依据输入的日期 获得当前日期为周几
根据输入的日期 获得当前日期为周几
public static String getWeekOfDate(Date dt) {
String[] weekDays = {"周日", "周一", "周二", "周三", "周四", "周五", "周六"};
Calendar cal = Calendar.getInstance();
cal.setTime(dt);
int w = cal.get(Calendar.DAY_OF_WEEK) - 1;
if (w < 0)
w = 0;
return weekDays[w];
}