关于JTree

Question

要在JTree的的叶子节点上使用右键快捷菜单，就想QQ上的在我的好友的头像上点右键会有发送消息等菜单，那为高手帮忙

Answer 1

用JPopupMenu 
import java.awt.*; 
import java.awt.event.*; 
import javax.swing.*; 
class PopupmenuTest extends MouseAdapter implements MouseListener 
{ 
JFrame f; 
JPopupMenu pm; 
public static void main(String argv[]) 
{ 
new PopupmenuTest(); 
} 
public PopupmenuTest() 
{ 
f=new JFrame("PopupmenuTest"); 
f.addMouseListener(this); 
JMenuItem popup1=new JMenuItem(); 
JMenuItem popup2=new JMenuItem(); 
pm=new JPopupMenu(); 
pm.add(popup1); 
pm.add(popup2); 
f.setSize(100,100); 
f.setVisible(true); 
} 
public void mouseReleased(MouseEvent e) 
{ 
if(e.isPopupTrigger()) 
{ 
pm.show(f,e.getX(),e.getY()); 
} 
} 
}

Answer 2

我要求的是JTree的实例  被监听  addMouseListener( ) ;同时是 树的叶节点  响应出来的事件是 出现 JPopupMenu 这个菜单啊。   兄弟啊。  你是不是没理解我的意思啊!天啊。 .  我的天啊。 
1

Answer 3

import java.awt.BorderLayout;
import java.awt.event.MouseAdapter;
import java.awt.event.MouseEvent;import javax.swing.*;
import javax.swing.tree.TreePath;public class T {
public static void main(String[] args) {
final JTree tree = new JTree();
final JPopupMenu popup = new JPopupMenu();
popup.add(new JMenuItem("Cut"));
popup.add(new JMenuItem("Copy"));
popup.add(new JMenuItem("Paste"));
tree.addMouseListener(new MouseAdapter() {

public void mouseReleased(MouseEvent e) {
if (SwingUtilities.isRightMouseButton(e)) {
popup.show(tree, e.getX(), e.getY());
}
}

public void mousePressed(MouseEvent e) {
if (SwingUtilities.isRightMouseButton(e)) {
TreePath path = tree.getPathForLocation(e.getX(), e.getY());
if (path != null && !tree.isPathSelected(path)) {
tree.setSelectionPath(path);
}
}
}

});

JFrame f = new JFrame();
f.getContentPane().add(new JScrollPane(tree), BorderLayout.CENTER);
f.pack();
f.setLocationRelativeTo(null);
f.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);
f.setVisible(true);
}
}