jTree 添加、编辑、删除节点

来源：互联网发布：古墓丽影10 for mac 编辑：程序博客网时间：2024/05/22 07:44

http://developer.51cto.com/art/201201/313014.htm

http://blog.sina.com.cn/s/blog_40b22f640100kf3a.html

http://blog.csdn.net/cnjzy0106/article/details/5388715

//删除:

private void jButton8MouseClicked(java.awt.event.MouseEvent evt) {
       DefaultTreeModel model = (DefaultTreeModel) jTree1.getModel();
       DefaultMutableTreeNode selectedNode = (DefaultMutableTreeNode) jTree1
               .getLastSelectedPathComponent();
       if (selectedNode != null && selectedNode.getParent() != null) {
           // 删除指定节点
           model.removeNodeFromParent(selectedNode);
       }
   }
// 添加:
   private void jButton7MouseClicked(java.awt.event.MouseEvent evt) {
       DefaultTreeModel model = (DefaultTreeModel) jTree1.getModel();
       DefaultMutableTreeNode selectedNode = (DefaultMutableTreeNode) jTree1
               .getLastSelectedPathComponent();//获取选中节点
       if (selectedNode == null)
           return;
       DefaultMutableTreeNode newNode = new DefaultMutableTreeNode("new node");//创建一个新节点
       model.insertNodeInto(newNode, selectedNode,
               selectedNode.getChildCount());
       //       DefaultMutableTreeNode parent = (DefaultMutableTreeNode) selectedNode
       //               .getParent();
       //       if (parent == null)
       //           return;
       //int selectedIndex = parent.getIndex(selectedNode);
       //model.insertNodeInto(newNode, parent, selectedIndex + 1);
   }

//编辑

    private void jButton9MouseClicked(java.awt.event.MouseEvent evt) {
       jTree1.setEditable(true);
       TreePath selectedPath = jTree1.getSelectionPath();
       if (selectedPath != null) {
           jTree1.startEditingAtPath(selectedPath); // 编辑选中节点
       }
       jTree1.setInvokesStopCellEditing(true);//设置可编辑
   }