Java的文件操作太基礎飛鴿傳書，缺乏很多實用工具，比如對目錄的操作，支持就非常的差了。如果你經常用Java操作文件或文件夾，你會覺得反復編寫這些代碼是令人沮喪的問題，而且要大量用到遞歸。 下面是的一個解決方案，借助Apache Commons IO工具包來簡單實現文件（夾）的復制、移動、刪除、獲取大小等操作，沒有經過嚴格測試，發現問題了請留言給我。 package zzvcom.cms.ccm.commons;

import org.apache.commons.io.FileUtils;
import org.apache.commons.logging.Log;
import org.apache.commons.logging.LogFactory;

import java.io.File;
import java.io.IOException;

/**
* 文件工具箱
*
* @author leizhimin 2008-12-13 21:12:58
*/
public final class FileTookit {
????????private static final Log log = LogFactory.getLog(FileTookit.class);

????????/**
???????? * 復制文件或者目錄,復制前后文件完全一樣。
???????? *
???????? * @param resFilePath 源文件路徑
???????? * @param distFolder????目標文件夾
???????? * @IOException 當操作發生異常時拋出
???????? */
????????public static void copyFile(String resFilePath, String distFolder) throws IOException {
????????????????File resFile = new File(resFilePath);
????????????????File distFile = new File(distFolder);
????????????????if (resFile.isDirectory()) {
????????????????????????FileUtils.copyDirectoryToDirectory(resFile, distFile);
????????????????} else if (resFile.isFile()) {
????????????????????????FileUtils.copyFileToDirectory(resFile, distFile, true);
????????????????}
????????}

????????/**
???????? * 刪除一個文件或者目錄
???????? *
???????? * @param targetPath 文件或者目錄路徑
???????? * @IOException 當操作發生異常時拋出
???????? */
????????public static void deleteFile(String targetPath) throws IOException {
????????????????File targetFile = new File(targetPath);
????????????????if (targetFile.isDirectory()) {
????????????????????????FileUtils.deleteDirectory(targetFile);
????????????????} else if (targetFile.isFile()) {
????????????????????????targetFile.delete();
????????????????}
????????}

????????/**
???????? * 移動文件或者目錄,移動前后文件完全一樣,如果目標文件夾不存在則創建。
???????? *
???????? * @param resFilePath 源文件路徑
???????? * @param distFolder????目標文件夾
???????? * @IOException 當操作發生異常時拋出
???????? */
????????public static void moveFile(String resFilePath, String distFolder) throws IOException {
????????????????File resFile = new File(resFilePath);
????????????????File distFile = new File(distFolder);
????????????????if (resFile.isDirectory()) {
????????????????????????FileUtils.moveDirectoryToDirectory(resFile, distFile, true);
????????????????} else if (resFile.isFile()) {
????????????????????????FileUtils.moveFileToDirectory(resFile, distFile, true);
????????????????}
????????}


????????/**
???????? * 重命名文件或文件夾
???????? *
???????? * @param resFilePath 源文件路徑
???????? * @param newFileName 重命名
???????? * @return 操作成功標識
???????? */
????????public static boolean renameFile(String resFilePath, String newFileName) {
????????????????String parentFilePath = new File(resFilePath).getParent();
????????????????String newFilePath = StringTookit.formatPath(parentFilePath + "/" + newFileName);
????????????????File resFile = new File(resFilePath);
????????????????File newFile = new File(newFilePath);
????????????????return resFile.renameTo(newFile);
????????}

????????/**
???????? * 讀取文件或者目錄的大小
???????? *
???????? * @param distFilePath 目標文件或者文件夾
???????? * @return 文件或者目錄的大小，如果獲取失敗，則返回-1
???????? */
????????public static Long genFileSize(String distFilePath) {
????????????????File distFile = new File(distFilePath);
????????????????if (distFile.isFile()) {
????????????????????????return distFile.length();
????????????????} else if (distFile.isDirectory()) {
????????????????????????return FileUtils.sizeOfDirectory(distFile);
????????????????}
????????????????return -1L;
????????}

}

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