JTREE

Question

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 {
   
    }
  }

Answer 1

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 {
   
    }
  }

Answer 2

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{
          ...
       }
    }
}