Java读取文件夹下的指定类型的文件(包含子文件夹)

java如何获取文件下某种类型的文件呢，本文通过递归筛选实现此功能，代码如下：

import java.io.File;import java.util.ArrayList;import java.util.Iterator;import java.util.List;/**** @author yaohucaizi*/public class FileViewer {/*** 读取文件夹下所以文件** @param dirPath* @param fileTypes* @return*/public static List<String> getAllFilePathByDir_FilterByFileType(String dirPath,List<String> fileTypes) {String localClassFilePath = FileViewer.class.getResource("/").getPath();String contextFilePath = localClassFilePath.substring(1, localClassFilePath.length() - 16);contextFilePath = contextFilePath.replace("/", "\\");List<String> filePathList = new ArrayList<String>();for (int index = 0; index < fileTypes.size(); index++) {fileList = new ArrayList<String>();List arrayList = FileViewer.getListFiles(dirPath, fileTypes.get(index), true);if (arrayList.isEmpty()) {System.out.println("没有符号要求的文件");} else {for (Iterator i = arrayList.iterator(); i.hasNext();) {String temp = (String) i.next();temp = temp.replace(contextFilePath, "");//把根路径去掉 System.out.println(temp);filePathList.add(temp);}}}for (int replaceIndex = 0; replaceIndex < filePathList.size(); replaceIndex++) {filePathList.set(replaceIndex, filePathList.get(replaceIndex).replace("\\", "/"));}return filePathList;}public static List<String> fileList = new ArrayList<String>();/*** 添加文件后缀名称** @return*/public static List<String> suffixlist() {List<String> list = new ArrayList<String>();list.add("html");list.add("htm");return list;}/**** @param path 文件路径* @param suffix 后缀名* @param isdepth 是否遍历子目录* @return*/public static List getListFiles(String path, String suffix, boolean isdepth) {File file = new File(path);return FileViewer.listFile(file, suffix, isdepth);}public static List listFile(File f, String suffix, boolean isdepth) {// 是目录，同时需要遍历子目录 if (f.isDirectory() && isdepth == true) {File[] t = f.listFiles();for (int i = 0; i < t.length; i++) {listFile(t[i], suffix, isdepth);}} else {String filePath = f.getAbsolutePath();if (suffix != null) {int begIndex = filePath.lastIndexOf(".");// 最后一个.(即后缀名前面的.)的索引 String tempsuffix = "";if (begIndex != -1)// 防止是文件但却没有后缀名结束的文件 {tempsuffix = filePath.substring(begIndex + 1, filePath.length());}if (tempsuffix.equals(suffix)) {fileList.add(filePath);}} else {// 后缀名为null则为所有文件 fileList.add(filePath);}}return fileList;}public static void main(String[] args) {List<String> listResult = getAllFilePathByDir_FilterByFileType("D:\\netbeans workspace\\EDMProject\\trunk\\target\\EDMProject-1.0-SNAPSHOT\\upload\\template/1368683270902", suffixlist());System.out.println(listResult.size() + "\t" + listResult.get(0));}}