java展示文件夹目录结构

package com;import java.io.File;public class TestFileTree {public static void main(String[] args) {String path = "D:/JavaXM/Proxy";File file = new File(path);System.out.println(file.getName());tree(file,1);}public static void tree(File f,int level) {String preStr = "";for(int i=0;i<level;i++) {preStr += "--";}File[] childs = f.listFiles();for(int i=0;i<childs.length;i++) {System.out.println(preStr + childs[i].getName());if(childs[i].isDirectory()){tree(childs[i],level + 1);}}}}