public static DateTime parse(CharSequence dateStr, DateFormat dateFormat) {
		return new DateTime(dateStr, dateFormat);
	}
@Test
	public void parseToDateTimeTest4() {
		final String dateStr1 = "2017-02-01 12:23:45";
		final String dateStr2 = "20170201122345";

		final DateTime dt1 = DateUtil.parse(dateStr1);
		final DateTime dt2 = DateUtil.parse(dateStr2);
		assertEquals(dt1, dt2);
	}