public static void getDirectory(String pathname) {
		Path path = new File(pathname).toPath();
		try {
			DirectoryStream<Path> children = Files.newDirectoryStream(path);
			if (children != null) {

				for (Path child : children) {
					// System.out.println("Dir==>"+child.toAbsolutePath());

					File file = new File(child.toString());
					if(file.isDirectory()){
						System.out.println("是文件夹"+child.toString());
						getSubFile(file);

					}
					if(file.isFile()){
						System.out.println("是文件"+child.toString());
					}
				}
			}

		} catch (IOException e) {
			e.printStackTrace();
		}
	}

	private static void getSubFile(File file) throws IOException {
		DirectoryStream<Path> twoChildren = Files.newDirectoryStream(file.toPath());
		if (twoChildren != null) {
			for (Path twoChild : twoChildren) {
				File fileTwo = new File(twoChild.toString());

				if(fileTwo.isDirectory()){
					System.out.println("是文件夹"+twoChild.toString());
					getSubFile(fileTwo);

				}
				if(fileTwo.isFile()){
					System.out.println("是文件"+twoChild.toString());
				}

			}
		}
	}

	public static void main(String[] args) {
		getDirectory("D:\\diaodutai");
	}