CODEWITHSUNDEEP
javaspring-bootthymeleaf
Dolce Vita
Dolce Vita

Reputation: 11

Neither BindingResult nor plain target object for bean name 'bookDto' available as request attribute

I am working with spring boot and thymeleaf and I keep getting the "Neither BindingResult nor plain target object for bean name bookDto available as request attribute" when I return the index page after successful login

The weird thing is that the index page works fine when I search for it as localhost:8080/index.

I have also tried returning another page from login method and its only the index page giving me the error.

Below are my controllers methods and the index.html form 

@RequestMapping(value = "/login")
@PostMapping
public ModelAndView login(@ModelAttribute("loginForm") LoginForm loginForm, ModelAndView modelAndView, BindingResult bindignResult) {   

    AppUser userLoggedIn = userService.findByUserNameAndEncryptedPassword(loginForm.getUsername(), loginForm.getPassword());

    if (userLoggedIn == null){
            modelAndView.addObject("errorLogin", "Incorrect Credentials!");
            modelAndView.setViewName("signin");

    }else {
             modelAndView.setViewName("index");
         }

     return modelAndView;
}

filters books by their attributes

 @RequestMapping(value = "/search")
 @PostMapping
 public ModelAndView searchBooks(@ModelAttribute ("bookDto") BookDto bookDto, Model model) {

    model.addAttribute("books", bookService.listAll(searchFilterBuilder.buildFilter(bookDto)));
    model.addAttribute("bookDto", bookDto);
    return new ModelAndView("index");

  }

and finally my in index.html

   <form th:object="${bookDto}" th:action="@{/search}" method="post">

Upvotes: 0

Views: 49

Answers (1)

Simon Martinelli
Simon Martinelli

Reputation: 36103

The bookDto is sent as the request body so you have to get it like this

public ModelAndView searchBooks(BookDto bookDto, Model model) {

Simply remove @ModelAttribute

But you have to make sure that bookDto get's initialized! So when you are navigating to the index page you have to create a new BookDto:

modelAndView.setViewName("index");
model.addAttribute("bookDto", new BookDto());

Upvotes: 0

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