Java目录树控件

//package com.gao;

import java.awt.BorderLayout;
import java.awt.event.MouseAdapter;
import java.awt.event.MouseEvent;
import java.awt.event.MouseListener;
import java.io.File;

import javax.swing.JFrame;
import javax.swing.JPanel;
import javax.swing.JScrollPane;
import javax.swing.JTree;
import javax.swing.tree.DefaultMutableTreeNode;
import javax.swing.tree.TreePath;

public class ExplorerTree extends JPanel {
    private JTree tree;//创建默认的树
    private TreePath treePath;//路径
    int t=0;
    public ExplorerTree() {
    
        this.setLayout(new BorderLayout());
        DefaultMutableTreeNode root = new DefaultMutableTreeNode("我的计算机");//设置跟节点
        tree = new JTree(root);
        File[] roots = File.listRoots();
        for (int i = 0; i < roots.length; i++) {
            DefaultMutableTreeNode node = new DefaultMutableTreeNode(roots[i].getPath());
            root.add(node);//增加到根节点
        }
        MouseListener ml = new MouseAdapter() {