response.setCharacterEncoding("UTF-8");
response.setHeader("Content-Type","text/html;charset=UTF-8");
response.setContentType("text/html;charset=UTF-8");
response.getOutputStream().write(("{\"response\":{\"message\":\"success\",\"result\":\"success\",\"responseCode\":\"\",\"total\":\""+count+"\",\"data\":"+rtn+"}}").getBytes("UTF-8"));