目录

工具类


public class DateUtil {
   


//将 格式为 yyyy-MM-dd字符串类型的 时间 转为 Date类型

	public static Date parse(String strDate) throws ParseException {
   
		SimpleDateFormat sdf = new SimpleDateFormat("yyyy-MM-dd");
		return sdf.parse(strDate);
	}





// 根据出生日期 获取 到年龄
	public static String getAge(String date) {
   

		try {
   
			Date birthDay = parse(date);
			Calendar cal = Calendar.getInstance();
			if (cal.before(birthDay)) {
   
				//出生日期晚于当前时间，无法计算
				throw new IllegalArgumentException(
					"The birthDay is before Now.It's unbelievable!");
			}
			//当前年份
			int yearNow = cal.get(Calendar.YEAR);
			//当前月份
			int monthNow = cal.get(Calendar.MONTH);
			//当前日期
			int dayOfMonthNow = cal.get(Calendar.DAY_OF_MONTH);
			cal.setTime(birthDay);
			int yearBirth = cal.get(Calendar.YEAR);
			int monthBirth = cal.get(Calendar.MONTH);
			int dayOfMonthBirth = cal.get(Calendar.DAY_OF_MONTH);
			//计算整岁数
			int age = yearNow - yearBirth;
			if (monthNow <= monthBirth) {
   
				if (monthNow == monthBirth) {
   
					if (dayOfMonthNow < dayOfMonthBirth){
   
						//当前日期在生日之前，年龄减一
						age--;
					}
				} else {
   
					age--;//当前月份在生日之前，年龄减一
				}
			} return age+"";
		}catch (Exception e){
   

		}
		return "未知";
	}







/** * 判断时间是否在时间段内 * * @param nowTime * @param beginTime * @param endTime * @return */
    public static boolean belongCalendar(Date nowTime, Date beginTime,
                                         Date endTime) {
   
        Calendar date = Calendar.getInstance();
        date.setTime(nowTime);

        Calendar begin = Calendar.getInstance();
        begin.setTime(beginTime);

        Calendar end = Calendar.getInstance();
        end.setTime(endTime);

        if (date.after(begin) && date.before(end)) {
   
            return true;
        } else {
   
            return false;
        }
    }







	/** * isodate时间格式转换 * @param datetime Thu Jul 29 22:31:27 CST 2010 * @return */
	public static String getISODateStr(String datetime){
   
		SimpleDateFormat sdf = new SimpleDateFormat("EEE MMM dd HH:mm:ss z yyyy", java.util.Locale.US);
		Date date = null;
		try {
   
			date = sdf.parse(datetime);
		} catch (ParseException e) {
   
			e.printStackTrace();
		}
		String newDate = new SimpleDateFormat("yyyy-MM-dd HH:mm:ss").format(date);
		return newDate;
	}