Joda Time - 获得一年中的所有周

Question

有没有办法获得一周的所有周,加上每周的开始和结束日期？(与Joda-Time合作)

这样的事情(2012):

周:21开始:2012年5月21日结束:27.05.12

谢谢你的帮助

Answer 1

试试这个:

SimpleDateFormat df = new SimpleDateFormat("dd.MM.yyyy"); 
Period weekPeriod = new Period().withWeeks(1);
DateTime startDate = new DateTime(2012, 1, 1, 0, 0, 0, 0 );
DateTime endDate = new DateTime(2013, 1, 1, 0, 0, 0, 0 );
Interval i = new Interval(startDate, weekPeriod );
while(i.getEnd().isBefore( endDate)) {
    System.out.println( "week : " + i.getStart().getWeekOfWeekyear()
            + " start: " + df.format( i.getStart().toDate() )
            + " ending: " + df.format( i.getEnd().minusMillis(1).toDate()));
    i = new Interval(i.getStart().plus(weekPeriod), weekPeriod);
}  

请注意,周数从52开始,然后从1 - 51开始,因为1月1日不在星期日.

如果您想要查看每个星期一到星期日的日期:

SimpleDateFormat df = new SimpleDateFormat("dd.MM.yyyy"); 
Period weekPeriod = new Period().withWeeks(1);
DateTime startDate = new DateTime(2012, 1, 1, 0, 0, 0, 0 );
while(startDate.getDayOfWeek() != DateTimeConstants.MONDAY) {
    startDate = startDate.plusDays(1);
}

DateTime endDate = new DateTime(2013, 1, 1, 0, 0, 0, 0);
Interval i = new Interval(startDate, weekPeriod);
while(i.getStart().isBefore(endDate)) {
    System.out.println("week : " + i.getStart().getWeekOfWeekyear()
            + " start: " + df.format(i.getStart().toDate())
            + " ending: " + df.format(i.getEnd().minusMillis(1).toDate()));
    i = new Interval(i.getStart().plus(weekPeriod), weekPeriod);
}