我是靠谱客的博主 执着楼房,最近开发中收集的这篇文章主要介绍双击编辑树节点功能,觉得挺不错的,现在分享给大家,希望可以做个参考。

概述

public class ToolTipNode extends JFrame implements TreeCellRenderer{
private static final long serialVersionUID=-1884123037630846839L;
private DefaultTreeCellRenderer renderer=new DefaultTreeCellRenderer();
private Map<DefaultMutableTreeNode,String>map;//保存键值树
public ToolTipNode(Map<DefaultMutableTreeNode,String>map){//初始化键值树
	this.map=map;
}
public Component getTreeCellRendererComponent(JTree tree,Object value,boolean selected,boolean expanded,boolean leaf,int row,boolean hasFocus){
	//调用默认的方法
	renderer.getTreeCellRendererComponent(tree, value, selected, expanded, leaf, row, hasFocus);
	renderer.setToolTipText("<html><font face=微软雅黑 size=16 color=red>"+map.get(value)+"</font></html>");
	return renderer;
}
public ToolTipNode(){
	addWindowListener(new WindowListener(){
		public void windowActivated(WindowEvent e){
			do_this_windowActivated(e);
		}

		@Override
		public void windowClosed(WindowEvent e) {
			// TODO Auto-generated method stub
			
		}

		@Override
		public void windowClosing(WindowEvent e) {
			// TODO Auto-generated method stub
			
		}

		@Override
		public void windowDeactivated(WindowEvent e) {
			// TODO Auto-generated method stub
			
		}

		@Override
		public void windowDeiconified(WindowEvent e) {
			// TODO Auto-generated method stub
			
		}

		@Override
		public void windowIconified(WindowEvent e) {
			// TODO Auto-generated method stub
			
		}

		@Override
		public void windowOpened(WindowEvent e) {
			// TODO Auto-generated method stub
			
		}

		 });
			setSize(300,300);
			setVisible(true);
			setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);
	}	
		 

		 
	 

	public static void main(String[] args) {
		 new ToolTipNode();
	}
public void do_this_windowActivated(WindowEvent e){
			DefaultMutableTreeNode root=new DefaultMutableTreeNode("明日科技新书");//创建根节点
			DefaultMutableTreeNode parent1=new DefaultMutableTreeNode("从入门到精通系列");
			parent1.add(new DefaultMutableTreeNode("Java从入门到精通"));
			parent1.add(new DefaultMutableTreeNode("PHP从入门到精通"));
			parent1.add(new DefaultMutableTreeNode("VB从入门到精通"));
			root.add(parent1);
			DefaultMutableTreeNode parent2=new DefaultMutableTreeNode("编程词典系列");
			parent2.add(new DefaultMutableTreeNode("Java编程词典"));
			parent2.add(new DefaultMutableTreeNode("PHP编程词典"));
			parent2.add(new DefaultMutableTreeNode("VB编程词典"));
			root.add(parent2);
			JTree tree=new JTree(root);
			DefaultTreeModel model=new DefaultTreeModel(root);//使用根节点创建树模型
			tree.setModel(model);
			/*ToolTipManager.sharedInstance().registerComponent(tree);//为树注册提示信息
			//利用映射保存提示信息
			Map<DefaultMutableTreeNode,String>map=new HashMap<DefaultMutableTreeNode,String>();
			map.put(root, "明日科技");
			map.put(parent1, "明日科技");
			map.put(parent2, "明日科技");
			tree.setCellRenderer(new ToolTipNode(map));//设置新的渲染起*/
			JTextField textField=new JTextField();//创建文本域对象
			textField.setFont(new Font("微软雅黑",Font.PLAIN, 16));
			TreeCellEditor editor=new DefaultCellEditor(textField);//创建树编辑器
			tree.setEditable(true);
			tree.setCellEditor(editor);//使用树编辑器
			getContentPane().add(tree, BorderLayout.CENTER);
			
	}
}

最后

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