JPopupMenuItem获取触发JPopupMenu的组件

Question

我有一个JRadioButton并为它设置了ComponentPopupMenu。

JRadioButton rdbtnTest = new JRadioButton();
rdbtnTest.setComponentPopupMenu(popupMenu);

popupMenu是JPopupMenu，其中一个JPopupMenuItem。 JPopupMenuItem有MouseListener，因此点击鼠标即可打开网页。

JPopupMenu popupMenu = new JPopupMenu("GO");
PopupMenuListener popupMenuListener = new MyPopupMenuListener();
popupMenu.addPopupMenuListener(popupMenuListener);
MenuItem openMenuItem = new JMenuItem("Open Webpage");

openMenuItem.addMouseListener(new MouseListener() {
        @Override
        public void mousePressed(MouseEvent arg0) {
            Component comp = arg0.getComponent(); // will only return the JPopupMenuItem
            // Determine the right-clicked radio button and open webpage
        }
popupMenu.add(openMenuItem);

我的问题是：如果我有另一个JRadioButton rdbtnTest2使用相同的popupMenu，我可以确定哪两个单选按钮触发了JPopupMenu？打开网页时，我需要根据右键单击的单选按钮传递一个特定的参数。

Answer 1

当您在MouseListener中显示弹出菜单时，只需获取事件源并将其存储在某处（调用菜单的单选按钮）。在你的代码中只需检查弹出调用程序。