Brtdku

I am trying to make a simple registration/login mechanism using Spring Boot + Thymeleaf.

I managed to register a user successfully (checked the new entry in the h2-console) but I have a problem while trying to log in.

Specifically, the application is redirected to /login?error page and there is no message at the console indicating what is wrong.

After debugging I discovered that the application does not stop at my Post controller method.

I provide you with my code:

login.html

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

            <div class="form-group">

                <label for="username">Username</label>

                <input th:field="*{username}" type="text" id="username" name="username" class="form-control" autofocus="autofocus"

                       placeholder="Username">

            </div>

            <div class="form-group">

                <label for="password">Password</label>:

                <input th:field="*{password}" type="password" id="password" name="password" class="form-control" placeholder="Password">

            </div>

            <div class="form-group">

                <div class="row">

                    <div class="col-sm-6 col-sm-offset-3">

                        <input type="submit"

                               name="login-submit"

                               id="login-submit"

                               class="form-control btn btn-success"

                               value="Log In">

                    </div>

                    <div class="col-sm-6 col-sm-offset-3">

                        <a th:href="@{/register}">Register</a>

                    </div>

                </div>

            </div>

        </form>

UserController.java

    @Controller

public class UserController {



    @Autowired

    private UserService userService;



    @Autowired

    private SecurityService securityService;



    @GetMapping("/login")

    public String login(Model model) {

        model.addAttribute("user", new User());

        return "login";

    }



    @PostMapping("/login")

    public String login(@ModelAttribute("user") User user) {

        securityService.login(user.getUsername(), user.getPassword());

        return "redirect:/index";

    }



    @GetMapping("/register")

    public String register(Model model) {

        model.addAttribute("user", new User());

        return "register";

    }



    @PostMapping("/register")

    public String register(@ModelAttribute("user") User user) {

        userService.save(user);

        return "redirect:/login";

    }

}

Please help, thanks in advance!

EDIT:

SecurityConfig.java

    @Configuration

public class SecurityConfig extends WebSecurityConfigurerAdapter {



    @Autowired

    private UserDetailsService userDetailsService;



    @Override

    protected void configure(HttpSecurity http) throws Exception {

        http

                .authorizeRequests()

                .antMatchers("/h2-console/**", "/register**").permitAll()

                .anyRequest().authenticated()

                .and()

                .formLogin()

                .loginPage("/login")

                .permitAll();



        http.csrf().disable();

        http.headers().frameOptions().disable();

    }



    @Autowired

    public void configureGlobal(AuthenticationManagerBuilder auth) throws Exception {

        auth.userDetailsService(userDetailsService).passwordEncoder(bCryptPasswordEncoder());

    }



    @Bean("authenticationManager")

    @Override

    public AuthenticationManager authenticationManagerBean() throws Exception {

        return super.authenticationManagerBean();

    }



    @Bean

    public BCryptPasswordEncoder bCryptPasswordEncoder() {

        return new BCryptPasswordEncoder();

    }

}

You don't have to implement the Login by yourself.

Simply create a login.html with a form like this:

<form action="#" th:action="@{/login}" method="post">

    <input class="form-control" id="username" name="username" th:autofocus="true"/>

    <input class="form-control" id="password" name="password"                             

    <button>Login</button>

</form>

Spring will handle everything for you.