InMemory

SecurityConfig.java

//InMemory
@Bean
public UserDetailsService userDetailsService() {

    UserDetails user1 = User.builder()
            .username("user1")
            .password(bCryptPasswordEncoder().encode("1234"))
            .roles("C")
            .build();

    UserDetails user2 = User.builder()
            .username("user2")
            .password(bCryptPasswordEncoder().encode("1234"))
            .roles("USER")
            .build();

    return new InMemoryUserDetailsManager(user1, user2);
}