public class GetFileName
{
    public static List<String> getAllFileName(String path,List<String> resultFileName){
        File file = new File(path);
File[] files = file.listFiles();
        if(files == null) return resultFileName;// 判断目录下是不是空的
for (File f : files) {
            if(f.isDirectory()){// 判断是否文件夹
resultFileName.add(f.getPath());
getAllFileName(f.getAbsolutePath(),resultFileName);// 调用自身,查找子目录
}else
resultFileName.add(f.getPath());
}
        return resultFileName;
}



    public static void main(String[] args)
    {

        List<String> resultFileName = new ArrayList<>();
List<String> fileNames = getAllFileName("D:\\work",resultFileName);
        for (String name:fileNames){
            System.out.println(name);
}
    }
}