@RequestMapping("/save")
 @ResponseBody
 public Object saveUser(User user) {
   User saveUser = userService.save(user);
   Map map = new HashMap();
   map.put("state", saveUser.getId() != null ? "success" : "error");
   List<User> all = userRepository.findAll();
   map.put("rows", all);
   return map;
 }
  @RequestMapping("/findAll")
  @ResponseBody
  public Object findAll() {
    Map map = new HashMap();
    map.put("currentPage", 1);
    map.put("totalPage", 12);
    map.put("total", 110);
    map.put("pageSize", 15);

    List<User> all = userRepository.findAll();

    map.put("rows", all);
    return map;
  }
 @RequestMapping("/thymeleaf")
 public Object thymeleaf(Model model) {
   List<User> all = userRepository.findAll();
   model.addAttribute("users", all);
   return "thymeleaf-test";
 }