| | |
| | | public static final String DATE_FORMATE_STRING_K = "yyyyMMddHHmmssSSS"; |
| | | public static final String DATE_FORMATE_STRING_L = "MMdd"; |
| | | public static final String DATE_FORMATE_STRING_M = "yyyyMM"; |
| | | public static final String DATE_FORMATE_STRING_N = "HHmmss"; |
| | | |
| | | static { |
| | | formats.put("yyyyMMddHHmmss", new SimpleDateFormat("yyyyMMddHHmmss")); |
| | |
| | | formats.put("yyyyMMddHHmmssSSS", new SimpleDateFormat("yyyyMMddHHmmssSSS")); |
| | | formats.put("MMdd", new SimpleDateFormat("MMdd")); |
| | | formats.put("yyyyMM", new SimpleDateFormat("yyyyMM")); |
| | | formats.put("HHmmss", new SimpleDateFormat("HHmmss")); |
| | | } |
| | | |
| | | |
| | |
| | | } |
| | | } |
| | | |
| | | public static Date getDateFromStringB(String date) { |
| | | SimpleDateFormat sDateFormat = getDateFormat(DateUtil.DATE_FORMATE_STRING_B); |
| | | try { |
| | | synchronized (sDateFormat) { |
| | | return sDateFormat.parse(date); |
| | | } |
| | | } catch (Exception e) { |
| | | throw new IllegalArgumentException(e); |
| | | } |
| | | } |
| | | |
| | | public static Date getDateFromStringA(String date) { |
| | | SimpleDateFormat sDateFormat = getDateFormat(DateUtil.DATE_FORMATE_STRING_A); |
| | | try { |
| | | synchronized (sDateFormat) { |
| | | return sDateFormat.parse(date); |
| | | } |
| | | } catch (Exception e) { |
| | | throw new IllegalArgumentException(e); |
| | | } |
| | | } |
| | | |
| | | public static Date getDefaultDateFromString(String date) |
| | | throws ParseException { |
| | | return getDateFromString(date, "yyyyMMddHHmmss"); |
| | |
| | | public static String getNow(String pattern) { |
| | | return getFormatTimeString(new Date(), pattern); |
| | | } |
| | | |
| | | |
| | | public static String getLastTime() { |
| | | return LAST_TIME; |
| | |
| | | return curDate; |
| | | } |
| | | |
| | | |
| | | public static String getNextMonthFirstDay(String fmt) { |
| | | String returndate = ""; |
| | | Date date = getNextMonthFirstDate(); |
| | |
| | | return maxDate; |
| | | } |
| | | |
| | | public static void main(String[] args) throws ParseException { |
| | | |
| | | // SimpleDateFormat sf = new SimpleDateFormat(DateUtil.DATE_FORMATE_STRING_A); |
| | | // Calendar c = Calendar.getInstance(); |
| | | // c.setTime(DateUtil.getDateFromString("2021-12-03",DateUtil.DATE_FORMATE_STRING_A)); |
| | | // c.add(Calendar.DAY_OF_MONTH, 125); |
| | | // System.out.println("增加一天后日期:"+sf.format(c.getTime())); |
| | | System.out.println("2021-12-07".compareTo(DateUtil.getNow(DateUtil.DATE_FORMATE_STRING_B))); |
| | | } |
| | | |
| | | public static String getAddDayString(Date date, String pattern, int days) { |
| | | SimpleDateFormat sf = new SimpleDateFormat(pattern); |
| | | Calendar c = Calendar.getInstance(); |
| | | c.setTime(date); |
| | | c.add(Calendar.DAY_OF_MONTH, days); |
| | | return sf.format(c.getTime()); |
| | | } |
| | | |
| | | public static String getAddDayStringB(Date date, int days) { |
| | | SimpleDateFormat sf = new SimpleDateFormat(DATE_FORMATE_STRING_B); |
| | | Calendar c = Calendar.getInstance(); |
| | | c.setTime(date); |
| | | c.add(Calendar.DAY_OF_MONTH, days); |
| | | return sf.format(c.getTime()); |
| | | } |
| | | |
| | | public static String getAddDayStringA(Date date, int days) { |
| | | SimpleDateFormat sf = new SimpleDateFormat(DATE_FORMATE_STRING_A); |
| | | Calendar c = Calendar.getInstance(); |
| | | c.setTime(date); |
| | | c.add(Calendar.DAY_OF_MONTH, days); |
| | | return sf.format(c.getTime()); |
| | | } |
| | | |
| | | |
| | | public static String getAddMonthStringA(Date date, int month) { |
| | | SimpleDateFormat sf = new SimpleDateFormat(DATE_FORMATE_STRING_A); |
| | | Calendar c = Calendar.getInstance(); |
| | | c.setTime(date); |
| | | c.add(Calendar.MONTH, month); |
| | | return sf.format(c.getTime()); |
| | | } |
| | | |
| | | /** |
| | | * 在给定的日期加上或减去指定月份后的日期 |
| | |
| | | private static int millisecondsToDays(long intervalMs) { |
| | | return (int) (intervalMs / (1000 * 86400)); |
| | | } |
| | | |
| | | /** |
| | | * *字符串的日期格式的计算 |
| | | * |
| | | */ |
| | | public static int daysBetween(String smdate, String bdate) { |
| | | long between_days = 0; |
| | | try { |
| | | SimpleDateFormat sdf = new SimpleDateFormat("yyyy-MM-dd"); |
| | | Calendar cal = Calendar.getInstance(); |
| | | cal.setTime(sdf.parse(smdate)); |
| | | long time1 = cal.getTimeInMillis(); |
| | | cal.setTime(sdf.parse(bdate)); |
| | | long time2 = cal.getTimeInMillis(); |
| | | between_days = (time2 - time1) / (1000 * 3600 * 24); |
| | | } catch (Exception e) { |
| | | e.printStackTrace(); |
| | | } |
| | | |
| | | return Integer.parseInt(String.valueOf(between_days)); |
| | | } |
| | | } |