java输入任意时间计算几天后时间（除节假日）

    public String holidayDate(String date,Integer day) throws ParseException {
        DateFormat format = new SimpleDateFormat("yyyyMM");
        SimpleDateFormat sdf = new SimpleDateFormat("yyyy-MM-dd HH:mm:ss");
        Date newDate = new Date();
        String yearMonth = format.format(newDate);
        //获取节假日时间
        List<String> list = configMapper.holidayList(yearMonth);
        int ADay = day;
        int actualDay = day;
        for (int i= 1 ;i <= ADay;i++){
           String  date1 = date2(sdf.parse(date),i);
           if(list != null && list.size()>0){
               for (String s :list){
                   if (date1.equals(s)){
                       actualDay++;
                       ADay++;
                   }
               }
           }
        }
        String newDay = date(sdf.parse(date),actualDay);
        return newDay;
    }
    private  String date (Date date,int day){
        SimpleDateFormat sf = new SimpleDateFormat("yyyy-MM-dd HH:mm:ss");
        Calendar c = Calendar.getInstance();
        c.setTime(date);
      //  System.out.println("当前日期:"+sf.format(c.getTime()));
        c.add(Calendar.DAY_OF_MONTH, day);
      //  System.out.println("增加一天后日期:"+sf.format(c.getTime()));
        return  sf.format(c.getTime());
    }
    private  String date2 (Date date,int day){
        SimpleDateFormat sf = new SimpleDateFormat("yyyyMMdd");
        Calendar c = Calendar.getInstance();
        c.setTime(date);
        c.add(Calendar.DAY_OF_MONTH, day);
        return  sf.format(c.getTime());
    }