@RequestMapping(value = "/userLogin", method = RequestMethod.POST, consumes = "application/json")
 public User userLogin(@RequestBody User user) {
   User loginUser = null;
   List<User> users = userService.userLogin(user);
   if (users != null && users.size() > 0) {
     loginUser = users.get(0);
   }
   return loginUser;
 }