文章目录

• • 文件操作工具类
  • • 删除文件及子文件，当 includeSelfDir=true，删除文件夹自身(见代码样例)
    • 文件重命名(见代码样例)
    • 文件复制(见代码样例)
    • 文件更换目录(见代码样例)
    • 新建文件(见代码样例)
    • 新建一级目录(见代码样例)
    • 新建多级目录(见代码样例)
    • 获取所有文件名-是否包含子文件(见代码样例)
    • 获取所有文件绝对路径-是否包含子文件(见代码样例)
    • 获取所有文件绝对路径-是否包含子文件(见代码样例)
    • 代码样例

文件操作工具类

删除文件及子文件，当 includeSelfDir=true，删除文件夹自身(见代码样例)

文件重命名(见代码样例)

文件复制(见代码样例)

文件更换目录(见代码样例)

新建文件(见代码样例)

新建一级目录(见代码样例)

新建多级目录(见代码样例)

获取所有文件名-是否包含子文件(见代码样例)

获取所有文件绝对路径-是否包含子文件(见代码样例)

获取所有文件绝对路径-是否包含子文件(见代码样例)

代码样例

import java.io.File;
import java.io.FileWriter;
import java.io.IOException;
import java.nio.file.Files;
import java.nio.file.StandardCopyOption;
import java.util.List;
import java.util.Objects;import com.google.common.collect.Lists;
import lombok.experimental.UtilityClass;
import org.apache.commons.collections4.ListUtils;
import org.junit.platform.commons.util.Preconditions;
import org.junit.platform.commons.util.StringUtils;/*** @Title:文件操作工具类* @Description:* @Copyright: Copyright(c)2022* @Company: bestcxx* @Author: wujie* @Date:2022-12-04* @Updatedby:*/
@UtilityClass
public class FileUtils {public static void main(String[] args) throws IOException {String path2 = "/Users/aaa/Desktop/mkdirtest";String path3 = "/Users/aaa/Desktop/mkdirtest2/sub";mkdir(path2);mkdir(path3);String path4 = "/Users/aaa/Desktop/mkdirtest/sub1/";String path5 = "/Users/aaa/Desktop/mkdirtest/sub2/sub21/sub31";mkdirs(path4);mkdirs(path5);System.out.println(getDerictFileNameByPath(path3));System.out.println(getAllFileNameByPath(path3));System.out.println(createFile(path4 + "/sub1/", "b.word"));System.out.println(moveFile(path4 + "/sub1/b.word", path4 + "/sub1/g.word"));System.out.println(copyFile(path4 + "/sub1/g.word", path4 + "/sub1/h.word"));System.out.println(renameFile(path4 + "/sub1/h.word", path4 + "/sub1/h2.word"));String path6 = "/Users/aaa/Desktop/mkdirtest";System.out.println(deleteFileOrAllSubFile(path6,true));}/*** 删除文件及子文件，当 includeSelfDir=true，删除文件夹自身** @param originPath 根文件夹* @param file* @return* @throws IOException*/private boolean deleteFileOrSubFile(String originPath,File file,boolean includeSelfDir) throws IOException {// 待删除目录不能以 / 结尾Preconditions.condition(originPath.lastIndexOf("/")+1 != originPath.length(),"待删除目录结尾不能以 / 结尾");if (file.isFile()) {String tem = file.getAbsolutePath();if(file.delete()){System.out.println(String.format("%s 被删除",tem));}} else if (file.isDirectory()) {for (File subFile : file.listFiles()) {deleteFileOrSubFile(originPath,subFile,includeSelfDir);}String tem = file.getAbsolutePath();if(originPath.equals(tem)){if(includeSelfDir && file.delete()){System.out.println(String.format("%s 入参根目录被删除",tem));}}else if(file.delete()){System.out.println(String.format("%s 被删除",tem));}}return true;}/*** 删除文件及子文件，当 includeSelfDir=true，删除文件夹自身** @param fullPath* @return* @throws IOException*/public boolean deleteFileOrAllSubFile(String fullPath,boolean includeSelfDir) throws IOException {return deleteFileOrSubFile(fullPath,new File(fullPath),includeSelfDir);}public boolean renameFile(String fullPathFrom, String fullPathTarget) throws IOException {File fileFrom = new File(fullPathFrom);File fileTarget = new File(fullPathTarget);return fileFrom.renameTo(fileTarget);}public boolean copyFile(String fullPathFrom, String fullPathTarget) throws IOException {File fileFrom = new File(fullPathFrom);File fileTarget = new File(fullPathTarget);Files.copy(fileFrom.toPath(), fileTarget.toPath(), StandardCopyOption.REPLACE_EXISTING);return true;}public boolean moveFile(String fullPathFrom, String fullPathTarget) throws IOException {File fileFrom = new File(fullPathFrom);File fileTarget = new File(fullPathTarget);Files.move(fileFrom.toPath(), fileTarget.toPath(), StandardCopyOption.REPLACE_EXISTING);return true;}public boolean createFile(String prePath, String fileName) throws IOException {String targatFilePath = prePath + fileName;File targetFile = new File(targatFilePath);if (targetFile.isFile()) {System.out.println(String.format("%s 目标文件已存在 ", targatFilePath));return true;}File parentPath = new File(prePath);if (parentPath.isDirectory()) {System.out.println(String.format("%s 层级目录结构已存在 ", prePath));} else {System.out.println(String.format("层级目录结构初始化 %s ", prePath));mkdirs(prePath);}new FileWriter(prePath + fileName).close();System.out.println(String.format("目标文件初始化 %s", targatFilePath));return true;}/*** 新建单级目录** @param path* @return*/public boolean mkdir(String path) {File file = new File(path);if (StringUtils.isNotBlank(file.getParent())) {return file.mkdir();}return false;}/*** 新建多级目录** @param path* @return*/public boolean mkdirs(String path) {File file = new File(path);return file.mkdirs();}public List getDerictFileNameByPath(String path) {File file = new File(path);if (!file.exists()) {return Lists.newArrayList();}return getFileNames(file, Lists.newArrayList(), true);}public List getAllFileNameByPath(String path) {File file = new File(path);if (!file.exists()) {return Lists.newArrayList();}return getFileNames(file, Lists.newArrayList(), false);}public List getAbsoluteFileNameByPath(String path) {File file = new File(path);if (!file.exists()) {return Lists.newArrayList();}return getAbsoluteFileName(file, Lists.newArrayList(), false);}public List getAllFilesByPath(String path) {File file = new File(path);if (!file.exists()) {return Lists.newArrayList();}return getAllFiles(file, Lists.newArrayList(), false);}/*** 默认不返回 隐藏文件** @param file* @param fileNames* @param onlyDerictFile* @return*/public List getFileNames(File file, List fileNames, boolean onlyDerictFile) {if (Objects.isNull(file)) {return ListUtils.emptyIfNull(fileNames);}File[] files = file.listFiles();for (File f : files) {if (f.isDirectory() && !onlyDerictFile) {getFileNames(f, fileNames, onlyDerictFile);} else if (f.isFile() && !f.isHidden()) {//不要隐藏文件fileNames.add(f.getName());}}return fileNames;}/*** 默认不返回 隐藏文件** @param file* @param allFiles* @param onlyDerictFile* @return*/public List getAbsoluteFileName(File file, List allFiles, boolean onlyDerictFile) {if (Objects.isNull(file)) {return ListUtils.emptyIfNull(allFiles);}File[] files = file.listFiles();for (File f : files) {if (f.isDirectory() && !onlyDerictFile) {getAbsoluteFileName(f, allFiles, onlyDerictFile);} else if (f.isFile() && !f.isHidden()) {//不要隐藏文件allFiles.add(f.getAbsolutePath());}}return allFiles;}/*** 默认不返回 隐藏文件** @param file* @param allFiles* @param onlyDerictFile* @return*/public List getAllFiles(File file, List allFiles, boolean onlyDerictFile) {if (Objects.isNull(file)) {return ListUtils.emptyIfNull(allFiles);}File[] files = file.listFiles();for (File f : files) {if (f.isDirectory() && !onlyDerictFile) {getAllFiles(f, allFiles, onlyDerictFile);} else if (f.isFile() && !f.isHidden()) {//不要隐藏文件allFiles.add(f);}}return allFiles;}
}