如何在java中重命名文件夹

Question

我的文件夹结构是这样的

D:
|- Folder1
   |- File1
|- Folder2
   |- File2 

输出：

D:
|- Directory1   <- renamed
   |- File1 
|- Directory2   <- renamed
   |- File2 

问题是如何重命名文件夹下一级？

Answer 1

File dir = new File(dirPath);
if (!dir.isDirectory()) {
  System.err.println("There is no directory @ given path");
} else {
    System.out .println("Enter new name of directory(Only Name and Not Path).");
    String newDirName = scanner.nextLine();
    File newDir = new File(dir.getParent() + "\" + newDirName);
    dir.renameTo(newDir);
}

Answer 2

这是我解决问题的方法。

1. 我得到了指定深度的目录。
2. 使用更改的名称创建新目录
3. 使用 FileUtils (Apache Commons IO) 将文件复制到新文件夹。
4. 手动删除所有旧文件夹。

---

package com.so.practice;

import java.io.File;
import java.io.IOException;
import java.util.ArrayList;
import java.util.HashMap;
import java.util.List;
import org.apache.commons.io.FileUtils;

public class Sof {
    public static void main(String[] args) throws IOException {
        List<File> files = getDirs(new File("path to root folder"), 0); //level 0 is inside parent , level 1, and so on
        System.out.println(files);
        String[] paths = new String[files.size()];

        int i = 0;
        for (File file : files) {
            paths[i++] = file.getAbsolutePath();
        }
        String matchword = "Folder1";

        //File  f = null;
        HashMap<String, String > old_new = new HashMap<>();
        for (int j = 0; j < paths.length; j++) {
            System.out.println(paths[j]);
            String old_path = paths[j];
            String foldername = new File(paths[j]).getName();
            //02_PA__OPCON.MES.GC.Configuration 
            //02_Configuration

            if(old_path.contains(matchword)){
                paths[j] =paths[j].replaceAll(matchword, "Directory");

                old_new.put(old_path, paths[j]);

            }else{
                System.out.println("skipping->"+old_path);
            }
            //f = new File(paths[j]);
            //f.mkdirs();
        }

        for(String key : old_new.keySet()){
            FileUtils.copyDirectory(new File(key), new File(old_new.get(key)));
        }

        //FileUtils.copyDirectory(new File(old_new.get), new File(arg0));
     }

     static List<File> getDirs(File parent, int level){
        List<File> dirs = new ArrayList<File>(); //to store 
        for(File f: parent.listFiles()){
            if(f.isDirectory()) {
                if (level==0) dirs.add(f);
                else 
                    if (level > 0) dirs.addAll(getDirs(f,level-1)); //recursion
            }
        }
        return dirs;
    }
}