StringBuilder stringBuilder = new StringBuilder("[");

         String ssString;

         ArrayList<CompetitionsByCity> ccs =competitionMapper.getCmptList(hashMap);

 for (CompetitionsByCity tmp:ccs)

         {

             stringBuilder.append("{\"cmptId\":"+"\""+tmp.getCmptId()+"\""+","+"\"cmptName\":"+"\""+tmp.getCmptName()+"\""+","+

                     "\"duration\":"+"\""+tmp.getDuration()+"\""+","+"\"cmptStarLevel\":"+"\""+tmp.getCmptStarLevel()+"\""+","+"\"cmptCapacity\":"+"\""+tmp.getCmptCapacity()+"\""+","+"\"cmptLength\":"+"\""+tmp.getCmptLength()+"\""+

                     "\"cmptFavorByMe\":"+"\""+"0"+"\""+","+"\"imgId\":"+"\""+tmp.getImgId()+"\""+"},"); 

             //stringBuilder.append(stringBuilder);

         }

 String ssString;

         ArrayList<CompetitionsByCity> ccs = competitionMapper

                 .getCmptList(hashMap);

         Gson gson = new Gson();

         String str = gson.toJson(ccs);

         ssString = "\"size\":" + ccs.size() + "," + "\"cmptList\":" + str;

         return ssString;