Untitled

package com.project.springinventory.configuration;

import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.beans.factory.annotation.Qualifier;
import org.springframework.context.annotation.Configuration;
import org.springframework.security.config.annotation.authentication.builders.AuthenticationManagerBuilder;
import org.springframework.security.config.annotation.web.builders.HttpSecurity;
import org.springframework.security.config.annotation.web.configuration.EnableWebSecurity;
import org.springframework.security.config.annotation.web.configuration.WebSecurityConfigurerAdapter;
import org.springframework.security.core.userdetails.UserDetailsService;
import org.springframework.security.crypto.bcrypt.BCryptPasswordEncoder;

@Configuration
@EnableWebSecurity
public class SecurityConfiguration extends WebSecurityConfigurerAdapter {

    @Autowired
    @Qualifier("UsersService")
    private UserDetailsService userService;

    @Autowired
    public void configureGlobal(AuthenticationManagerBuilder auth) throws Exception {
        auth.userDetailsService(userService).passwordEncoder(new BCryptPasswordEncoder());
    }


    @Override
    protected void configure(HttpSecurity http) throws Exception {
        // TODO Auto-generated method stub
        http.authorizeRequests().antMatchers("/css/*,/imgs/*").permitAll().and().formLogin().loginPage("/login").loginProcessingUrl("/loginCheck").usernameParameter("username").passwordParameter("password").defaultSuccessUrl("/customermanagement").permitAll().and().logout().logoutUrl("/logout").permitAll();
        super.configure(http);
    }


}

package com.project.springinventory.controller;

import org.springframework.stereotype.Controller;
import org.springframework.web.bind.annotation.GetMapping;
import org.springframework.web.bind.annotation.ModelAttribute;
import org.springframework.web.bind.annotation.PostMapping;
import org.springframework.web.bind.annotation.RequestMapping;
import org.springframework.web.servlet.ModelAndView;
import com.project.springinventory.constant.ViewConstant;
import com.project.springinventory.entity.User;

@Controller
@RequestMapping("/")

public class MainIndexController {

    @GetMapping("/")
    public ModelAndView ViewPost(@ModelAttribute("EntityUser") User entityUser) {
        ModelAndView mav = new ModelAndView();

        // @Valid @ModelAttribute("EntityUser") User entityUser ,BindingResult
        // bindingResult

        // System.err.println("User: " + entityUser.getUsername() + " Pass: " +
        // entityUser.getPassword());

        // if (bindingResult.hasErrors()) {
        // mav.setViewName(ViewConstant.LOGINERROR_VIEW);
        // } else {

        // if (entityUser.getUsername().equalsIgnoreCase("admin") &&
        // entityUser.getPassword().equalsIgnoreCase("admin")) {
//      ViewConstant.REDIRECT_CONSTANT +
        mav.setViewName(ViewConstant.LOGIN_VIEW);
//      mav.addObject("EntityUser", entityUser);

        // } else {
        // mav.setViewName(ViewConstant.LOGINERROR_VIEW);
        // mav.addObject("EntityUser", new User());
        // }
        // }

        return mav;
    }

}

<!DOCTYPE html>
<html lang="en-US" xmlns:th="http://www.thymeleaf.org">

<head>

<meta charset="UTF-8" />

<title>Acceso</title>


</head>

<body>


    <div class="login-card">
        <h1>
            <span th:text="${name}"></span> <img class="candado"
                th:src="@{/img/candado.png}" src="/static/img/candado.png" />
        </h1>
        <br />

        <form  th:action="@{/login}"
            method="POST">
            <input type="hidden" name="${_csrf.parameterName}" value="${_csrf.token}"/>

            <input type="text" name="username" placeholder="Username" id="username"/>
<!--            <p th:if="${#fields.hasErrors('username')}" th:errors="*{username}">Username -->
<!--                has errors</p> -->
            <input type="password" name="pass" placeholder="Password" id="password"/>
<!--            <p th:if="${#fields.hasErrors('password')}" th:errors="*{password}">Password -->
<!--                has errors</p> -->
            <input type="submit" name="login" class="btn"
                value="Acceder" />
        </form>

        <div class="login-help">
            <a href="#">Forgot Password</a>
        </div>
    </div>


</body>

<link rel="stylesheet" th:href="@{/css/jquery-ui.css}"
    href="/static/css/jquery-ui.css" />

<link rel="stylesheet" th:href="@{/css/bootstrap.min.css}"
    href="/static/css/bootstrap.min.css" />

<link rel="stylesheet" th:href="@{/css/style.css}"
    href="/static/css/style.css" />

</html>