使用java指向前一个工作日

虽然您应该考虑使用Joda Time库，但从 Java Calendar API开始：

public Date getPreviousWorkingDay(Date date) {    Calendar cal = Calendar.getInstance();    cal.setTime(date);    int dayOfWeek;    do {        cal.add(Calendar.DAY_OF_MONTH, -1);        dayOfWeek = cal.get(Calendar.DAY_OF_WEEK);    } while (dayOfWeek == Calendar.SATURDAY || dayOfWeek == Calendar.SUNDAY);    return cal.getTime();}

仅考虑周末。您必须添加其他支票才能处理您考虑放假的日子。例如，你可以添加

||isHoliday(cal)

while

public boolean isHoliday(Calendar cal) {    int year = cal.get(Calendar.YEAR);    int month = cal.get(Calendar.MONTH) + 1;    int dayOfMonth = cal.get(Calendar.DAY_OF_MONTH);    if (month == 12 && dayOfMonth == 25) {        return true;    }    // more checks    return false;}