WebSecurityConfigurerAdapter is deprecated 가 불편하신 분들을 위해

우선 참고하셔야할 링크 

https://spring.io/blog/2022/02/21/spring-security-without-the-websecurityconfigureradapter

1. HttpSecurty http << 오버라이드 대신 

@Bean
public SecurityFilterChain filterChain(HttpSecurity http) throws Exception {
    http.authorizeRequests()
            .mvcMatchers("/", "/info", "/account/**").permitAll()
            .mvcMatchers("/admin").hasRole("ADMIN")
            .anyRequest().authenticated();
    http.formLogin();
    http.httpBasic();

    return http.build();
}

2.  inmemory 유저 추가 

@Bean
public InMemoryUserDetailsManager userDetailsService() {
    UserDetails user = User.withUsername("user")
            .password("{noop}123")
            .roles("USER")
            .build();
    UserDetails admin = User.withUsername("admin")
            .password("{noop}123")
            .roles("ADMIN")
            .build();
    UserDetails[] userDetails = new UserDetails[2];
    userDetails[0] = user;
    userDetails[1] = admin;
    return new InMemoryUserDetailsManager(userDetails);
}

굳이 배열로 안하고 그냥 다 써도 되는듯 해용 

@Bean 잊지 않기