public static void getFiles(String path) {
 
  File file = new File(path);
  // 如果這個(gè)路徑是文件夾
  if (file.isDirectory()) {
    // 獲取路徑下的所有文件
    File[] files = file.listFiles();
    for (int i = 0; i < files.length; i++) {
      // 如果還是文件夾 遞歸獲取里面的文件 文件夾
      if (files[i].isDirectory()) {
        System.out.println("目錄：" + files[i].getPath());
        getFiles(files[i].getPath());
 
      } else {
        System.out.println("文件：" + files[i].getName()); // files[i].getPath());
      }
    }
 
  } else {
 
    System.out.println("文件：" + file.getPath());
 
  }
}

public static File[] getFilter(String strFilePath, String strExtension) {
 
  File[] list = new File(strFilePath).listFiles();
   
  for(File file : list)
  {
    if(file.isFile())
    {
      if (file.getName().endsWith(strExtension)) {
        System.out.println(file.getAbsolutePath());
      }
    }
  }
 
  return list;
}

public class GetFileName
{
  public static String [] getFileName(String path)
  {
    File file = new File(path);
    String [] fileName = file.list();
    return fileName;
  }
  public static void getAllFileName(String path,ArrayList<String> fileName)
  {
    File file = new File(path);
    File [] files = file.listFiles();
    String [] names = file.list();
    if(names != null)
    fileName.addAll(Arrays.asList(names));
    for(File a:files)
    {
      if(a.isDirectory())
      {
        getAllFileName(a.getAbsolutePath(),fileName);
      }
    }
  }
  public static void main(String[] args)
  {
    String [] fileName = getFileName("F:\\xiaoshuo");
    for(String name:fileName)
    {
      System.out.println(name);
    }
    System.out.println("--------------------------------");
    ArrayList<String> listFileName = new ArrayList<String>(); 
    getAllFileName("F:\\xiaoshuo",listFileName);
    for(String name:listFileName)
    {
      System.out.println(name);
    }
     
  }
}