Java遞迴擷取目錄下所有特定尾碼檔案__Java

一段非常簡單的java代碼，寫成了一個小util ：

package com.util;import java.io.File;import java.io.FileFilter;import java.util.List;public class FileUtil {/** * provide two default file filters */public static FileFilter DEFAULT_JSP_FILTER = new JSPFileFilter();public static FileFilter DEFAULT_TXT_FILTER = new TXTFileFilter();/** * This method will get all the target files under a specific directory *  * @param targetDir * @param filter * @param resultFiles * @return */public static List<File> filterTargetFiles(File targetDir,FileFilter filter, List<File> resultFiles) {/** * listFiles : only list the files in the current directory, not include * the files in the sub directories. */File[] files = targetDir.listFiles(filter);for (File file : files) {if (file.isDirectory()) {filterTargetFiles(file, filter, resultFiles);} else {resultFiles.add(file);}}return resultFiles;}private static class JSPFileFilter implements FileFilter {@Overridepublic boolean accept(File file) {if (file.isDirectory()) {return true;}String fileName = file.getName();return fileName.matches("(?i).+jsp$");}}private static class TXTFileFilter implements FileFilter {@Overridepublic boolean accept(File file) {if (file.isDirectory()) {return true;}String fileName = file.getName();return fileName.matches("(?i).+txt$");}}}

測試代碼 ：

package com.salmon;import java.io.File;import java.util.ArrayList;import java.util.List;import com.util.FileUtil;public class TestReadFiles {public static void main(String[] args) {String targetDirPath = "D:\\ZZZZTestDir";File targetDir = new File(targetDirPath);List<File> allFiles = new ArrayList<File>();allFiles = FileUtil.filterTargetFiles(targetDir, FileUtil.DEFAULT_TXT_FILTER, allFiles);// after get all the files, do the specific logic for the target filesdoTheLogic(allFiles);}/** * Get all the files in the target directory, here we could conduct any logic for the files *  * @param filesList */private static void doTheLogic(List<File> filesList){for(File file : filesList){System.out.println(file.getPath());}}}