用JAVA自带的jTree1组件，在组件上添加右键弹出菜单，删除选中节点。

Question

以下是最初的代码，刚建立Application，拖放了一个JTree上去，什么都没做的代码。现在我要在树的节点上点击右键，在弹出菜单中点击“删除”，把当前右键选中的节点删除。
我查了资料试了阵子，越写越乱，只好求助哪位朋友写一个简单点的例子给小弟学习一下。谢谢。
package treetest;import java.awt.BorderLayout;
import java.awt.Dimension;import javax.swing.JFrame;
import javax.swing.JPanel;
import javax.swing.JTree;
import java.awt.Rectangle;public class TreeTestFrame extends JFrame {
    JPanel contentPane;
    JTree jTree1 = new JTree();
    public TreeTestFrame() {
        try {
            setDefaultCloseOperation(EXIT_ON_CLOSE);
            jbInit();
        } catch (Exception exception) {
            exception.printStackTrace();
        }
    }    /**
     * Component initialization.
     *
     * @throws java.lang.Exception
     */
    private void jbInit() throws Exception {
        contentPane = (JPanel) getContentPane();
        contentPane.setLayout(null);
        setSize(new Dimension(400, 300));
        setTitle("Frame Title");
        jTree1.setBounds(new Rectangle(38, 11, 303, 236));
        contentPane.add(jTree1);
    }
}

Answer 1

tree.addMouseListener(new MouseAdapter() {
            //弹出右键菜单,TreeRightMouse是一个自定义Popupmenu
            @Override
            public void mouseReleased(MouseEvent e) {
                int n = tree.getRowForLocation(e.getX(), e.getY());
                if (n < 0) {
                    return;
                }
                if (e.getButton() == MouseEvent.BUTTON3) {
                    TreePath selTree = tree.getPathForRow(n);
                    DefaultMutableTreeNode selNode = (DefaultMutableTreeNode) selTree.getLastPathComponent();
                    if (selNode.isLeaf()) {
                        //如果为叶子，弹出叶子菜单
                        TreeRightMouse temp = new TreeRightMouse("L");
                        temp.show(e.getComponent(), e.getX(), e.getY());
                    } else {
                        //父节点，弹出父节点菜单
                        TreeRightMouse temp = new TreeRightMouse("P");
                        temp.show(e.getComponent(), e.getX(), e.getY());
                    }
                }
            }
        });

Answer 2

public class TreeRightMouse extends JPopupMenu {
    private JMenuItem jmilookACard = new JMenuItem("查看联系人消息");
    private JMenuItem jmimoveACard = new JMenuItem("联系人移到组...");
    private JMenuItem jmipdeleteACard = new JMenuItem("删除联系人");
    private JMenuItem jmirenameATeam = new JMenuItem("重命名组");
    private JMenuItem jmideleteATeam = new JMenuItem("删除组");
    private JMenuItem jmideleteAllTeamer = new JMenuItem("删除组成员");    //空的构造方法
    public TreeRightMouse(String LorP) {
        if (LorP.equals("L")) {
           add(jmilookACard );
            add(jmimoveACard);
            add(jmipdeleteACard);
        }
        if (LorP.equals("P")) {
            add(jmirenameATeam);
            add(jmideleteATeam);
            add(jmideleteAllTeamer);
}