使用DOM4J生成文件夹XML结构数据

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package com.xmgj.jjt.util;import java.io.File;import java.io.FileOutputStream;import java.text.SimpleDateFormat;import java.util.Calendar;import java.util.GregorianCalendar;import org.dom4j.Document;import org.dom4j.DocumentHelper;import org.dom4j.Element;/** * 读取本地文件中的所有文件目录结构及文件大小 *  * @author Administrator * */public class XMLtest extends Thread {@Overridepublic void run() {try {Long start = System.currentTimeMillis();String name = Thread.currentThread().getName();System.err.println("当前线程名:" + name);File file = new File("D:\\jjt-front\\jw\\jw\\jw-web\\src\\main");Document doc = DocumentHelper.createDocument();Element el = doc.addElement(file.getName());el = getFile(file, el);File docFile = new File("d:" + "/目录结构.xml");if (!docFile.exists()) {docFile.createNewFile();FileOutputStream fos = new FileOutputStream(docFile);fos.write(doc.asXML().getBytes());fos.flush();fos.close();}Long end = System.currentTimeMillis();System.out.println("目录建立成功! 耗时:" + (end - start) + "ms");} catch (Exception e) {System.err.println("异常" + e);}}public static Element getFile(File file, Element el) {try {File[] list = file.listFiles();if (list != null && list.length > 0) {for (File f : list) {if (f.isDirectory()) {// 目录Element e = el.addElement("Folder");e.addAttribute("name", f.getName());e.addAttribute("lastModify",parseDate(f.lastModified()));getFile(f, e);} else {// 文件Element e = el.addElement("File");e.addAttribute("name", f.getName());e.addAttribute("lastModify",parseDate(f.lastModified()));e.addAttribute("size", parseSize(f.length()));}System.out.println(el.asXML());}}return el;} catch (Exception e) {System.err.println("异常" + e);}return null;}public static String parseSize(Long l) {String strSize = "0";if (l < 1000) {strSize = l + "B";} else if (l < 1000 * 1000) {strSize = l / 1000 + "." + l % 1000 + "K";} else if (l < 1000 * 1000 * 1000) {strSize = l / (1000 * 1000) + "." + l % (1000 * 1000) + "M";} else if (l < 1000 * 1000 * 1000 * 1000) {strSize = l / (1000 * 1000 * 1000) + "." + l % (1000 * 1000 * 1000)+ "G";}return strSize;}public static String parseDate(Long l) {Calendar calendar = GregorianCalendar.getInstance();calendar.setTimeInMillis(l);SimpleDateFormat sdf = new SimpleDateFormat("yyyy-MM-dd hh:mm:ss");return sdf.format(calendar.getTime());}public static void main(String[] args) {try {File[] file = File.listRoots();for (File f : file) {XMLtest tr = new XMLtest();tr.setName(f.getName());tr.setPriority(MAX_PRIORITY);tr.start();}} catch (Exception e) {System.err.println("异常" + e);}}}
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