按月、季度、半年、年将时间区间切分

修复splitToHalfOfYears按半年切割

//将时间段按星期分割
   public static final List<Range> splitToWeeks(Date start, Date end) {
       List<Range> result = new ArrayList<>();
       result.add(Range.create(start));
       Date from = new Date(start.getTime() + 7L * 24 * 3600 * 1000);
       Date weekEnd = cn.hutool.core.date.DateUtil.endOfWeek(end);
       while (from.compareTo(weekEnd) <= 0) {
           Date dt = cn.hutool.core.date.DateUtil.beginOfWeek(from);

           CollectionUtil.getLast(result).end(new Date(dt.getTime() - 24L * 3600 * 1000));
           result.add(Range.create(dt));
           from.setTime(from.getTime() + 7L * 24 * 3600 * 1000);
       }
       CollectionUtil.getLast(result).end(end);
       return result;
   }

   //将时间段按照月分割
   public static final List<Range> splitToMonths(Date start, Date end) {
       List<Range> result = new ArrayList<>();
       result.add(Range.create(start));
       Calendar cal = Calendar.getInstance();
       cal.setTime(start);
       cal.add(Calendar.MONTH, 1);
       Date monthEnd = cn.hutool.core.date.DateUtil.endOfMonth(end);
       while (cal.getTimeInMillis() <= monthEnd.getTime()) {
           Date dt = cn.hutool.core.date.DateUtil.beginOfMonth(cal.getTime());
           CollectionUtil.getLast(result).end(new Date(dt.getTime() - 24L * 3600 * 1000));
           result.add(Range.create(dt));
           cal.add(Calendar.MONTH, 1);
       }
       CollectionUtil.getLast(result).end(end);
       return result;
   }

   //将时间段按照季度分割
   public static final List<Range> splitToQuarts(Date start, Date end) {
       List<Range> result = new ArrayList<>();
       result.add(Range.create(start));
       Calendar cal = Calendar.getInstance();
       cal.setTime(start);
       cal.add(Calendar.MONTH, 3);
       Date quartEnd = cn.hutool.core.date.DateUtil.endOfQuarter(end);
       while (cal.getTimeInMillis() <= quartEnd.getTime()) {
           Date dt = cn.hutool.core.date.DateUtil.beginOfQuarter(cal.getTime());
           CollectionUtil.getLast(result).end(new Date(dt.getTime() - 24L * 3600 * 1000));
           result.add(Range.create(dt));
           cal.add(Calendar.MONTH, 3);
       }
       CollectionUtil.getLast(result).end(end);
       return result;
   }

   //将时间段按照半年分割
   public static final List<Range> splitToHalfOfYears(Date start, Date end) {
       List<Range> result = new ArrayList<>();
       result.add(Range.create(start));
       Calendar cal = Calendar.getInstance();
       cal.setTime(start);
       cal.add(Calendar.MONTH, 6);
       int mon = cal.get(Calendar.MONTH);
       int tmpMon = DateUtil.month(end);
       Calendar tmp = Calendar.getInstance();
       if (tmpMon < 6) {
           tmp.setTimeInMillis(cal.getTimeInMillis());
           tmp.set(Calendar.MONTH, 5);
       } else {
           tmp.setTimeInMillis(cal.getTimeInMillis());
           tmp.set(Calendar.MONTH, 11);
       }
       tmp.set(Calendar.YEAR, DateUtil.year(end));
       Calendar halfYearEnd = cn.hutool.core.date.DateUtil.endOfMonth(tmp);
       long timeInMillis = halfYearEnd.getTimeInMillis();
       while (cal.getTimeInMillis() <= timeInMillis) {
           mon = cal.get(Calendar.MONTH);
           Calendar cal1 = Calendar.getInstance();
           if (mon < 6) {
               cal1.setTimeInMillis(cal.getTimeInMillis());
               cal1.set(Calendar.MONTH, 0);
           } else {
               cal1.setTimeInMillis(cal.getTimeInMillis());
               cal1.set(Calendar.MONTH, 6);
           }
           Date dt = cn.hutool.core.date.DateUtil.beginOfMonth(cal1.getTime());
           CollectionUtil.getLast(result).end(new Date(dt.getTime() - 24L * 3600 * 1000));
           result.add(Range.create(dt));
           cal.add(Calendar.MONTH, 6);
       }
       CollectionUtil.getLast(result).end(end);
       return result;
   }

   //将时间段按照年分割
   public static final List<Range> splitToYears(Date start, Date end) {
       List<Range> result = new ArrayList<>();
       result.add(Range.create(start));
       Calendar cal = Calendar.getInstance();
       cal.setTime(start);
       cal.add(Calendar.YEAR, 1);
       Date yearEnd = cn.hutool.core.date.DateUtil.endOfYear(end);
       while (cal.getTimeInMillis() <= yearEnd.getTime()) {
           Date dt = cn.hutool.core.date.DateUtil.beginOfYear(cal.getTime());
           CollectionUtil.getLast(result).end(new Date(dt.getTime() - 24L * 3600 * 1000));
           result.add(Range.create(dt));
           cal.add(Calendar.YEAR, 1);
       }
       CollectionUtil.getLast(result).end(end);
       return result;
   }

   //日期区间
   public static class Range {
       Date start;
       Date end;

       private Range(Date start) {
           this.start = start;
       }

       public static Range create(Date start) {
           return new Range(start);
       }

       public Range end(Date end) {
           this.end = end;
           return this;
       }

       public Date getStart() {
           return start;
       }

       public Date getEnd() {
           return end;
       }

       @Override
       public String toString() {
           return "[" + cn.hutool.core.date.DateUtil.format(start, "yyyy-MM-dd") + "-" + cn.hutool.core.date.DateUtil.format(end, "yyyy-MM-dd")
                   + "]";
       }
   }