package com.epicsaas.app.attendance.util; import com.epicsaas.framework.util.DateTimeUtils; import org.nutz.json.Json; import java.text.DateFormat; import java.text.ParseException; import java.text.SimpleDateFormat; import java.util.ArrayList; import java.util.Calendar; import java.util.Date; import java.util.List; import java.util.regex.Matcher; import java.util.regex.Pattern; /** * 日期公用类 */ public class DateTimeUtil { public static final long MILI_SENCOND_IN_AN_DAY = 24 * 60 * 60 * 1000; public static final String DEFAULT_DATE_FORMAT = "yyyy-MM-dd"; public static final String DEFAULT_CN_DATE_FORMAT = "yyyy年MM月dd日"; public static final String DEFAULT_DATETIME_FORMAT = "yyyy-MM-dd HH:mm:ss"; public static final String DEFAULT_POIT_DATE_FORMAT = "yyyy.MM.dd"; public static final String DATETIME_HM_PATTERN = "yyyy-MM-dd HH:mm"; public static final String DAY_PATTERN = "MM-dd"; public static final String TIME_PATTERN = "HH:mm:ss"; private static final SimpleDateFormat DATE_FORMAT = new SimpleDateFormat(DEFAULT_DATE_FORMAT); private static final SimpleDateFormat DATETIME_FORMAT = new SimpleDateFormat(DEFAULT_DATETIME_FORMAT); private static String defaultPattern = DEFAULT_DATE_FORMAT; public static Date parseDatetime2Date(Date date, String formatStr) { return DateTimeUtils.parseStrToDate(DateTimeUtils.formateDateToStr(date, formatStr), formatStr); } /** * 获取指定月第一天零点 * @return 本月第一天零点 */ public static Date getFirstDateOfCurrMonth(Date date) { Date firstDateOfCurrMonth; // 本月第一天 Calendar calendar = Calendar.getInstance(); calendar.setTime(date); calendar.set(calendar.get(Calendar.YEAR), calendar.get(Calendar.MONTH), 1, 0, 0, 0); firstDateOfCurrMonth = calendar.getTime(); return firstDateOfCurrMonth; } /** * 获取本月最后一天零点 * @return 本月最后一天零点 */ public static Date getLastDateOfCurrMonth(Date date) { Date lastDateOfCurrMonth; // 下个月第一天零点 Calendar calendar = Calendar.getInstance(); calendar.setTime(date); calendar.set(calendar.get(Calendar.YEAR), calendar.get(Calendar.MONTH) + 1, 1, 0, 0, 0); lastDateOfCurrMonth = new Date(calendar.getTimeInMillis() - DateTimeUtil.MILI_SENCOND_IN_AN_DAY); return lastDateOfCurrMonth; } /** * 获取本月第一天零点 * @return 本月第一天零点 */ public static Date getFirstDateOfCurrMonth() { Date firstDateOfCurrMonth; // 本月第一天 Calendar calendar = Calendar.getInstance(); calendar.set(calendar.get(Calendar.YEAR), calendar.get(Calendar.MONTH), 1, 0, 0, 0); firstDateOfCurrMonth = calendar.getTime(); return firstDateOfCurrMonth; } /** * 获取本月最后一天零点 * @return 本月最后一天零点 */ public static Date getLastDateOfCurrMonth() { Date lastDateOfCurrMonth; // 下个月第一天零点 Calendar calendar = Calendar.getInstance(); calendar.set(calendar.get(Calendar.YEAR), calendar.get(Calendar.MONTH) + 1, 1, 0, 0, 0); lastDateOfCurrMonth = new Date(calendar.getTimeInMillis() - DateTimeUtil.MILI_SENCOND_IN_AN_DAY); return lastDateOfCurrMonth; } /** * @Title: parseStrToDate * @Description: TODO(根据格式将字符串转换为日期) * @param @param dateStr * @param @param formatStr * @param @return 设定文件 * @return Date 返回类型 * @throws */ public static Date parseStrToDate(String dateStr, String formatStr) { if (StringsUtil.isNullOrEmpty(dateStr) || StringsUtil.isNullOrEmpty(formatStr)) { return null; } SimpleDateFormat dateFormat = new SimpleDateFormat(formatStr); Date date = null; try { date = dateFormat.parse(dateStr); } catch (ParseException ex) { date = null; } dateFormat = null; return date; } /** * @Title: formatDateToStr * @Description: TODO(日期转换为字符串) * @param @param date * @param @param formatStr * @param @return 设定文件 * @return String 返回类型 * @throws */ public static String formatDateToStr(Date date, String formatStr) { if (date == null || StringsUtil.isNullOrEmpty(formatStr)) { return null; } SimpleDateFormat format = new SimpleDateFormat(formatStr); String dateStr = format.format(date); format = null; return dateStr; } /** * @Title: getNow * @Description: TODO(获取系统当前时间) * @param @return 设定文件 * @return Date 返回类型 * @throws */ public static Date getNow() { Calendar now = Calendar.getInstance(); return now.getTime(); } /** * * 描述：把字符串的时间转换为Date对象 * @param strDate * @return * @throws Exception * 最后修改时间：2015年4月14日 * 作者：chenjie */ public static Date parseDateFromString(String strDate) throws Exception { try { if (strDate == null || strDate.isEmpty()) { throw new RuntimeException("时间值字符串为空！"); } strDate = strDate.trim(); if (strDate.contains("/")) strDate = strDate.replaceAll("/", "-"); String formatStr = ""; //如果format为空，根据strDate来判断format格式 //yyyy-MM-dd HH:mm:ss switch (strDate.length()) { case 5: { if (strDate.substring(2, 3).equals("-")) { formatStr = "MM-dd"; } else if (strDate.substring(2, 3).equals(":")) { formatStr = "HH:mm"; } else { throw new RuntimeException("时间格式不正确！值：" + strDate); } } break; case 7: { formatStr = "yyyy-MM"; } break; case 10: { formatStr = "yyyy-MM-dd"; } break; case 13: { formatStr = "yyyy-MM-dd HH"; } break; case 16: { formatStr = "yyyy-MM-dd HH:mm"; } break; case 19: { formatStr = "yyyy-MM-dd HH:mm:ss"; } break; default: throw new RuntimeException("时间格式不正确！值：" + strDate); } //如果format不为空，直接使用 SimpleDateFormat format = new SimpleDateFormat(formatStr); return format.parse(strDate); } catch (Exception e) { RuntimeException ex = new RuntimeException(e.getMessage() + "-->" + "根据字符串解析时间异常！参数值：" + Json.toJson(strDate)); ex.setStackTrace(e.getStackTrace()); throw ex; } } /** * * 描述：获取若干天之前或之后的时间 * @param date * @param days * @return * @throws Exception * 最后修改时间：2015年5月7日 * 作者：chenjie */ public static Date fetchTheDateAfter(Date date, int days) throws Exception { try { Calendar cld = Calendar.getInstance(); cld.setTime(date); cld.add(Calendar.DATE, days); return cld.getTime(); } catch (Exception e) { throw new RuntimeException("获取日期的前一天失败！"); } } /** * 取得当前日期 年-月-日 * * @return */ public static String currentDate() { DateFormat f = new SimpleDateFormat(defaultPattern); return f.format(Calendar.getInstance().getTime()); } /** * 获取指定年月指定周的日期 * @param year 自然年 * @param month 自然月 * @param weekOfMonth 每月的第几周 * @param dayOfWeek 每周的第几天 * @return */ public static Date getAppointWeekDate(int year, int month, int weekOfMonth, int dayOfWeek) { Calendar calendar = Calendar.getInstance(); calendar.set(Calendar.YEAR, year); calendar.set(Calendar.MONTH, month - 1); calendar.set(Calendar.WEEK_OF_MONTH, weekOfMonth); calendar.set(Calendar.DAY_OF_WEEK, dayOfWeek); return calendar.getTime(); } /** * 获取指定日期所在周是本月第几周 * @param date 查询日期 * @return */ public static int getWeekOfMonth(Date date) { Calendar calendar = Calendar.getInstance(); calendar.setTime(date); return calendar.get(Calendar.WEEK_OF_MONTH); } /** * 获取今天是本周的第几天 * @param date * @return */ public static int getDayOfWeek(Date date) { Calendar calendar = Calendar.getInstance(); calendar.setTime(date); return calendar.get(Calendar.DAY_OF_WEEK); } /** * 返回指定年月周的所有日期 * @param year * @param month * @param weekOfMonth * @return */ public static List<Date> getAppointWeekDates(int year, int month, int weekOfMonth){ List<Date> list = new ArrayList<>(); list.add(getAppointWeekDate(year,month,weekOfMonth, Calendar.MONDAY)); list.add(getAppointWeekDate(year,month,weekOfMonth, Calendar.TUESDAY)); list.add(getAppointWeekDate(year,month,weekOfMonth, Calendar.WEDNESDAY)); list.add(getAppointWeekDate(year,month,weekOfMonth, Calendar.THURSDAY)); list.add(getAppointWeekDate(year,month,weekOfMonth, Calendar.FRIDAY)); list.add(getAppointWeekDate(year,month,weekOfMonth, Calendar.SATURDAY)); list.add(DateTimeUtils.getAdjustTime(getAppointWeekDate(year,month,weekOfMonth, Calendar.SUNDAY),7,0,0,0,0)); return list; } public static List<String> getAppointWeekDatesFormat(int year,int month,int weekOfMonth,String formatStr){ List<Date> dateList = getAppointWeekDates(year,month,weekOfMonth); List<String> list = new ArrayList<>(); int i = 0; for(Date date : dateList){ String dateStr = formatDateToStr(date,formatStr); switch (i) { case 0: dateStr += "(一)"; break; case 1: dateStr += "(二)"; break; case 2: dateStr += "(三)"; break; case 3: dateStr += "(四)"; break; case 4: dateStr += "(五)"; break; case 5: dateStr += "(六)"; break; case 6: dateStr += "(日)"; break; } list.add(dateStr); i++; } return list; } /** * dateTime 转化为 date * @param date * @return */ public static Date parseDatetime2Date(Date date) { return DateTimeUtils.parseStrToDate(DateTimeUtils.formateDateToStr(date, DateTimeUtils.FORMAT_YMD), DateTimeUtils.FORMAT_YMD); } public static String getMonthZH(int month) { String monthStr = ""; switch (month) { case 1: monthStr = "一月"; break; case 2: monthStr = "二月"; break; case 3: monthStr = "三月"; break; case 4: monthStr = "四月"; break; case 5: monthStr = "五月"; break; case 6: monthStr = "六月"; break; case 7: monthStr = "七月"; break; case 8: monthStr = "八月"; break; case 9: monthStr = "九月"; break; case 10: monthStr = "十月"; break; case 11: monthStr = "十一月"; break; case 12: monthStr = "十二月"; break; } return monthStr; } public static String getWeekZH(int week) { String weekStr = ""; switch (week) { case 1: weekStr = "第一周"; break; case 2: weekStr = "第二周"; break; case 3: weekStr = "第三周"; break; case 4: weekStr = "第四周"; break; case 5: weekStr = "第五周"; break; } return weekStr; } public static Date getDateFromString(String dateString, String timeString) { String date = dateString + " " + timeString; return parseStrToDate(date, DATETIME_HM_PATTERN); } public static Date getStartOfYear(Date date) { Calendar cal = Calendar.getInstance(); cal.setTime(date); cal.set(Calendar.MONTH, Calendar.JANUARY); cal.set(Calendar.DAY_OF_MONTH, 1); return DateTimeUtils.setDayFirstTime(cal.getTime()); } public static Date getEndOfYear(Date date) { Calendar cal = Calendar.getInstance(); cal.setTime(date); cal.set(Calendar.MONTH, Calendar.DECEMBER); cal.set(Calendar.DAY_OF_MONTH, 31); return DateTimeUtils.setDayLastTime(cal.getTime()); } /** * 获取2个日期之间的月份 * @param beginDate * @param endDate * @param dateList * @return */ public static List<Date> getDifferentMonthBetweenDate(Date beginDate, Date endDate, List<Date> dateList) { beginDate = DateTimeUtil.parseDatetime2Date(beginDate); endDate = DateTimeUtil.parseDatetime2Date(endDate); if (DateTimeUtils.compareDate(beginDate, endDate) == 1) { return null; } Calendar beginCal = Calendar.getInstance(); beginCal.setTime(beginDate); Calendar endCal = Calendar.getInstance(); endCal.setTime(endDate); while (DateTimeUtils.compareDate(beginCal.getTime(), endCal.getTime()) < 1) { dateList.add(beginCal.getTime()); beginCal.add(Calendar.MONTH, 1); } return dateList; } /** * 获取2个日期之间的所有天 * @param beginDate * @param endDate * @return */ public static List<Date> getDifferentDayBetweenDate(Date beginDate, Date endDate){ List<Date> dateList = new ArrayList<>(); //如果请假是当天 if (compareYearAndMonthAndDay(beginDate, endDate)){ dateList.add(beginDate); return dateList; } Calendar beginCal = Calendar.getInstance(); beginCal.setTime(beginDate); Calendar endCal = Calendar.getInstance(); endCal.setTime(endDate); //加入开始时间 dateList.add(beginCal.getTime()); while (!compareYearAndMonthAndDay(beginCal.getTime(), endCal.getTime())){ beginCal.add(Calendar.DAY_OF_MONTH, 1); dateList.add(beginCal.getTime()); } return dateList; } public static Date getTheDateBegin(Date date) { Calendar calendar = Calendar.getInstance(); calendar.setTime(date); calendar.set(Calendar.HOUR_OF_DAY, 0); calendar.set(Calendar.MINUTE, 0); calendar.set(Calendar.SECOND, 0); return calendar.getTime(); } public static Date getTheDateEnd(Date date) { Calendar calendar = Calendar.getInstance(); calendar.setTime(date); calendar.set(Calendar.HOUR_OF_DAY, 23); calendar.set(Calendar.MINUTE, 59); calendar.set(Calendar.SECOND, 59); return calendar.getTime(); } /** * 把日期增加几个月 * @param date * @param num * @return */ public static Date getAddMonth(Date date, int num) { Calendar calendar = Calendar.getInstance(); calendar.setTime(date); calendar.add(Calendar.MONTH, num); calendar.set(Calendar.HOUR_OF_DAY, 23); calendar.set(Calendar.MINUTE, 59); calendar.set(Calendar.SECOND, 59); return calendar.getTime(); } /** * 把日期减少几个月 * @param date * @param num * @return */ public static Date getSubMonth(Date date, int num) { Calendar calendar = Calendar.getInstance(); calendar.setTime(date); calendar.add(Calendar.MONTH, -num); return calendar.getTime(); } public static Date getYear(Date date, int length) { Calendar calendar = Calendar.getInstance(); calendar.setTime(date); calendar.add(Calendar.YEAR, -length); return calendar.getTime(); } /** * 两个时间对比月和日是否相同 * @param date * @param newDate * @return true相同 */ public static boolean compareMonthAndDay(Date date, Date newDate) { if (date == null || newDate == null) { return false; } Calendar calendar1 = Calendar.getInstance(); calendar1.setTime(date); Calendar calendar2 = Calendar.getInstance(); calendar2.setTime(newDate); boolean monthEqual = calendar1.get(Calendar.MONTH) == calendar2.get(Calendar.MONTH); boolean dayEqual = calendar1.get(Calendar.DAY_OF_MONTH) == calendar2.get(Calendar.DAY_OF_MONTH); if (monthEqual && dayEqual) { return true; } return false; } /** * 两个时间对比年、月、日是否相同 * @param date * @param newDate * @return true相同 */ public static boolean compareYearAndMonthAndDay(Date date, Date newDate) { if (date == null || newDate == null) { return false; } Calendar calendar1 = Calendar.getInstance(); calendar1.setTime(date); Calendar calendar2 = Calendar.getInstance(); calendar2.setTime(newDate); boolean yearEqual = calendar1.get(Calendar.YEAR) == calendar2.get(Calendar.YEAR); boolean monthEqual = calendar1.get(Calendar.MONTH) == calendar2.get(Calendar.MONTH); boolean dayEqual = calendar1.get(Calendar.DAY_OF_MONTH) == calendar2.get(Calendar.DAY_OF_MONTH); if (monthEqual && dayEqual && yearEqual) { return true; } return false; } /** * 判断时间格式 格式必须为“YYYY-MM-dd” * @param sDate * @return */ public static boolean isLegalDate(String sDate) { int legalLen = 10; if ((sDate == null) || (sDate.length() != legalLen)) { return false; } DateFormat formatter = new SimpleDateFormat("yyyy-MM-dd"); try { Date date = formatter.parse(sDate); return sDate.equals(formatter.format(date)); } catch (Exception e) { return false; } } /** * 利用正则表达式判断字符串是否是数字，两位小数 * @param str * @return */ public static boolean isNumber(String str) { Pattern pattern = Pattern.compile("^(([1-9]{1}\d*)|([0]{1}))(\.(\d){2})?$"); Matcher isNum = pattern.matcher(str); return isNum.matches(); } /** * 计算时间差，结果精确到分钟 * @param beginDate * @param endDate * @return */ public static long getDifferenceOfDate(Date beginDate, Date endDate) { return Math.abs((endDate.getTime() - beginDate.getTime()) / DateTimeUtils.MILLIONSECOND_OF_MINUTE); } /** * 计算时间差，结果精确到天 * @param beginDate * @param endDate * @return */ public static long getDifferenceDate(Date beginDate, Date endDate) { return Math.abs((endDate.getTime() - beginDate.getTime()) / DateTimeUtils.MILLIONSECOND_OF_DAY); } /** * 获取是周几 * @param date * @return */ public static String getWeek(Date date) { String week = ""; Calendar c = Calendar.getInstance(); c.setTime(date); int weekday = c.get(Calendar.DAY_OF_WEEK); if (weekday == 1) { week = "周日"; } else if (weekday == 2) { week = "周一"; } else if (weekday == 3) { week = "周二"; } else if (weekday == 4) { week = "周三"; } else if (weekday == 5) { week = "周四"; } else if (weekday == 6) { week = "周五"; } else if (weekday == 7) { week = "周六"; } return week; } }