利用JTREE来完成菜单功能.
当我点击树中一个节点就可以实现一个操作.
树型如下:
+用户界面
+客户界面
单击"用户界面"就会弹出"用户界面(JFRAME1)"
单击"客户界面"就会弹出"客户界面(JFRAME2)"
用谁可以提供代码让小弟研究一下.谢先了.

处理鼠标事件
jTree.addMouseListener(new java.awt.event.MouseAdapter() {
      public void mouseClicked(MouseEvent e) {
        jTree_mouseClicked(e);
      }
});

void jTree1_mouseClicked(MouseEvent e)
{
    DefaultMutableTreeNode parentNode = null;
    TreePath parentPath = jTree1.getSelectionPath();
    if(parentPath!=null){
       parentNode = (DefaultMutableTreeNode)
                     (parentPath.getLastPathComponent());
       if(((String)(parentNode.getUserObject())).equals("用户界面"))  {
          JFRAME1 j = new JFRAME1();
          j.show();
       }
       else{
          ...
       }
    }
}

jTree.addMouseListener(new java.awt.event.MouseAdapter() {

      public void mouseClicked(MouseEvent e) {
        jTree_mouseClicked(e);
      }
    });

  void jTree_valueChanged(TreeSelectionEvent e) {
    if(jTree.getSelectionPath().toString().equals("用户界面")){
      JFRAME1 j = new JFRAME1();
      j.show();
    } else {
   
    }
  }

jTree.addMouseListener(new java.awt.event.MouseAdapter() {

      public void mouseClicked(MouseEvent e) {
        jTree_mouseClicked(e);
      }
    });

  void jTree_valueChanged(TreeSelectionEvent e) {
    if(jTree.getSelectionPath().toString().equals("用户界面")){
      JFRAME1 j = new JFRAME1();
      j.show();
    } else {
   
    }
  }