java 遍历文件夹和文件

	public static void traverseFolder(String path) {
		File file = new File(path);
		if (file.exists()) {
			File[] files = file.listFiles();
			if (files.length == 0) {
				System.out.println("文件夹是空的!");
				return;
			} else {
				for (File file2 : files) {
					if (file2.isDirectory()) {
						System.out.println("文件夹:" + file2.getAbsolutePath());
						traverseFolder(file2.getAbsolutePath());
					} else {
						System.out.println("文件:" + file2.getAbsolutePath());
					}
				}
			}
		} else {
			System.out.println("文件不存在!");
		}
	}

MethodUtil.traverseFolder("D:/tools");