@Override
	public String toString() {
		if(useJdkToStringStyle){
			return super.toString();
		}
		return toString(this.timeZone);
	}
@Test
	public void toStringTest2() {
		DateTime dateTime = new DateTime("2017-01-05 12:34:23", DatePattern.NORM_DATETIME_FORMAT);

		String dateStr = dateTime.toString(DatePattern.UTC_WITH_ZONE_OFFSET_PATTERN);
		assertEquals("2017-01-05T12:34:23+0800", dateStr);

		dateStr = dateTime.toString(DatePattern.UTC_WITH_XXX_OFFSET_PATTERN);
		assertEquals("2017-01-05T12:34:23+08:00", dateStr);
	}