public void testReadWriteWithNIO() throws Exception {
		byte[] data = FileUtils.readWithNIO("g:\\test\\a.jpg");
		FileUtils.writeWithNIO(data, "g:\\test\\aa2.jpg");
		data = FileUtils.readWithNIO("g:\\test\\t.txt");
		FileUtils.writeWithNIO(data, "g:\\test\\tt2.txt");

		data = FileUtils.readWithNIO("g:\\test\\t.txt", "utf-8");
		FileUtils.writeWithNIO(data, "gbk", "g:\\test\\tttt.txt");
	}