public static void main(String[] args) {
		// 時間文字
		String dateText = "2018-04-10T10:33:08.72";
		// 格式
		SimpleDateFormat formatter = new SimpleDateFormat("yyyy-MM-dd'T'HH:mm:ss.SSS");

		long time = 0;
		try {
			time = formatter.parse(dateText).getTime();
		} catch (ParseException e) {
			// TODO Auto-generated catch block
			e.printStackTrace();
		}
		System.out.println(time);
	}
 

參考>http://www.028888.net/archives/2016_01_716.html