Java(脚本) 文件批量重命名（精简版）

package sample;


import java.io.File;
import java.util.ArrayList;
import java.util.List;

public class Main {
    public static List<File> getFiles(String path) {
        List<File> files = new ArrayList<>();
        File file = new File(path);
        File[] tempList = file.listFiles();
        if (tempList == null) return files;

        for (int i = 0; i < tempList.length; i++) {
            if (tempList[i].isFile()) {
                files.add(tempList[i]);
            } else if (tempList[i].isDirectory()) {
                //这里就不递归了，
                //files.addAll(getFiles(tempList[i].getPath()));
            }
        }
        return files;
    }

    public static void main(String[] args) {
        //这里是路径
        String dir = System.getProperty("user.dir");

        List<File> files = getFiles(dir);

        int index = 1;

        for (File file : files) {
            String fileName = file.getName();

            int lastIndexOf = fileName.lastIndexOf(".");

            String suffix = fileName.substring(lastIndexOf);

            String path = file.getPath().replace(fileName, "");

            File newFile = new File(path + "desk_" + index + suffix);

            file.renameTo(newFile);

            index++;
        }
    }
}