}`
`@Override
    protected void configure(HttpSecurity http) throws Exception {
        System.out.println("Http scurity called");
        http.httpBasic().
        and().
                authorizeRequests()
                .antMatchers("/").permitAll()
                .antMatchers("/login").permitAll()
                .antMatchers("/registration").permitAll()
                .antMatchers("/admin/**").hasAuthority("ADMIN")
                .antMatchers("/db").hasAuthority("DBA")
                .antMatchers("/user").hasAuthority("USER").anyRequest()
                .authenticated().and().csrf().disable().formLogin()
                .loginPage("/login").failureUrl("/login?error=true")
                .successHandler(customSuccessHandler)
                .usernameParameter("username")
                .passwordParameter("password")
                .and().logout()
                .logoutRequestMatcher(new AntPathRequestMatcher("/logout"))
                .logoutSuccessUrl("/").and().exceptionHandling()
                .accessDeniedPage("/access-denied");
    }`

`@RequestMapping(value = { "/", "/login" }, method = RequestMethod.GET)
public ModelAndView login() {
    System.out.println("/login called");
    ModelAndView modelAndView = new ModelAndView();
    modelAndView.setViewName("login");
    return modelAndView;
}`

Authentication auth = SecurityContextHolder.getContext().getAuthentication();
    String currentUser = null;
    if (!(auth instanceof AnonymousAuthenticationToken)) {
        currentUser = auth.getName();
    }

    User user1 = (User) SecurityContextHolder.getContext().getAuthentication().getPrincipal();
    user1.getAuthorities();
    System.out.println("++++++++++++++++++++++++++++++");
    System.out.println(request == null);
    Users u = (Users) request.getSession(false).getAttribute("user");
    Uniconnect uni = (Uniconnect) request.getSession(false).getAttribute("uniconnect");
    UserUniconnect uu = new UserUniconnect();
    uu.setUser(u);
    uu.setUniconnect(uni);

    return uu;
}`