java得到兩個日期之間的工作日
阿新 • • 發佈:2018-11-13
public static List<String> getWorkDays(String date1,String date2)throws Exception{ SimpleDateFormat format = new SimpleDateFormat("yyyy-MM-dd"); //首先得到兩個日期之間的所有日期資訊 List<String> allDays = new ArrayList<>(); int dayTime = 24*60*60*1000; long d1 = format.parse(date1).getTime(); longd2 = format.parse(date2).getTime(); while(d2>=d1){ String time = format.format(d1); allDays.add(time); d1+=dayTime; } //將得到的所有日期遍歷,將每個日期的星期資訊取出,然後將週日和週六的過濾掉即可 Calendar calendar = Calendar.getInstance(); List<String> workdays = new ArrayList<>(); for(String str : allDays){ calendar.setTime(format.parse(str)); int week = calendar.get(Calendar.DAY_OF_WEEK); if(week!=1 && week!=7){ workdays.add(str); } } return workdays; } public static void main(String[] args) throws Exception{ List<String> result = getWorkDays("2018-02-01","2018-02-24"); System.out.println(result); }