@MenuItem
 @ResponseBody
 @RequestMapping(
     value = "/json",
     method = RequestMethod.GET,
     produces = "application/json; charset=UTF-8")
 public String jsonGetAll() {
   String rc = serializationService.jsonSerialize(userService.findAll());
   // System.out.println(rc);
   return rc;
 }
 @MenuItem
 @RequestMapping(method = RequestMethod.GET)
 public String home(Model model) {
   model.addAttribute("userList", userService.findAll());
   return "user/home";
 }