操作文件、文件夹的java方法

import java.io.File;import java.io.FileInputStream;import java.io.FileOutputStream;import java.io.FileWriter;import java.io.InputStream;import java.io.PrintWriter;import org.slf4j.Logger;import org.slf4j.LoggerFactory;public class FileOperate {private Logger logger=LoggerFactory.getLogger(FileOperate.class); public FileOperate() {}/** * 新建目录 *  * @param folderPath *            String 如 c:/fqf * @return boolean */public void newFolder(String folderPath) {try {String filePath = folderPath;filePath = filePath.toString();java.io.File myFilePath = new java.io.File(filePath);if (!myFilePath.exists()) {myFilePath.mkdir();}} catch (Exception e) {logger.error("新建目录操作出错");e.printStackTrace();}}/** * 新建文件 *  * @param filePathAndName *            String 文件路径及名称 如c:/fqf.txt * @param fileContent *            String 文件内容 * @return boolean */public void newFile(String filePathAndName, String fileContent) {try {String filePath = filePathAndName;filePath = filePath.toString();File myFilePath = new File(filePath);if (!myFilePath.exists()) {myFilePath.createNewFile();}FileWriter resultFile = new FileWriter(myFilePath);PrintWriter myFile = new PrintWriter(resultFile);String strContent = fileContent;myFile.println(strContent);resultFile.close();} catch (Exception e) {System.out.println("新建目录操作出错");e.printStackTrace();}}/** * 删除文件 *  * @param filePathAndName *            String 文件路径及名称 如c:/fqf.txt * @param fileContent *            String * @return boolean */public void delFile(String filePathAndName) {try {String filePath = filePathAndName;filePath = filePath.toString();java.io.File myDelFile = new java.io.File(filePath);myDelFile.delete();} catch (Exception e) {System.out.println("删除文件操作出错");e.printStackTrace();}}/** * 删除文件夹 *  * @param filePathAndName *            String 文件夹路径及名称 如c:/fqf * @param fileContent *            String * @return boolean */public void delFolder(String folderPath) {try {delAllFile(folderPath); // 删除完里面所有内容String filePath = folderPath;filePath = filePath.toString();java.io.File myFilePath = new java.io.File(filePath);myFilePath.delete(); // 删除空文件夹} catch (Exception e) {System.out.println("删除文件夹操作出错");e.printStackTrace();}}/** * 删除文件夹里面的所有文件 *  * @param path *            String 文件夹路径 如 c:/fqf */public void delAllFile(String path) {File file = new File(path);if (!file.exists()) {return;}if (!file.isDirectory()) {return;}String[] tempList = file.list();File temp = null;for (int i = 0; i < tempList.length; i++) {if (path.endsWith(File.separator)) {temp = new File(path + tempList[i]);} else {temp = new File(path + File.separator + tempList[i]);}if (temp.isFile()) {temp.delete();}if (temp.isDirectory()) {delAllFile(path + "/" + tempList[i]);// 先删除文件夹里面的文件delFolder(path + "/" + tempList[i]);// 再删除空文件夹}}}/** * 复制单个文件 *  * @param oldPath *            String 原文件路径 如：c:/fqf.txt * @param newPath *            String 复制后路径 如：f:/fqf.txt * @return boolean */public void copyFile(String oldPath, String newPath) {try {int bytesum = 0;int byteread = 0;File oldfile = new File(oldPath);if (oldfile.exists()) { // 文件存在时InputStream inStream = new FileInputStream(oldPath); // 读入原文件FileOutputStream fs = new FileOutputStream(newPath);byte[] buffer = new byte[1444];int length;while ((byteread = inStream.read(buffer)) != -1) {bytesum += byteread; // 字节数 文件大小System.out.println(bytesum);fs.write(buffer, 0, byteread);}inStream.close();}} catch (Exception e) {System.out.println("复制单个文件操作出错");e.printStackTrace();}}/** * 复制整个文件夹内容 *  * @param oldPath *            String 原文件路径 如：c:/fqf * @param newPath *            String 复制后路径 如：f:/fqf/ff * @return boolean */public void copyFolder(String oldPath, String newPath) {try {(new File(newPath)).mkdirs(); // 如果文件夹不存在 则建立新文件夹File a = new File(oldPath);String[] file = a.list();File temp = null;for (int i = 0; i < file.length; i++) {if (oldPath.endsWith(File.separator)) {temp = new File(oldPath + file[i]);} else {temp = new File(oldPath + File.separator + file[i]);}if (temp.isFile()) {FileInputStream input = new FileInputStream(temp);FileOutputStream output = new FileOutputStream(newPath+ "/" + (temp.getName()).toString());byte[] b = new byte[1024 * 5];int len;while ((len = input.read(b)) != -1) {output.write(b, 0, len);}output.flush();output.close();input.close();}if (temp.isDirectory()) {// 如果是子文件夹copyFolder(oldPath + "/" + file[i], newPath + "/" + file[i]);}}} catch (Exception e) {System.out.println("复制整个文件夹内容操作出错");e.printStackTrace();}}/** * 移动文件到指定目录 *  * @param oldPath *            String 如：c:/fqf.txt * @param newPath *            String 如：d:/fqf.txt */public void moveFile(String oldPath, String newPath) {copyFile(oldPath, newPath);delFile(oldPath);}/** * 移动文件到指定目录 *  * @param oldPath *            String 如：c:/fqf.txt * @param newPath *            String 如：d:/fqf.txt */public void moveFolder(String oldPath, String newPath) {copyFolder(oldPath, newPath);delFolder(oldPath);}}