rocket.gif"))
.getImage());// 图标
this.setLayout(null);
this.setSize(new Dimension(INIT_WIDTH, INIT_HEIGHT));
Dimension dimScreen = Toolkit.getDefaultToolkit().getScreenSize();
int xPos = (dimScreen.width - INIT_WIDTH) / 2;
int yPos = (dimScreen.height - INIT_HEIGHT) / 2;
statusLabel.setText("系统状态监视");
statusLabel.setBounds(new Rectangle(45, 35, 280, 40));
statusLabel.setToolTipText("当前系统的运行状态");
statusLabel.setFont(new Font("宋体", 0, 14));
launchButton.setText("启动");
launchButton.setBounds(new Rectangle(80, 180, 80, 23));
exitButton.setText("退出");
exitButton.setBounds(new Rectangle(230, 180, 80, 23));
this.getContentPane().add(statusLabel, null);
this.getContentPane().add(launchButton, null);
this.getContentPane().add(exitButton, null);
launchButton.addActionListener(this);
exitButton.addActionListener(this);
this.setBounds(xPos, yPos, INIT_WIDTH, INIT_HEIGHT);
icon.addSysTrayMenuListener(this);
this.createMenu();
this.setVisible(true);
}
/**
* 创建菜单
*
*/
private void createMenu() {
SysTrayMenuItem subItem1 = new SysTrayMenuItem("退出", "退出");
subItem1.addSysTrayMenuListener(this);
SysTrayMenuItem subItem2 = new SysTrayMenuItem("关于", "关于");
subItem2.addSysTrayMenuListener(this);
SysTrayMenuItem subItem3 = new SysTrayMenuItem("帮助", "帮助");
subItem3.addSysTrayMenuListener(this);
menu = new SysTrayMenu(icon, toolTip);// 生成菜单
menu.addItem(subItem1);
menu.addSeparator();
menu.addItem(subItem2);
menu.addItem(subItem3);
}
/**
* 点击按钮事件
*/
public void actionPerformed(ActionEvent e) {
if (e.getActionCommand().equalsIgnoreCase("退出")) {
System.exit(0);
} else if (e.getActionCommand().equalsIgnoreCase("启动")) {
// 启动计费程序
}
}
/**
* 菜单选择事件
*/
public void menuItemSelected(SysTrayMenuEvent e) {
if (e.getActionCommand().equalsIgnoreCase("退出")) {
System.exit(0);
} else if (e.getActionCommand().equalsIgnoreCase("关于")) {
JOptionPane.showMessageDialog(this, "宽带计费接口" + "完成于2005-3-27");
} else if (e.getActionCommand().equalsIgnoreCase("帮助")) {
JOptionPane.showMessageDialog(this, "宽带计费接口" + "帮助文件待写...");
}
}
/**
* 左键单击事件
*/
public void iconLeftClicked(SysTrayMenuEvent e) {
if (this.isVisible()) {// 如果可见,最小化
this.setVisible(false);
} else {// 如果不可见显示出来
this.setVisible(true);
}
}
/**
* 左键双击事件
*/
public void iconLeftDoubleClicked(SysTrayMenuEvent e) {
if (this.isVisible()) {// 如果可见,最小化
this.setVisible(false);
} else {// 如果不可见显示出来
this.setVisible(true);
}
}
}