/**
  * list 结构根据hotelId放在map中.
  *
  * @param list
  * @return map
  */
 public Map<String, String> list2Map(List<MobileHotelDest> list) {
   Map<String, String> resutlMap = new HashMap<String, String>();
   if (null != list && list.size() > 0) {
     for (int i = 0; i < list.size(); i++) {
       MobileHotelDest mhl = list.get(i);
       resutlMap.put(mhl.getCityCode(), mhl.getHotelgeoNodeVersion());
     }
   }
   return resutlMap;
 }