public List<HotellistHotelarray> getHotelIdsByExcel(MultipartFile multipartFile){
        List<HotellistHotelarray> resultList=new ArrayList<>();
        //创建map集合 用于存储对应的酒店id信息
        Map<String,Set<Long>> map=new HashMap<>();
        //调用方法，获取上传的excel信息
        BaseResponseModel<Map<String, List<HotelExcelPo>>> model = this.addHotellistInfoByExcel(multipartFile);
        Map<String, List<HotelExcelPo>> listMap = model.getT();
        for (String key : listMap.keySet()) {
            HotellistHotelarray hotelarray = new HotellistHotelarray();
            //获取对应的map值
            List<HotelExcelPo> hotelExcelPoList = listMap.get(key);
            for (HotelExcelPo hotelExcelPo : hotelExcelPoList) {
                hotelarray.setCityid(key);
                if (map.containsKey(key)) {
                    map.get(key).add(hotelExcelPo.getHotelId());
                    Set<Long> hotelIds = map.get(key);
                    String join = StringUtils.join(hotelIds, ",");
                    hotelarray.setHotelarray(join);
                } else {
                    HashSet<Long> hashSet = new HashSet<>();
                    hashSet.add(hotelExcelPo.getHotelId());
                    map.put(key, hashSet);
                    Set<Long> hotelIds = map.get(key);
                    String join = StringUtils.join(hotelIds, ",");
                    hotelarray.setHotelarray(join);
                }
            }
            resultList.add(hotelarray);
        }
        return resultList;
    }