部分代码可以抽取合并。

import java.sql.Timestamp; import java.text.ParseException; import java.text.ParsePosition; import java.text.SimpleDateFormat; import java.util.ArrayList; import java.util.Calendar; import java.util.Date; import java.util.GregorianCalendar; import java.util.List; import java.util.Locale; import java.util.Random; public class DateUtils { /*时间戳转换成字符窜*/ public static String getDateToString(long time) { SimpleDateFormat sf = null; Date d = new Date(time*1000); sf = new SimpleDateFormat("yyyy-MM-dd HH:mm:ss"); return sf.format(d); } /*时间戳转换成字符窜*/ public static String getDateToString1(long time) { SimpleDateFormat sf = null; Date d = new Date(time*1000); sf = new SimpleDateFormat("HH:mm:ss"); return sf.format(d); } /*时间戳转换成字符窜*/ public static String getDateToStringmonth(long time) { SimpleDateFormat sf = null; Date d = new Date(time*1000); sf = new SimpleDateFormat("yyyy年MM月dd日"); return sf.format(d); } /*时间戳转换成字符窜*/ public static String getDateTohour(long time) { SimpleDateFormat sf = null; Date d = new Date(time*1000); sf = new SimpleDateFormat("HH:mm"); return sf.format(d); } /*时间戳转换成字符窜*/ public static String getDateTorecod(long time) { SimpleDateFormat sf = null; Date d = new Date(time*1000); sf = new SimpleDateFormat("HH:mm MM/dd"); return sf.format(d); } //============================借助Calendar类获取今天、昨天、本周、上周、本年及特定时间的开始时间和结束时间（返回类型为date类型）======================== /** * 获取当天开始时间 * * @return */ public static Date getDayBegin() { Calendar cal = Calendar.getInstance(); cal.set(Calendar.HOUR_OF_DAY, 0);//0点 cal.set(Calendar.MINUTE, 0);//0分 cal.set(Calendar.SECOND, 0);//0秒 cal.set(Calendar.MILLISECOND, 0);//0毫秒 return cal.getTime(); } /** * 获取当天结束时间 * * @return */ public static Date getDayEnd() { Calendar cal = Calendar.getInstance(); cal.set(Calendar.HOUR_OF_DAY, 23);//23点 cal.set(Calendar.MINUTE, 59);//59分 cal.set(Calendar.SECOND, 59);//59秒 return cal.getTime(); } /** * 获取昨天开始时间 * * @return */ public static Date getBeginDayOfYesterday() { Calendar cal = Calendar.getInstance(); cal.setTime(getDayBegin());//当天开始时间 cal.add(Calendar.DAY_OF_MONTH, -1);//当天月份天数减1 return cal.getTime(); } /** * 获取昨天结束时间 * * @return */ public static Date getEndDayOfYesterday() { Calendar cal = Calendar.getInstance(); cal.setTime(getDayEnd());//当天结束时间 cal.add(Calendar.DAY_OF_MONTH, -1);//当天月份天数减1 return cal.getTime(); } /** * 获取明天开始时间 * * @return */ public static Date getBeginDayOfTomorrow() { Calendar cal = Calendar.getInstance(); cal.setTime(getDayBegin());//当天开始时间 cal.add(Calendar.DAY_OF_MONTH, 1);//当天月份天数加1 return cal.getTime(); } /** * 获取明天结束时间 * * @return */ public static Date getEndDayOfTomorrow() { Calendar cal = Calendar.getInstance(); cal.setTime(getDayEnd());//当天结束时间 cal.add(Calendar.DAY_OF_MONTH, 1);//当天月份天数加1 return cal.getTime(); } /** * 获取某个日期的开始时间 * * @param d * @return */ public static Timestamp getDayStartTime(Date d) { Calendar calendar = Calendar.getInstance(); if (null != d) { calendar.setTime(d); } calendar.set(calendar.get(Calendar.YEAR), calendar.get(Calendar.MONTH), calendar.get(Calendar.DAY_OF_MONTH), 0, 0, 0); calendar.set(Calendar.MILLISECOND, 0); return new Timestamp(calendar.getTimeInMillis()); } /** * 获取某个日期的结束时间 * * @param d * @return */ public static Timestamp getDayEndTime(Date d) { Calendar calendar = Calendar.getInstance(); if (null != d) { calendar.setTime(d); } calendar.set(calendar.get(Calendar.YEAR), calendar.get(Calendar.MONTH), calendar.get(Calendar.DAY_OF_MONTH), 23, 59, 59); calendar.set(Calendar.MILLISECOND, 999); return new Timestamp(calendar.getTimeInMillis()); } /** * 获取本周的开始时间 * * @return */ @SuppressWarnings("unused") public static Date getBeginDayOfWeek() { Date date = new Date(); if (date == null) { return null; } Calendar cal = Calendar.getInstance(); cal.setTime(date); int dayOfWeek = cal.get(Calendar.DAY_OF_WEEK); if (dayOfWeek == 1) { dayOfWeek += 7; } cal.add(Calendar.DATE, 2 - dayOfWeek); return getDayStartTime(cal.getTime()); } /** * 获取本周的结束时间 * * @return */ public static Date getEndDayOfWeek() { Calendar cal = Calendar.getInstance(); cal.setTime(getBeginDayOfWeek()); cal.add(Calendar.DAY_OF_WEEK, 6); Date weekEndSta = cal.getTime(); return getDayEndTime(weekEndSta); } /** * 获取上周开始时间 */ @SuppressWarnings("unused") public static Date getBeginDayOfLastWeek() { Date date = new Date(); if (date == null) { return null; } Calendar cal = Calendar.getInstance(); cal.setTime(date); int dayofweek = cal.get(Calendar.DAY_OF_WEEK); if (dayofweek == 1) { dayofweek += 7; } cal.add(Calendar.DATE, 2 - dayofweek - 7); return getDayStartTime(cal.getTime()); } /** * 获取上周的结束时间 * * @return */ public static Date getEndDayOfLastWeek() { Calendar cal = Calendar.getInstance(); cal.setTime(getBeginDayOfLastWeek()); cal.add(Calendar.DAY_OF_WEEK, 6); Date weekEndSta = cal.getTime(); return getDayEndTime(weekEndSta); } /** * 获取今年是哪一年 * * @return */ public static Integer getNowYear() { Date date = new Date(); GregorianCalendar gc = (GregorianCalendar) Calendar.getInstance(); gc.setTime(date); return Integer.valueOf(gc.get(1)); } /** * 获取本月是哪一月 * * @return */ public static int getNowMonth() { Date date = new Date(); GregorianCalendar gc = (GregorianCalendar) Calendar.getInstance(); gc.setTime(date); return gc.get(2) + 1; } /** * 获取本月的开始时间 * * @return */ public static Date getBeginDayOfMonth() { Calendar calendar = Calendar.getInstance(); calendar.set(getNowYear(), getNowMonth() - 1, 1); return getDayStartTime(calendar.getTime()); } /** * 获取本月的结束时间 * * @return */ public static Date getEndDayOfMonth() { Calendar calendar = Calendar.getInstance(); calendar.set(getNowYear(), getNowMonth() - 1, 1); int day = calendar.getActualMaximum(5); calendar.set(getNowYear(), getNowMonth() - 1, day); return getDayEndTime(calendar.getTime()); } /** * 获取上月的开始时间 * * @return */ public static Date getBeginDayOfLastMonth() { Calendar calendar = Calendar.getInstance(); calendar.set(getNowYear(), getNowMonth() - 2, 1); return getDayStartTime(calendar.getTime()); } /** * 获取上月的结束时间 * * @return */ public static Date getEndDayOfLastMonth() { Calendar calendar = Calendar.getInstance(); calendar.set(getNowYear(), getNowMonth() - 2, 1); int day = calendar.getActualMaximum(5); calendar.set(getNowYear(), getNowMonth() - 2, day); return getDayEndTime(calendar.getTime()); } /** * 获取本年的开始时间 * * @return */ public static Date getBeginDayOfYear() { Calendar cal = Calendar.getInstance(); cal.set(Calendar.YEAR, getNowYear()); cal.set(Calendar.MONTH, Calendar.JANUARY); cal.set(Calendar.DATE, 1); return getDayStartTime(cal.getTime()); } /** * 获取本年的结束时间 * * @return */ public static Date getEndDayOfYear() { Calendar cal = Calendar.getInstance(); cal.set(Calendar.YEAR, getNowYear()); cal.set(Calendar.MONTH, Calendar.DECEMBER); cal.set(Calendar.DATE, 31); return getDayEndTime(cal.getTime()); } /** * 两个日期相减得到的天数 * * @param beginDate * @param endDate * @return */ public static int getDiffDays(long beginDate, long endDate) { long diff = (endDate - beginDate) / (1000 * 60 * 60 * 24); int days = new Long(diff).intValue(); return days; } /** * 两个日期相减得到的毫秒数 * * @param beginDate * @param endDate * @return */ public static long dateDiff(Date beginDate, Date endDate) { long date1ms = beginDate.getTime(); long date2ms = endDate.getTime(); return date2ms - date1ms; } /** * 获取两个日期中的最大日起 * * @param beginDate * @param endDate * @return */ public static Date max(Date beginDate, Date endDate) { if (beginDate == null) { return endDate; } if (endDate == null) { return beginDate; } if (beginDate.after(endDate)) {//beginDate日期大于endDate return beginDate; } return endDate; } /** * 获取两个日期中的最小日期 * * @param beginDate * @param endDate * @return */ public static Date min(Date beginDate, Date endDate) { if (beginDate == null) { return endDate; } if (endDate == null) { return beginDate; } if (beginDate.after(endDate)) { return endDate; } return beginDate; } /** * 获取某月该季度的第一个月 * * @param date * @return */ public static Date getFirstSeasonDate(Date date) { final int[] SEASON = {1, 1, 1, 2, 2, 2, 3, 3, 3, 4, 4, 4}; Calendar cal = Calendar.getInstance(); cal.setTime(date); int sean = SEASON[cal.get(Calendar.MONTH)]; cal.set(Calendar.MONTH, sean * 3 - 3); return cal.getTime(); } /** * 返回某个日期下几天的日期 * * @param date * @param i * @return */ public static Date getNextDay(Date date, int i) { Calendar cal = new GregorianCalendar(); cal.setTime(date); cal.set(Calendar.DATE, cal.get(Calendar.DATE) + i); return cal.getTime(); } /** * 返回某个日期前几天的日期 * * @param date * @param i * @return */ public static Date getFrontDay(Date date, int i) { Calendar cal = new GregorianCalendar(); cal.setTime(date); cal.set(Calendar.DATE, cal.get(Calendar.DATE) - i); return cal.getTime(); } /** * 获取某年某月按天切片日期集合（某个月间隔多少天的日期集合） * * @param beginYear * @param beginMonth * @param k * @return */ @SuppressWarnings({"unchecked", "rawtypes"}) public static List getTimeList(int beginYear, int beginMonth, int k) { List list = new ArrayList(); Calendar begincal = new GregorianCalendar(beginYear, beginMonth, 1); int max = begincal.getActualMaximum(Calendar.DATE); for (int i = 1; i < max; i = i + k) { list.add(begincal.getTime()); begincal.add(Calendar.DATE, k); } begincal = new GregorianCalendar(beginYear, beginMonth, max); list.add(begincal.getTime()); return list; } /** * 获取某年某月到某年某月按天的切片日期集合（间隔天数的集合） * * @param beginYear * @param beginMonth * @param endYear * @param endMonth * @param k * @return */ @SuppressWarnings({"rawtypes", "unchecked"}) public static List getTimeList(int beginYear, int beginMonth, int endYear, int endMonth, int k) { List list = new ArrayList(); if (beginYear == endYear) { for (int j = beginMonth; j <= endMonth; j++) { list.add(getTimeList(beginYear, j, k)); } } else { { for (int j = beginMonth; j < 12; j++) { list.add(getTimeList(beginYear, j, k)); } for (int i = beginYear + 1; i < endYear; i++) { for (int j = 0; j < 12; j++) { list.add(getTimeList(i, j, k)); } } for (int j = 0; j <= endMonth; j++) { list.add(getTimeList(endYear, j, k)); } } } return list; } //=================================时间格式转换========================== /** * date类型进行格式化输出（返回类型：String） * * @param date * @return */ public static String dateFormat(Date date, String pattern) { SimpleDateFormat formatter = new SimpleDateFormat(pattern); String dateString = formatter.format(date); return dateString; } /** * date类型进行格式化输出（返回类型：String HH:mm:ss） * * @param date * @return * @author tianyu.tang */ public static String dateFormatDay(Date date) { SimpleDateFormat formatter = new SimpleDateFormat("HH:mm:ss"); String dateString = formatter.format(date); return dateString; } /** * 将"2015-08-31 21:08:06"型字符串转化为Date * * @param str * @return * @throws ParseException */ public static Date StringToDate(String str) throws ParseException { SimpleDateFormat formatter = new SimpleDateFormat("yyyy-MM-dd HH:mm:ss"); Date date = (Date) formatter.parse(str); return date; } /** * 将CST时间类型字符串进行格式化输出 * * @param str * @return * @throws ParseException */ public static String CSTFormat(String str) throws ParseException { SimpleDateFormat formatter = new SimpleDateFormat("EEE MMM dd HH:mm:ss zzz yyyy", Locale.US); Date date = (Date) formatter.parse(str); return dateFormat(date, "yyyy-MM-dd HH:mm:ss"); } /** * 将long类型转化为Date * * @param str * @return * @throws ParseException */ public static Date LongToDare(long str) throws ParseException { return new Date(str * 1000); } //====================================其他常见日期操作方法====================== /** * 判断当前日期是否在[startDate, endDate]区间 * * @param startDate 开始日期 * @param endDate 结束日期 * @return * @author jqlin */ public static boolean isEffectiveDate(Date startDate, Date endDate) { if (startDate == null || endDate == null) { return false; } long currentTime = new Date().getTime(); if (currentTime >= startDate.getTime() && currentTime <= endDate.getTime()) { return true; } return false; } /** * 得到二个日期间的间隔天数 * * @param secondString：后一个日期 * @param firstString：前一个日期 * @return */ public static String getTwoDay(String secondString, String firstString) { SimpleDateFormat myFormatter = new SimpleDateFormat("yyyy-MM-dd"); long day = 0; try { Date secondTime = myFormatter.parse(secondString); Date firstTime = myFormatter.parse(firstString); day = (secondTime.getTime() - firstTime.getTime()) / (24 * 60 * 60 * 1000); } catch (Exception e) { return ""; } return day + ""; } /** * 时间前推或后推分钟,其中JJ表示分钟. * * @param StringTime：时间 * @param minute：分钟（有正负之分） * @return */ public static String getPreTime(String StringTime, String minute) { SimpleDateFormat format = new SimpleDateFormat("yyyy-MM-dd HH:mm:ss"); String mydate1 = ""; try { Date date1 = format.parse(StringTime); long Time = (date1.getTime() / 1000) + Integer.parseInt(minute) * 60; date1.setTime(Time * 1000); mydate1 = format.format(date1); } catch (Exception e) { return ""; } return mydate1; } /** * 将短时间格式字符串转换为时间 yyyy-MM-dd * * @param strDate * @return */ public static Date strToDate(String strDate,String pattern) { SimpleDateFormat formatter = new SimpleDateFormat(pattern); ParsePosition pos = new ParsePosition(0); Date strtodate = formatter.parse(strDate, pos); return strtodate; } /** * 得到一个时间延后或前移几天的时间 * * @param nowdate：时间 * @param delay：前移或后延的天数 * @return */ public static String getNextDay(String nowdate, String delay) { try { SimpleDateFormat format = new SimpleDateFormat("yyyy-MM-dd"); String mdate = ""; Date d = strToDate(nowdate, "yyyy-MM-dd"); long myTime = (d.getTime() / 1000) + Integer.parseInt(delay) * 24 * 60 * 60; d.setTime(myTime * 1000); mdate = format.format(d); return mdate; } catch (Exception e) { return ""; } } /** * 判断是否闰年 * * @param ddate * @return */ public static boolean isLeapYear(String ddate) { /** * 详细设计： 1.被400整除是闰年，否则： 2.不能被4整除则不是闰年 3.能被4整除同时不能被100整除则是闰年 * 3.能被4整除同时能被100整除则不是闰年 */ Date d = strToDate(ddate, "yyyy-MM-dd"); GregorianCalendar gc = (GregorianCalendar) Calendar.getInstance(); gc.setTime(d); int year = gc.get(Calendar.YEAR); if ((year % 400) == 0) { return true; } else if ((year % 4) == 0) { if ((year % 100) == 0) { return false; } else { return true; } } else { return false; } } /** * 返回美国时间格式 * * @param str * @return */ public static String getEDate(String str) { SimpleDateFormat formatter = new SimpleDateFormat("yyyy-MM-dd"); ParsePosition pos = new ParsePosition(0); Date strtodate = formatter.parse(str, pos); String j = strtodate.toString(); String[] k = j.split(" "); return k[2] + k[1].toUpperCase() + k[5].substring(2, 4); } /** * 判断二个时间是否在同一个周 * * @param date1 * @param date2 * @return */ public static boolean isSameWeekDates(Date date1, Date date2) { Calendar cal1 = Calendar.getInstance(); Calendar cal2 = Calendar.getInstance(); cal1.setTime(date1); cal2.setTime(date2); int subYear = cal1.get(Calendar.YEAR) - cal2.get(Calendar.YEAR); if (0 == subYear) { if (cal1.get(Calendar.WEEK_OF_YEAR) == cal2.get(Calendar.WEEK_OF_YEAR)) { return true; } } else if (1 == subYear && 11 == cal2.get(Calendar.MONTH)) { // 如果12月的最后一周横跨来年第一周的话则最后一周即算做来年的第一周 if (cal1.get(Calendar.WEEK_OF_YEAR) == cal2.get(Calendar.WEEK_OF_YEAR)) { return true; } } else if (-1 == subYear && 11 == cal1.get(Calendar.MONTH)) { if (cal1.get(Calendar.WEEK_OF_YEAR) == cal2.get(Calendar.WEEK_OF_YEAR)) { return true; } } return false; } /** * 产生周序列,即得到当前时间所在的年度是第几周 * * @return */ public static String getSeqWeek() { Calendar c = Calendar.getInstance(Locale.CHINA); String week = Integer.toString(c.get(Calendar.WEEK_OF_YEAR)); if (week.length() == 1) week = "0" + week; String year = Integer.toString(c.get(Calendar.YEAR)); return year + "年第" + week + "周"; } /** * 获得一个日期所在的周的星期几的日期，如要找出2002年2月3日所在周的星期一是几号 * * @param sdate：日期 * @param num：星期几（星期天是一周的第一天） * @return */ public static String getWeek(String sdate, String num) { // 再转换为时间 Date dd = strToDate(sdate, "yyyy-MM-dd"); Calendar c = Calendar.getInstance(); c.setTime(dd); if (num.equals("1")) // 返回星期一所在的日期 c.set(Calendar.DAY_OF_WEEK, Calendar.MONDAY); else if (num.equals("2")) // 返回星期二所在的日期 c.set(Calendar.DAY_OF_WEEK, Calendar.TUESDAY); else if (num.equals("3")) // 返回星期三所在的日期 c.set(Calendar.DAY_OF_WEEK, Calendar.WEDNESDAY); else if (num.equals("4")) // 返回星期四所在的日期 c.set(Calendar.DAY_OF_WEEK, Calendar.THURSDAY); else if (num.equals("5")) // 返回星期五所在的日期 c.set(Calendar.DAY_OF_WEEK, Calendar.FRIDAY); else if (num.equals("6")) // 返回星期六所在的日期 c.set(Calendar.DAY_OF_WEEK, Calendar.SATURDAY); else if (num.equals("0")) // 返回星期日所在的日期 c.set(Calendar.DAY_OF_WEEK, Calendar.SUNDAY); return new SimpleDateFormat("yyyy-MM-dd").format(c.getTime()); } /** * 根据一个日期，返回是星期几的字符串 * * @param sdate * @return */ public static String getWeek(String sdate) { // 再转换为时间 Date date = strToDate(sdate, "yyyy-MM-dd"); Calendar c = Calendar.getInstance(); c.setTime(date); // int hour=c.get(Calendar.DAY_OF_WEEK); // hour中存的就是星期几了，其范围 1~7 // 1=星期日 7=星期六，其他类推 return new SimpleDateFormat("EEEE").format(c.getTime()); } /** * 根据一个日期，返回是星期几的字符串 * * @param sdate * @return */ public static String getWeekStr(String sdate) { String str = ""; str = getWeek(sdate); if ("1".equals(str)) { str = "星期日"; } else if ("2".equals(str)) { str = "星期一"; } else if ("3".equals(str)) { str = "星期二"; } else if ("4".equals(str)) { str = "星期三"; } else if ("5".equals(str)) { str = "星期四"; } else if ("6".equals(str)) { str = "星期五"; } else if ("7".equals(str)) { str = "星期六"; } return str; } /** * 两个时间之间的天数 * * @param date1 * @param date2 * @return */ public static long getDays(String date1, String date2) { if (date1 == null || date1.equals("")) return 0; if (date2 == null || date2.equals("")) return 0; // 转换为标准时间 SimpleDateFormat myFormatter = new SimpleDateFormat("yyyy-MM-dd"); Date date = null; Date mydate = null; try { date = myFormatter.parse(date1); mydate = myFormatter.parse(date2); } catch (Exception e) { } long day = (date.getTime() - mydate.getTime()) / (24 * 60 * 60 * 1000); return day; } /** * 形成如下的日历 ， 根据传入的一个时间返回一个结构 星期日 星期一 星期二 星期三 星期四 星期五 星期六 下面是当月的各个时间 * 此函数返回该日历第一行星期日所在的日期 * * @param sdate * @return */ public static String getNowMonth(String sdate) { // 取该时间所在月的一号 sdate = sdate.substring(0, 8) + "01"; // 得到这个月的1号是星期几 Date date = strToDate(sdate, "yyyy-MM-dd"); Calendar c = Calendar.getInstance(); c.setTime(date); int u = c.get(Calendar.DAY_OF_WEEK); String newday = getNextDay(sdate, (1 - u) + ""); return newday; } /** * 根据用户传入的时间表示格式，返回当前时间的格式 如果是yyyyMMdd，注意字母y不能大写 * * @param sformat * @return */ public static String getUserDate(String sformat) { Date currentTime = new Date(); SimpleDateFormat formatter = new SimpleDateFormat(sformat); String dateString = formatter.format(currentTime); return dateString; } /** * 返回一个i位数的随机数 * * @param i * @return */ public static String getRandom(int i) { Random jjj = new Random(); // int suiJiShu = jjj.nextInt(9); if (i == 0) return ""; String jj = ""; for (int k = 0; k < i; k++) { jj = jj + jjj.nextInt(9); } return jj; } // /** // * 取得数据库主键 生成格式为yyyymmddhhmmss+k位随机数 // * // * @param k：表示是取几位随机数，可以自己定 // * @return // */ // public static String getNo(int k) { // return getUserDate("yyyyMMddhhmmss") + getRandom(k); // } // // // public static void main(String[] args) { // System.out.println(getNo(8)); // } /** * 判断时间是否在时间段内 * * @param nowTime * @param beginTimeStr * @param endTimeStr * @return * @author tianyu.tang */ public static boolean belongCalendar(Date nowTime, String beginTimeStr, String endTimeStr) { SimpleDateFormat simpleDateFormat = new SimpleDateFormat("yyyyMMdd HH:mm:ss"); String nowTimeStr = simpleDateFormat.format(nowTime); String yearAndDay = nowTimeStr.substring(0, 8); //设置当前时间 Calendar date = Calendar.getInstance(); date.setTime(nowTime); //设置开始时间 beginTimeStr = yearAndDay + " " + beginTimeStr; endTimeStr = yearAndDay + " " + endTimeStr; Date beginTime = new Date(); Date endTime = new Date(); try { beginTime = simpleDateFormat.parse(beginTimeStr); endTime = simpleDateFormat.parse(endTimeStr); } catch (ParseException e) { e.printStackTrace(); } Calendar begin = Calendar.getInstance(); begin.setTime(beginTime); //设置结束时间 Calendar end = Calendar.getInstance(); end.setTime(endTime); //处于开始时间之后，和结束时间之前的判断 if (date.after(begin) && date.before(end)) { return true; } else { return false; } } /** * 获取传入日期的上一天 日期格式：yyyyMMdd * * @param strData * @return */ public static String getPreDateByDate(String strData) { SimpleDateFormat formatter = new SimpleDateFormat("yyyyMMdd"); Date parse = new Date(); try { parse = formatter.parse(strData); } catch (ParseException e) { e.printStackTrace(); } Calendar calendar = Calendar.getInstance(); calendar.setTime(parse); calendar.set(Calendar.DAY_OF_MONTH, calendar.get(Calendar.DAY_OF_MONTH) - 1); Date time = calendar.getTime(); String format = formatter.format(time); return format; } /** * 获取传入日期的下一天 日期格式：yyyyMMdd * * @param strData * @return */ public static String getNextDateByDate(String strData) { SimpleDateFormat formatter = new SimpleDateFormat("yyyyMMdd"); Date parse = new Date(); try { parse = formatter.parse(strData); } catch (ParseException e) { e.printStackTrace(); } Calendar calendar = Calendar.getInstance(); calendar.setTime(parse); calendar.set(Calendar.DAY_OF_MONTH, calendar.get(Calendar.DAY_OF_MONTH) + 1); Date time = calendar.getTime(); String format = formatter.format(time); return format; } /** * 往前推n月 */ public static Date getNextMonth(Date date, Integer s) { Calendar instance = Calendar.getInstance(); instance.setTime(date); instance.add(Calendar.MONTH, s); return instance.getTime(); } /** * 判断传入日期是否是周末 * @param date * @return * @throws ParseException */ public static Integer isWeekday(Date date) throws ParseException { int result; Calendar cal = Calendar.getInstance(); cal.setTime(date); if (cal.get(Calendar.DAY_OF_WEEK) == Calendar.SATURDAY || cal.get(Calendar.DAY_OF_WEEK) == Calendar.SUNDAY) { result = 2; } else result = 1; return result; } /** * 判断传入日期是否大于某个天数 * @param date * @param integer * @return */ public static Integer isBeyondDay(Date date, Integer integer) { Calendar instance = Calendar.getInstance(); instance.setTime(date); int i = instance.get(Calendar.DATE); if (i > integer) { return 2; } else { return 1; } } /** * 功能： 返回"yyyyMMdd" * * @author * @version */ public static String getTodayShort() { Date currentTime = new Date(); SimpleDateFormat formatter = new SimpleDateFormat("yyyyMMdd"); String dateString = formatter.format(currentTime); return dateString; } /** * 判断传入日期是星期几 * @param pTime * @return * @throws Throwable */ public static String dayForWeek(String pTime) throws Throwable { SimpleDateFormat format = new SimpleDateFormat("yyyyMMdd"); Date tmpDate = format.parse(pTime); Calendar cal = Calendar.getInstance(); String[] weekDays = {"7", "1", "2", "3", "4", "5", "6"}; try { cal.setTime(tmpDate); } catch (Exception e) { e.printStackTrace(); } int w = cal.get(Calendar.DAY_OF_WEEK) - 1; // 指示一个星期中的某天。 if (w < 0) w = 0; return weekDays[w]; } /** * 获取下个交易日 * * @return */ public static String getNextTradeDate() { return getTodayShort(); } /** * 获取当前交易日 * * @return */ public static String getNowTradeDate() { return getTodayShort(); } /** * 判断当前时间是否在如14:57-15:00之间 * * @return boolean */ public static boolean judgeIsSetBiddingTime(String startTime,String endTime) { //设置日期格式 SimpleDateFormat df = new SimpleDateFormat("HH:mm"); Date now = null; Date beginDate = null; Date endDate = null; try { now = df.parse(df.format(new Date())); beginDate = df.parse(startTime); endDate = df.parse(endTime); } catch (Exception e) { e.printStackTrace(); } Calendar date = Calendar.getInstance(); date.setTime(now); Calendar begin = Calendar.getInstance(); begin.setTime(beginDate); Calendar end = Calendar.getInstance(); end.setTime(endDate); return date.after(begin) && date.before(end); } /** * d昂前时间与系统时间比较 * @param currentTime * @param operTime * @param priceFresh * @return */ public static boolean subscribeTime(Long currentTime, Long operTime, String priceFresh) { int i = Integer.parseInt(priceFresh); long decline = i * 1000; return currentTime - operTime > decline; } /** * 功能： 返回"yyyyMMdd" * * @author * @version */ public static String getDateShort(Date date) { SimpleDateFormat formatter = new SimpleDateFormat("yyyyMMdd"); String dateString = formatter.format(date); return dateString; } /** * 功能： 返回"HH:mm:ss" * * @author * @version */ public static String getTimeShort(Date date) { SimpleDateFormat formatter = new SimpleDateFormat("HH:mm:ss"); String dateString = formatter.format(date); return dateString; } /** * 功能： 返回"HH:mm:ss" * * @author * @version */ public static String getNowTime() { SimpleDateFormat formatter = new SimpleDateFormat("yyyyMMdd HH:mm:ss"); String dateString = formatter.format(new Date()); return dateString; } public static Long nextMonth(Long mon,int flag) { Long res = 0L; Date date = mon==null ? new Date():new Date(mon);//当前日期 //SimpleDateFormat sdf = new SimpleDateFormat("yyyy/MM/dd");//格式化对象 Calendar calendar = Calendar.getInstance();//日历对象 calendar.setTime(date);//设置当前日期 calendar.add(Calendar.MONTH, flag);//月份减一为-1，加一为1 res =calendar.getTime().getTime(); // System.out.println(getDateToString(calendar.getTimeInMillis()));//输出格式化的日期 return res; } public static String getDistanceTime(long time1,long time2 ) { long day = 0; long hour = 0; long min = 0; long sec = 0; long diff ; String flag; if(time1<time2) { diff = time2 - time1; flag="前"; } else { diff = time1 - time2; flag="后"; } day = diff / (24 * 60 * 60); hour = (diff / (60 * 60 ) - day * 24); // min = ((diff / (60)) - day * 24 * 60 - hour * 60); if(day!=0)return day+"天"+hour+"小时"; if(hour!=0)return hour+"小时"; // if(min!=0)return min+"分钟"; return "0小时"; } }