javafx的tree操作解答

Question

本女子初学javafx，想请教高手把下面代码用fx重写一下对比学习，紧急求助麻烦了麻烦了

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() { public void mousePressed(MouseEvent e) { try { TreePath tp = tree.getPathForLocation(e.getX(), e.getY()); String ttt=tp.getLastPathComponent().toString(); System.out.println(ttt+"#############"); System.out.println("----------->"+tp); if (tp != null) { treePath = tp; int size = treePath.getPath().length; System.out.println("------>"+size); StringBuffer pathname = new StringBuffer(); if (size > 0) { File file = new File(ttt+"\"); File[] list = file.listFiles(); for (int i = 0; i < list.length; i++) { String[] strings = list[i].getPath().split("////"); for(int j=0;j<strings.length;j++){ System.out.println(strings[j]+"%%%%%%%%%%%%%%%%%%%%"); } DefaultMutableTreeNode node = new DefaultMutableTreeNode(strings[strings.length - 1]); ((DefaultMutableTreeNode) tp.getLastPathComponent()).add(node); } } } } catch (Exception e1) { System.out.println("can not open"); } } }; tree.addMouseListener(ml); tree.setShowsRootHandles(true); tree.setRootVisible(true); JScrollPane scrPane = new JScrollPane(tree); add(scrPane); } public static void main(String[] args) { JFrame jFrame = new JFrame("Explorer"); jFrame.setLayout(new BorderLayout()); jFrame.add(new ExplorerTree()); jFrame.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE); jFrame.setSize(300, 700); jFrame.setVisible(true); }