dateutil.java

OBPM是一个开源

	static public int getThisYearMonth() throws ParseException {
		Date today = Calendar.getInstance().getTime();
		return (today.getYear() + 1900) * 100 + today.getMonth() + 1;
	}

	static public int getYearMonth(Date date) throws ParseException {
		return (date.getYear() + 1900) * 100 + date.getMonth() + 1;
	}

	// 获取相隔月数
	static public long getDistinceMonth(String beforedate, String afterdate)
			throws ParseException {
		SimpleDateFormat d = new SimpleDateFormat("yyyy-MM-dd");
		long monthCount = 0;
		try {
			java.util.Date d1 = d.parse(beforedate);
			java.util.Date d2 = d.parse(afterdate);

			monthCount = (d2.getYear() - d1.getYear()) * 12 + d2.getMonth()
					- d1.getMonth();
			// dayCount = (d2.getTime()-d1.getTime())/(30*24*60*60*1000);

		} catch (ParseException e) {
			System.out.println("Date parse error!");
			// throw e;
		}
		return monthCount;
	}

	// 获取相隔天数
	static public long getDistinceDay(String beforedate, String afterdate)
			throws ParseException {
		SimpleDateFormat d = new SimpleDateFormat("yyyy-MM-dd");
		long dayCount = 0;
		try {
			java.util.Date d1 = d.parse(beforedate);
			java.util.Date d2 = d.parse(afterdate);

			dayCount = (d2.getTime() - d1.getTime()) / (24 * 60 * 60 * 1000);

		} catch (ParseException e) {
			System.out.println("Date parse error!");
			// throw e;
		}
		return dayCount;
	}

	// 获取相隔天数
	static public long getDistinceDay(Date beforedate, Date afterdate)
			throws ParseException {
		long dayCount = 0;

		try {
			dayCount = (afterdate.getTime() - beforedate.getTime())
					/ (24 * 60 * 60 * 1000);

		} catch (Exception e) {
			// System.out.println("Date parse error!");
			// // throw e;
		}
		return dayCount;
	}

	static public long getDistinceDay(java.sql.Date beforedate,
			java.sql.Date afterdate) throws ParseException {
		long dayCount = 0;

		try {
			dayCount = (afterdate.getTime() - beforedate.getTime())
					/ (24 * 60 * 60 * 1000);

		} catch (Exception e) {
			// System.out.println("Date parse error!");
			// // throw e;
		}
		return dayCount;
	}

	// 获取相隔天数
	static public long getDistinceDay(String beforedate) throws ParseException {
		return getDistinceDay(beforedate, getTodayStr());
	}

	// 获取相隔时间数
	static public long getDistinceTime(String beforeDateTime,
			String afterDateTime) throws ParseException {
		SimpleDateFormat d = new SimpleDateFormat("yyyy-MM-dd hh:mm:ss");
		long timeCount = 0;
		try {
			java.util.Date d1 = d.parse(beforeDateTime);
			java.util.Date d2 = d.parse(afterDateTime);

			timeCount = (d2.getTime() - d1.getTime()) / (60 * 60 * 1000);

		} catch (ParseException e) {
			System.out.println("Date parse error!");
			throw e;
		}
		return timeCount;
	}

	// 获取相隔时间数
	static public long getDistinceTime(String beforeDateTime)
			throws ParseException {
		return getDistinceTime(beforeDateTime, new Timestamp(System
				.currentTimeMillis()).toLocaleString());
	}

	// 获取相隔分钟数
	static public long getDistinceMinute(String beforeDateTime,
			String afterDateTime) throws ParseException {
		SimpleDateFormat d = new SimpleDateFormat("yyyy-MM-dd HH:mm:ss");
		long timeCount = 0;
		try {
			java.util.Date d1 = d.parse(beforeDateTime);
			java.util.Date d2 = d.parse(afterDateTime);

			timeCount = (d2.getTime() - d1.getTime()) / (60 * 1000);

		} catch (ParseException e) {
			System.out.println("Date parse error!");
			throw e;
		}
		return timeCount;
	}

	// 获取相隔分钟数
	static public long getDistinceMinute(String afterDateTime)
			throws ParseException {
		return getDistinceMinute(new Timestamp(System.currentTimeMillis())
				.toLocaleString(), afterDateTime);
	}

	// 判断是否超出指定相隔时间范围内
	static public boolean isOvertime(String beforeDateTime, String timeCount) {
		boolean exceed = false;
		try {
			long count1 = Long.parseLong(timeCount);
			long count2 = getDistinceTime(beforeDateTime);
			if (count1 < count2) {
				exceed = true;
			}

		} catch (Exception ex) {
			ex.printStackTrace();
		}
		return exceed;
	}

	static public String getTimestamStr(Timestamp timestamp) {
		SimpleDateFormat format = new SimpleDateFormat("yyyy-MM-dd HH:mm:ss");
		return format.format(timestamp);
	}

	static public String getTimeStr(Time time) {
		SimpleDateFormat format = new SimpleDateFormat("HH:mm:ss");
		return format.format(time);
	}

	// 判断后者时间是否为前者时间前
	static public boolean isBeforeCheckDate(String checkdate,
			java.util.Date auditDate) throws ParseException {
		java.util.Date cd;
		try {
			cd = new java.util.Date(parseDate(checkdate).getTime());

		} catch (ParseException ex) {
			System.out.println(ex);
			return false;
		}
		return isBeforeCheckDate(cd, auditDate);
	}

	static private boolean isBeforeCheckDate(java.util.Date checkdate,
			java.util.Date auditDate) throws ParseException {
		return auditDate.before(checkdate);
	}

	static public java.sql.Date getNextMonthDate(java.sql.Date date)
			throws ParseException {
		Calendar scalendar = new GregorianCalendar();
		scalendar.setTime(date);
		scalendar.add(Calendar.MONTH, 1);
		return new java.sql.Date(scalendar.getTime().getTime());
	}

	static public String format(Date date, String formatText) throws Exception {
		SimpleDateFormat format = new SimpleDateFormat(formatText);
		return format.format(date);
	}

	static public int getDaysOfMonth(Date startdate, Date enddate, String month)
			throws Exception {
		int startmonth = startdate.getMonth() + 1;
		int endmonth = enddate.getMonth() + 1;
		int m = Integer.parseInt(month);
		int day = getLastDay(String.valueOf(startdate.getYear()), month)
				.getDate();
		if ((startmonth < m) && (m < endmonth)) {
			return day;
		} else if (m == startmonth) {
			return day - startdate.getDate() + 1;
		} else if (m == endmonth) {
			return enddate.getDate();
		}
		return 0;
	}

	public static void main(String[] args) {
		try {
			// getDaysOfMonth(new Date(),new Date(),"02");
			// Double s=Double.valueOf("123.6");
			// System.out.print(s.doubleValue()/2);
			SimpleDateFormat format = new SimpleDateFormat("yyyy-MM-dd");
			int days = getDaysOfMonth(format.parse("2007-6-6"), format
					.parse("2007-7-7"), "07");
			System.out.print("days-->" + days);
			// System.out.print(getDistinceDay(new
			// Date(),format.parse("2007-7-7")));
			// java.text.SimpleDateFormat format = new
			// java.text.SimpleDateFormat(
			// "yyyy-MM-dd");
			// System.out.println("date->" +
			// format.format(new Date(getLastDay("2004", "10").
			// getTime())));

			// java.sql.Date date = new
			// java.sql.Date(System.currentTimeMillis());
			// System.out.println(getFrontDateByDayCount(date, 80));
			// Date date = getLastDay("2004","12");
			// System.out.println(getThisYearMonth());
			// System.out.println(getTodayAndTime());

			// String s = getDateTimeStr(new
			// java.sql.Date(System.currentTimeMillis()), 12.0d);
			// System.out.println(s);
			// System.out.println(getDistinceMinute(s, "2005-7-20 12:45:58"));

			// System.out.println(isOvertime("2005-3-15 2:55:00", "26"));

			// String s = "2005-3-23 14:35:58.177";
			// Timestamp t = Timestamp.valueOf(s);
			// System.out.println(t.toString());
			// String s = new Timestamp(System.currentTimeMillis()).toString();
			// System.out.println(s);
			// System.out.println(getToday());
			// Timestamp t = Timestamp.valueOf(s);
			// System.out.println(t.toString());
			// System.out.println(getDistinceTime(s));
			// System.out.println(new Timestamp(0));

			// String s = getDateTimeStr(new
			// java.sql.Date(System.currentTimeMillis()), 12.0d);
			// System.out.println(s);
			// System.out.println(getDistinceMonth(s, "2006-11-20 12:45:58"));
			// String s1 = "2006-2-1";
			// String s2 = "2006-2-28";

			// float f1 = 5;
			// float f2 = 3;
			// System.out.println(f1/f2);

			// NumberFormat format = new DecimalFormat("0.00");
			// String result = format.format(-1234561111111.1);
			// System.out.println("number->"+result);
		} catch (Exception ex) {

		}
	}
}