大家好我每次尝试在我的春天调用验证器时都会收到以下错误

Servlet.service() for servlet spring threw exception: java.lang.IllegalStateException: Invalid target for Validator

请看看并帮助我解决这个错误,以前我用户登录页面的验证,它工作正常,但现在它无法正常工作.

这是我的代码片段.

调节器

@Controller
public class NewUserRegistration 
{
    @Autowired
    private UserService userService;    
    @Autowired
    private NewUserValidator newUserValidator;
    @InitBinder
    public void initBinder(WebDataBinder binder)
    {
       binder.setValidator(newUserValidator);
    }
    @RequestMapping(value="/newUserAdd",method=RequestMethod.POST)
    public String addUser(@modelattribute("user")@Valid User user,BindingResult result,Model model)
    {
          return "NewUser";
    }

}

验证器

@Component
public class NewUserValidator  implements Validator
{
    @Override
    public boolean supports(Class