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  • java 文件移动

    一:
    //文件原地址
    File oldFile = new File("c:/test.xls");
    //文件新(目标)地址
    String newPath = "c:/test/";
    //new一个新文件夹
    File fnewpath = new File(newPath);
    //判断文件夹是否存在
    if(!fnewpath.exists())
    fnewpath.mkdirs();
    //将文件移到新文件里
    File fnew = new File(newPath +oldFile.getName());
    oldFile.renameTo(fnew);

    二:(使用java复制移动文件 )
    /**
    * Moving a File to Another Directory
    * @param srcFile eg: c:\windows\abc.txt
    * @param destPath eg: c:\temp
    * @return success
    */
    public static boolean move(String srcFile, String destPath){
    // File (or directory) to be moved
    File file = new File(srcFile);

    // Destination directory
    File dir = new File(destPath);

    // Move file to new directory
    boolean success = file.renameTo(new File(dir, file.getName()));

    return success;
    }

    三:(java删除 移动文件)
    File f=new File("c:\\Autoexec.bat");
    f.renameTo("d:\\Autoexec.bat");//移动
    f.delete();//删除

    import java.io.*;

    public class MoveFile {
    public static void main(String[] args)throws IOException{
    File f=new File("d:\\myHomework\\Work");
    File fileList[]=f.listFiles();
    for(int i=0;i<fileList.length ;i++) {
    fileList[i].renameTo(new File("d:\\myHomework\\Backup\\" + fileList[i].getName()));
    }
    }

    四:java操作文件(创建,删除,复制,剪切)

    package OALogic.sql.data;
    import java.io.*;

    public class FileOperate {
    public FileOperate() {
    }

    public static void main(String args[]){
    newFolder("D:/100");

    }

    /**
    * 新建目录
    * @param folderPath String 如 c:/fqf
    * @return boolean
    */
    public static 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) {
    System.out.println("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 static 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 static 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 static 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 static 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 static 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 static 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 static 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 static void moveFolder(String oldPath, String newPath) {
    copyFolder(oldPath, newPath);
    delFolder(oldPath);

    }
    }
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  • 原文地址:https://www.cnblogs.com/kevinge/p/1386815.html
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