基本上，在您的鼠标侦听器中，您需要确定按下了哪个按钮（以及可选的按下次数）。
关键代码段是这样的…
if (e.getButton() == MouseEvent.BUTTON1 && e.getClickCount() == 1) { ... }我还添加了一些其他代码，以确保弹出窗口不会覆盖任务栏，并且不会显示在屏幕的可视区域内（这是我的固有选择；）。
public class TestTrayIcon02 { public static void main(String[] args) { EventQueue.invokeLater(new Runnable() { @Override public void run() { try { UIManager.setLookAndFeel(UIManager.getSystemLookAndFeelClassName()); } catch (Exception ex) { } try { final TrayIcon ti = new TrayIcon(ImageIO.read(getClass().getResource("/Smiley.png")), "Have a nice day"); final JPopupMenu popup = new JPopupMenu(); JMenuItem mi = new JMenuItem("Get me some"); mi.addActionListener(new ActionListener() { @Override public void actionPerformed(ActionEvent e) { SystemTray.getSystemTray().remove(ti); System.exit(0); } }); popup.add(mi); ti.addMouseListener(new MouseAdapter() { @Override public void mouseClicked(MouseEvent e) { if (e.getButton() == MouseEvent.BUTTON1 && e.getClickCount() == 1) { Rectangle bounds = getSafeScreenBounds(e.getPoint()); Point point = e.getPoint(); int x = point.x; int y = point.y; if (y < bounds.y) { y = bounds.y; } else if (y > bounds.y + bounds.height) { y = bounds.y + bounds.height; } if (x < bounds.x) { x = bounds.x; } else if (x > bounds.x + bounds.width) { x = bounds.x + bounds.width; } if (x + popup.getPreferredSize().width > bounds.x + bounds.width) { x = (bounds.x + bounds.width) - popup.getPreferredSize().width; } if (y + popup.getPreferredSize().height > bounds.y + bounds.height) { y = (bounds.y + bounds.height) - popup.getPreferredSize().height; } popup.setLocation(x, y); popup.setVisible(true); } } }); SystemTray.getSystemTray().add(ti); } catch (Exception ex) { ex.printStackTrace(); } } }); } public static Rectangle getSafeScreenBounds(Point pos) { Rectangle bounds = getScreenBoundsAt(pos); Insets insets = getScreenInsetsAt(pos); bounds.x += insets.left; bounds.y += insets.top; bounds.width -= (insets.left + insets.right); bounds.height -= (insets.top + insets.bottom); return bounds; } public static Insets getScreenInsetsAt(Point pos) { GraphicsDevice gd = getGraphicsDeviceAt(pos); Insets insets = null; if (gd != null) { insets = Toolkit.getDefaultToolkit().getScreenInsets(gd.getDefaultConfiguration()); } return insets; } public static Rectangle getScreenBoundsAt(Point pos) { GraphicsDevice gd = getGraphicsDeviceAt(pos); Rectangle bounds = null; if (gd != null) { bounds = gd.getDefaultConfiguration().getBounds(); } return bounds; } public static GraphicsDevice getGraphicsDeviceAt(Point pos) { GraphicsDevice device = null; GraphicsEnvironment ge = GraphicsEnvironment.getLocalGraphicsEnvironment(); GraphicsDevice lstGDs[] = ge.getScreenDevices(); ArrayList<GraphicsDevice> lstDevices = new ArrayList<GraphicsDevice>(lstGDs.length); for (GraphicsDevice gd : lstGDs) { GraphicsConfiguration gc = gd.getDefaultConfiguration(); Rectangle screenBounds = gc.getBounds(); if (screenBounds.contains(pos)) { lstDevices.add(gd); } } if (lstDevices.size() > 0) { device = lstDevices.get(0); } else { device = ge.getDefaultScreenDevice(); } return device; }}
