今天的Java检查日期是每两周一次

Question

我有几个要求，我需要验证今天的日期是否与条件匹配，如果是，则在数据库中创建记录。

但条件是这样的 - 每两周一次，每两周一次。 任何人都可以提供如何实现这一目标吗？

Answer 1

private static Calendar cacheCalendar;

            public static LocalDate getNDayOfMonth(int dayweek, int nthweek, int month, int year) {
                            LocalDate d = new LocalDate(year, month, 1).withDayOfWeek(dayweek);
                            if (d.getMonthOfYear() != month)
                                            d = d.plusWeeks(1);
                            return d.plusWeeks(nthweek - 1);
            }

            public static LocalDate getLastWeekdayOfMonth(int dayweek, int month, int year) {
                            LocalDate d = new LocalDate(year, month, 1).plusMonths(1).withDayOfWeek(dayweek);
                            if (d.getMonthOfYear() != month)
                                            d = d.minusWeeks(1);
                            return d;
            }

            public static void main(String[] args) {

                            cacheCalendar = Calendar.getInstance();

                            for (int i = 1; i < 13; i++) {
                                            // second wednesday of oct-2011

                                            LocalDate secondMonday = getNDayOfMonth(DateTimeConstants.MONDAY, 2, i, cacheCalendar.get(Calendar.YEAR));
                                            System.out.println("secondMonday= " + secondMonday);

                                            LocalDate secondTuesday = getNDayOfMonth(DateTimeConstants.TUESDAY, 2, i,
                                                                            cacheCalendar.get(Calendar.YEAR));
                                            System.out.println("secondTuesday= " + secondTuesday);

                                            LocalDate monthlyTuesday = getNDayOfMonth(DateTimeConstants.TUESDAY, 1, i,
                                                                            cacheCalendar.get(Calendar.YEAR));
                                            System.out.println("monthlyTuesday= " + monthlyTuesday);                                                

                                            LocalDate weeklyFirstFriday = getNDayOfMonth(DateTimeConstants.FRIDAY, 1, i,
                                                                            cacheCalendar.get(Calendar.YEAR));
                                            System.out.println("weeklyFirstFriday= " + weeklyFirstFriday);                                                


                            }                                
            }