Question

我需要帮助重命名目录中的所有文件和文件夹，并在原始名称前添加一个字符。

这是重命名单个文件夹的方法：

File from = new File(sdcard,".DCIM");
File to = new File(sdcard,"DCIM");
from.renameTo(to);

Answer 1

所以，比如：

String path = Environment.getExternalStorageDirectory().toString()+"/MyDir";
Log.d("Files", "Path: " + path);
File f = new File(path);        
File file[] = f.listFiles();
Log.d("Files", "Size: "+ file.length);
for (int i=0; i < file.length; i++)
{
    file[i].renameTo(file[i].getName() + "x");
}

编辑：

要更改文件名，添加临时变量可能更清楚：

    String name = file[i].getName();
    name = name.substr(0, name.length() - 1);
    file[i].renameTo(name);

Answer 2

转到根文件夹并迭代它。只需检查您访问的文件夹是否是目录，您就可以为每个文件夹编写相同的逻辑。

public static void renameFile(String path) throws IOException {

        File root = new File(path);
        File[] list = root.listFiles();

        if (list == null)
            return;

        for (File f : list) {
            if (f.isDirectory()) {

                File from = new File(f,"."+f.getName());
                File to = new File(f,f.getName());
                from.renameTo(to);
                renameFile(f.getCanonicalPath());
            } else {
                System.out.println("File:" + f.getAbsoluteFile());
            }
        }
    }

    public static void main(String[] args) throws IOException {
        //Root path within which you want to change the folder names
        renameFile("c:\rootPath");
    }

请检查这是否对您有所帮助。

重命名目录中的所有文件夹

2 个答案: