日期工具类

    xiaoxiao2023-10-14  145

    package com.yss.sofa.framework.util; import java.sql.Timestamp; import java.text.ParsePosition; import java.text.SimpleDateFormat; import java.util.Calendar; import java.util.Date; import java.util.GregorianCalendar; import java.util.regex.Pattern; import com.yss.sofa.container.util.osgi.OsgiServiceUtil; import com.yss.sofa.framework.exception.SOFAException; /** * 日期工具类. * */ public final class DateUtil { // 格式:年-月-日 小时:分钟:秒 public static final String FORMAT_ONE = "yyyy-MM-dd HH:mm:ss"; // 格式:年-月-日 小时:分钟 public static final String FORMAT_TWO = "yyyy-MM-dd HH:mm"; // 格式:年月日 小时分钟秒 public static final String FORMAT_THREE = "yyyyMMdd-HHmmss"; // 格式:年-月-日 public static final String LONG_DATE_FORMAT = "yyyy-MM-dd"; // 格式:月-日 public static final String SHORT_DATE_FORMAT = "MM-dd"; // 格式:小时:分钟:秒 public static final String LONG_TIME_FORMAT = "HH:mm:ss"; // 格式:年-月 public static final String MONTG_DATE_FORMAT = "yyyy-MM"; // 年的加减 public static final int SUB_YEAR = Calendar.YEAR; // 月加减 public static final int SUB_MONTH = Calendar.MONTH; // 天的加减 public static final int SUB_DAY = Calendar.DATE; // 小时的加减 public static final int SUB_HOUR = Calendar.HOUR; // 分钟的加减 public static final int SUB_MINUTE = Calendar.MINUTE; // 秒的加减 public static final int SUB_SECOND = Calendar.SECOND; static final String dayNames[] = { "星期日", "星期一", "星期二", "星期三", "星期四", "星期五", "星期六" }; @SuppressWarnings("unused") private static final SimpleDateFormat timeFormat = new SimpleDateFormat( "yyyy-MM-dd HH:mm:ss"); public DateUtil() { } /** * 把符合日期格式的字符串转换为日期类型 * * @param dateStr * @return */ public static java.util.Date stringtoDate(String dateStr, String format) { Date d = null; SimpleDateFormat formater = new SimpleDateFormat(format); try { formater.setLenient(false); d = formater.parse(dateStr); } catch (Exception e) { // log.error(e); d = null; } return d; } /** * 把符合日期格式的字符串转换为日期类型 */ public static java.util.Date stringtoDate(String dateStr, String format, ParsePosition pos) { Date d = null; SimpleDateFormat formater = new SimpleDateFormat(format); try { formater.setLenient(false); d = formater.parse(dateStr, pos); } catch (Exception e) { d = null; } return d; } /** * 把日期转换为字符串 * * @param date * @return */ public static String dateToString(java.util.Date date, String format) { String result = ""; SimpleDateFormat formater = new SimpleDateFormat(format); try { result = formater.format(date); } catch (Exception e) { // log.error(e); } return result; } /** * 获取当前时间的指定格式 * * @param format * @return */ public static String getCurrDate(String format) { return dateToString(new Date(), format); } /** * * @param dateStr * @param amount * @return */ public static String dateSub(int dateKind, String dateStr, int amount) { Date date = stringtoDate(dateStr, FORMAT_ONE); Calendar calendar = Calendar.getInstance(); calendar.setTime(date); calendar.add(dateKind, amount); return dateToString(calendar.getTime(), FORMAT_ONE); } /** * 两个日期相减 * * @param firstTime * @param secTime * @return 相减得到的秒数 */ public static long timeSub(String firstTime, String secTime) { long first = stringtoDate(firstTime, FORMAT_ONE).getTime(); long second = stringtoDate(secTime, FORMAT_ONE).getTime(); return (second - first) / 0; } /** * 获得某月的天数 * * @param year * int * @param month * int * @return int */ public static int getDaysOfMonth(String year, String month) { int days = 0; if (month.equals("1") || month.equals("3") || month.equals("5") || month.equals("7") || month.equals("8") || month.equals("10") || month.equals("12")) { days = 31; } else if (month.equals("4") || month.equals("6") || month.equals("9") || month.equals("11")) { days = 30; } else { if ((Integer.parseInt(year) % 4 == 0 && Integer.parseInt(year) % 100 != 0) || Integer.parseInt(year) % 400 == 0) { days = 29; } else { days = 28; } } return days; } /** * 获取某年某月的天数 * * @param year * int * @param month * int 月份[1-12] * @return int */ public static int getDaysOfMonth(int year, int month) { Calendar calendar = Calendar.getInstance(); calendar.set(year, month - 1, 1); return calendar.getActualMaximum(Calendar.DAY_OF_MONTH); } /** * 获得当前日期 * * @return int */ public static int getToday() { Calendar calendar = Calendar.getInstance(); return calendar.get(Calendar.DATE); } /** * 获得当前月份 * * @return int */ public static int getToMonth() { Calendar calendar = Calendar.getInstance(); return calendar.get(Calendar.MONTH) + 1; } /** * 获得当前年份 * * @return int */ public static int getToYear() { Calendar calendar = Calendar.getInstance(); return calendar.get(Calendar.YEAR); } /** * 返回日期的天 * * @param date * Date * @return int */ public static int getDay(Date date) { Calendar calendar = Calendar.getInstance(); calendar.setTime(date); return calendar.get(Calendar.DATE); } /** * 返回日期的年 * * @param date * Date * @return int */ public static int getYear(Date date) { Calendar calendar = Calendar.getInstance(); calendar.setTime(date); return calendar.get(Calendar.YEAR); } /** * 返回日期的月份,1-12 * * @param date * Date * @return int */ public static int getMonth(Date date) { Calendar calendar = Calendar.getInstance(); calendar.setTime(date); return calendar.get(Calendar.MONTH) + 1; } /** * 计算两个日期相差的天数,如果date2 > date1 返回正数,否则返回负数 * * @param date1 * Date * @param date2 * Date * @return long */ public static long dayDiff(Date date1, Date date2) { return (date2.getTime() - date1.getTime()) / (1000*24*60*60); } /** * 比较两个日期的年差 * * @param befor * @param after * @return */ public static int yearDiff(String before, String after) { Date beforeDay = stringtoDate(before, LONG_DATE_FORMAT); Date afterDay = stringtoDate(after, LONG_DATE_FORMAT); return getYear(afterDay) - getYear(beforeDay); } /** * 比较指定日期与当前日期的差 * * @param befor * @param after * @return */ public static int yearDiffCurr(String after) { Date beforeDay = new Date(); Date afterDay = stringtoDate(after, LONG_DATE_FORMAT); return getYear(beforeDay) - getYear(afterDay); } /** * 比较指定日期与当前日期的差 * * @param before * @return * @author chenyz */ public static long dayDiffCurr(String before) { Date currDate = DateUtil.stringtoDate(currDay(), LONG_DATE_FORMAT); Date beforeDate = stringtoDate(before, LONG_DATE_FORMAT); return (currDate.getTime() - beforeDate.getTime()) / 00; } /** * 获取每月的第一周 * * @param year * @param month * @return * @author chenyz */ public static int getFirstWeekdayOfMonth(int year, int month) { Calendar c = Calendar.getInstance(); c.setFirstDayOfWeek(Calendar.SATURDAY); // 星期天为第一天 c.set(year, month - 1, 1); return c.get(Calendar.DAY_OF_WEEK); } /** * 获取每月的最后一周 * * @param year * @param month * @return * @author chenyz */ public static int getLastWeekdayOfMonth(int year, int month) { Calendar c = Calendar.getInstance(); c.setFirstDayOfWeek(Calendar.SATURDAY); // 星期天为第一天 c.set(year, month - 1, getDaysOfMonth(year, month)); return c.get(Calendar.DAY_OF_WEEK); } /** * 获得当前日期字符串,格式"yyyy-MM-dd HH:mm:ss" * * @return */ public static String getCurrent() { String temp_str=""; Date dt = new Date(); //最后的aa表示“上午”或“下午” HH表示24小时制 如果换成hh表示12小时制 SimpleDateFormat sdf = new SimpleDateFormat("yyyy-MM-dd HH:mm:ss"); temp_str=sdf.format(dt); return temp_str; } /** * 获得当前日期字符串,格式"yyyy-MM-dd HH:mm:ss" * * @return */ public static String getNow() { Calendar today = Calendar.getInstance(); return dateToString(today.getTime(), FORMAT_ONE); } /** * 根据生日获取星座 * * @param birth * YYYY-mm-dd * @return */ public static String getAstro(String birth) { if (!isDate(birth)) { birth = "0" + birth; } if (!isDate(birth)) { return ""; } int month = Integer.parseInt(birth.substring(birth.indexOf("-") + 1, birth.lastIndexOf("-"))); int day = Integer.parseInt(birth.substring(birth.lastIndexOf("-") + 1)); String s = "魔羯水瓶双鱼牡羊金牛双子巨蟹狮子处女天秤天蝎射手魔羯"; int[] arr = { 20, 19, 21, 21, 21, 22, 23, 23, 23, 23, 22, 22 }; int start = month * 2 - (day < arr[month - 1] ? 2 : 0); return s.substring(start, start + 2) + "座"; } /** * 判断日期是否有效,包括闰年的情况 * * @param date * YYYY-mm-dd * @return */ public static boolean isDate(String date) { StringBuffer reg = new StringBuffer( "^((\\d{2}(([68][])|([79][26]))-?((((0?"); reg.append("[78])|(1[02]))-?((0?[1-9])|([1-2][0-9])|(3[01])))"); reg.append("|(((0?[])|(11))-?((0?[1-9])|([1-2][0-9])|(30)))|"); reg.append("(0?2-?((0?[1-9])|([1-2][0-9])))))|(\\d{2}(([68][12"); reg.append("79])|([79][89]))-?((((0?[78])|(1[02]))"); reg.append("-?((0?[1-9])|([1-2][0-9])|(3[01])))|(((0?[])|(11))"); reg.append("-?((0?[1-9])|([1-2][0-9])|(30)))|(0?2-?((0?["); reg.append("1-9])|(1[0-9])|(2[0-8]))))))"); Pattern p = Pattern.compile(reg.toString()); return p.matcher(date).matches(); } /** * 取得指定日期过 months 月后的日期 (当 months 为负数表示指定月之前); * * @param date * 日期 为null时表示当天 * @param month * 相加(相减)的月数 */ public static Date nextMonth(Date date, int months) { Calendar cal = Calendar.getInstance(); if (date != null) { cal.setTime(date); } cal.add(Calendar.MONTH, months); return cal.getTime(); } /** * 取得指定日期过 day 天后的日期 (当 day 为负数表示指日期之前); * * @param date * 日期 为null时表示当天 * @param month * 相加(相减)的月数 */ public static Date nextDay(Date date, int day) { Calendar cal = Calendar.getInstance(); if (date != null) { cal.setTime(date); } cal.add(Calendar.DAY_OF_YEAR, day); return cal.getTime(); } /** * 取得距离今天 day 日的日期 * * @param day * @param format * @return * @author chenyz */ public static String nextDay(int day, String format) { Calendar cal = Calendar.getInstance(); cal.setTime(new Date()); cal.add(Calendar.DAY_OF_YEAR, day); return dateToString(cal.getTime(), format); } /** * 取得指定日期过 day 周后的日期 (当 day 为负数表示指定月之前) * * @param date * 日期 为null时表示当天 */ public static Date nextWeek(Date date, int week) { Calendar cal = Calendar.getInstance(); if (date != null) { cal.setTime(date); } cal.add(Calendar.WEEK_OF_MONTH, week); return cal.getTime(); } /** * 获取当前的日期(yyyy-MM-dd) */ public static String currDay() { return DateUtil.dateToString(new Date(), DateUtil.LONG_DATE_FORMAT); } /** * 获取昨天的日期 * * @return */ public static String befoDay() { return befoDay(DateUtil.LONG_DATE_FORMAT); } /** * 根据时间类型获取昨天的日期 * * @param format * @return * @author chenyz */ public static String befoDay(String format) { return DateUtil.dateToString(DateUtil.nextDay(new Date(), -1), format); } /** * 获取明天的日期 */ public static String afterDay() { return DateUtil.dateToString(DateUtil.nextDay(new Date(), 1), DateUtil.LONG_DATE_FORMAT); } /** * 取得当前时间距离0/1/1的天数 * * @return */ public static int getDayNum() { int daynum = 0; GregorianCalendar gd = new GregorianCalendar(); Date dt = gd.getTime(); GregorianCalendar gd1 = new GregorianCalendar(0, 1, 1); Date dt1 = gd1.getTime(); daynum = (int) ((dt.getTime() - dt1.getTime()) / (24 * 60 * 60 * 0)); return daynum; } /** * getDayNum的逆方法(用于处理Excel取出的日期格式数据等) * * @param day * @return */ public static Date getDateByNum(int day) { GregorianCalendar gd = new GregorianCalendar(0, 1, 1); Date date = gd.getTime(); date = nextDay(date, day); return date; } /** 针对yyyy-MM-dd HH:mm:ss格式,显示yyyymmdd */ public static String getYmdDateCN(String datestr) { if (datestr == null) return ""; if (datestr.length() < 10) return ""; StringBuffer buf = new StringBuffer(); buf.append(datestr.substring(0, 4)).append(datestr.substring(5, 7)) .append(datestr.substring(8, 10)); return buf.toString(); } /** * 获取本月第一天 * * @param format * @return */ public static String getFirstDayOfMonth(String format) { Calendar cal = Calendar.getInstance(); cal.set(Calendar.DATE, 1); return dateToString(cal.getTime(), format); } /** * 获取本月最后一天 * * @param format * @return */ public static String getLastDayOfMonth(String format) { Calendar cal = Calendar.getInstance(); cal.set(Calendar.DATE, 1); cal.add(Calendar.MONTH, 1); cal.add(Calendar.DATE, -1); return dateToString(cal.getTime(), format); } /** * 类似vb的CDate函数,自动分析sDate,如格式正常,返回日期,否则报错。 * 注意这里只能处理单纯日期,不处理时间,年份正常范围在0-99和1000-9999 仅解析用/-.间隔的日期 */ public static Date toDate(String sDate) throws SOFAException { int jj; char ss = 0, cc; String[] sss = { "-", "/", "." }; String[] result; int kk, mm; final String emsg = "非法日期格式!"; GregorianCalendar cl = null; // 检查分隔符 for (jj = 0; jj < sss.length; jj++) { if (sDate.indexOf(sss[jj]) >= 0) break; } int len = sDate.length(); if(jj < sss.length){ ss = sss[jj].charAt(0); }else if(len!=8 && len!=6){ throw new SOFAException(emsg); } // 检查数字有效性即除了数字和分隔符,不应该再包括其它字符 for (int i = 0; i < len ; i++) { cc = sDate.charAt(i); if (cc != ss && (cc < '0' || cc > '9')) throw new SOFAException(emsg); } if((len==8||len==6) && ss == 0){ if(len==8){ jj = Integer.parseInt(sDate.substring(0,4)); kk = Integer.parseInt(sDate.substring(4,6)); mm = Integer.parseInt(sDate.substring(6,8)); }else{ jj = Integer.parseInt(sDate.substring(0,2)); kk = Integer.parseInt(sDate.substring(2,4)); mm = Integer.parseInt(sDate.substring(4,6)); } }else{ ss = sss[jj].charAt(0); // 劈开,获取3个数字 result = sDate.split("\\"+sss[jj], -1); // 检查全部,包括空的元素,用0会忽略空 if (result.length != 3){ throw new SOFAException(emsg); } jj = Integer.parseInt(result[0]); kk = Integer.parseInt(result[1]); mm = Integer.parseInt(result[2]); } // 判断是否符合一种日期格式 // 1、y/M/d格式 if (isValidDate(jj, kk, mm)) cl = new GregorianCalendar(jj < 30 ? jj + 2000 : (jj <= 99 ? jj + 1900 : jj), kk - 1, mm); else { if (mm < 30) mm += 2000; else if (mm <= 99) mm += 1900; // 2、M/d/y格式 if (isValidDate(mm, jj, kk)) cl = new GregorianCalendar(mm, jj - 1, kk); // 3、d/M/y格式 else if (isValidDate(mm, kk, jj)) cl = new GregorianCalendar(mm, kk - 1, jj); else throw new com.yss.sofa.framework.exception.SOFAException(emsg); } return cl.getTime(); } /** * 判断年月日是否在正常范围 年份正常范围在0-99和1000-9999 */ public static boolean isValidDate(int year, int month, int day) { GregorianCalendar cl; if (year < 0 || (year > 99 && (year < 1000 || year > 9999))) return false; if (year < 30) year += 2000; else if (year <= 99) year += 1900; if (month < 1 || month > 12) return false; cl = new GregorianCalendar(year, month - 1, 1); // 参数月份从0开始所以减一 if (day < cl.getActualMinimum(Calendar.DAY_OF_MONTH) || day > cl.getActualMaximum(Calendar.DAY_OF_MONTH)) return false; return true; } public static String formatDate(Date date,String format) { return new SimpleDateFormat(format).format(date); } /** * 获取数据库系统的当前时间,支持(oracle、db2、mssql) * @return java.sql.Timestamp */ public static Timestamp getSystemTimestamp(){ SystemDateUtil sdu = OsgiServiceUtil.getOsgiService(SystemDateUtil.class); return sdu.getSystemTimestamp(); } public static void main( String[] args ) throws Exception { System.out.println("---"+DateUtil.toDate("2000-10-11")); System.out.println("---"+DateUtil.toDate("20001011")); System.out.println("---"+DateUtil.toDate("001011")); System.out.println("---"+DateUtil.toDate("2000.10.11")); System.out.println("---"+DateUtil.toDate("2000/10/11")); System.out.println("---"+DateUtil.toDate("2000/1/1")); System.out.println("---"+DateUtil.toDate("2000-1-1")); System.out.println("---"+DateUtil.toDate("00-10-11")); } /** * 获取今日0点时间 * * * @return */ public static Date getZeroTime() { long current = System.currentTimeMillis(); long zero = current - (current + TimeZone.getDefault().getRawOffset()) % (1000 * 3600 * 24); Date date = new Date(); date.setTime(zero); System.out.println(date); return date; } /** * 获取某个时间毫秒值当天的00:00:00点时间 * * @author panchunhui * @param dateTime * @return Date */ public static Date getZeroTime(long dateTime) { long zeroMs = dateTime - (dateTime + TimeZone.getDefault().getRawOffset()) % (1000 * 3600 * 24); Date zero = new Date(); zero.setTime(zeroMs); return zero; } /** * 获取某个时间毫秒值当天的23:59:59点时间 * * * @param dateTime * @return Date */ public static Date getEndTime(long dateTime) { long endMs = dateTime - (dateTime + TimeZone.getDefault().getRawOffset()) % (1000 * 3600 * 24) + (1000 * 3600 * 24 - 1); Date end = new Date(); end.setTime(endMs); return end; } }
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