Spring Security

 @Override
protected void configure(HttpSecurity http) throws Exception {
    http.authorizeRequests()
            .antMatchers("/admin*/**").hasRole("ADMIN")
            .antMatchers("/user*/**").hasRole("USER")
            .antMatchers("/dba*/**").hasRole("DBA").and().formLogin().loginPage("/index").permitAll()
            .loginProcessingUrl("/login").usernameParameter("email").passwordParameter("password").and()
            .rememberMe().rememberMeParameter("remember-me").tokenRepository(tokenRepository)
            .tokenValiditySeconds(86400).and().csrf().and().exceptionHandling().accessDeniedPage("/Access_Denied");
}

@Controller
@RequestMapping("/")
@SessionAttributes("roles")
public class IndexController {

    private static final Logger logger = LoggerFactory.getLogger(Atividades.class);

    @Autowired
    AtividadesService as;

    @Autowired
    UserService userService;

    @Autowired
    UserProfileService userProfileService;

    @Autowired
    MessageSource messageSource;

    @Autowired
    PersistentTokenBasedRememberMeServices persistentTokenBasedRememberMeServices;

    @Autowired
    AuthenticationTrustResolver authenticationTrustResolver;


   @RequestMapping(value = { "/"}, method = RequestMethod.GET)
    public String homePage(ModelMap model) {
        //Lista as atividades da semana
        List<Atividades> atividades = as.listAllAtividades();
        model.addAttribute("atividades", atividades);
        return "index";
    }

    @RequestMapping(value = { "/admin" }, method = RequestMethod.GET)
    public String listUsers(ModelMap model) {
        List<AppUser> users = userService.listAllUsers();
        model.addAttribute("users", users);
        model.addAttribute("loggedinuser", getPrincipal());
        return "/admin/admin";
    }

    @ModelAttribute("roles")
    public List<UserProfile> initializeProfiles() {
        return userProfileService.findAll();
    }

    @RequestMapping(value = "/Access_Denied", method = RequestMethod.GET)
    public String accessDeniedPage(ModelMap model) {
        model.addAttribute("loggedinuser", getPrincipal());
        return "accessDenied";
    }

    @RequestMapping(value = "/login", method = RequestMethod.GET)
    public String loginPage() {
        if (isCurrentAuthenticationAnonymous()) {
            return "login";
        } else {
            return "redirect:/admin";
        }
    }

    @RequestMapping(value="/logout", method = RequestMethod.GET)
    public String logoutPage (HttpServletRequest request, HttpServletResponse response){
        Authentication auth = SecurityContextHolder.getContext().getAuthentication();
        if (auth != null){
            //new SecurityContextLogoutHandler().logout(request, response, auth);
            persistentTokenBasedRememberMeServices.logout(request, response, auth);
            SecurityContextHolder.getContext().setAuthentication(null);
        }
        return "redirect:/login?logout";
    }

    private String getPrincipal(){
        String userName = null;
        Object principal = SecurityContextHolder.getContext().getAuthentication().getPrincipal();

        if (principal instanceof UserDetails) {
            userName = ((UserDetails)principal).getUsername();
        } else {
            userName = principal.toString();
        }
        return userName;
    }

    private boolean isCurrentAuthenticationAnonymous() {
        final Authentication authentication = SecurityContextHolder.getContext().getAuthentication();
        return authenticationTrustResolver.isAnonymous(authentication);
    }

}

@RequestMapping(value = "/login", method = RequestMethod.GET)
public String loginPage() {
    if (isCurrentAuthenticationAnonymous()) {
        return "login";
    } else {
        return "redirect:/admin";
    }
}