스프링부트 Parameter 2 of constructor in *** required a bean of type 'org.springframework.security.config.annotation.authentication.builders.AuthenticationManagerBuilder' that could not be found. 해결

문제

스프링 프로젝트 시작 시 Parameter 2 of constructor in *** required a bean of type 'org.springframework.security.config.annotation.authentication.builders.AuthenticationManagerBuilder' that could not be found. 에러가 발생했다.

 

해결

-> SecurityConfig 클래스에 @EnableWebSecurity 추가하면 된다.

 

@Configuration
@EnableWebSecurity
public class SecurityConfig {

    @Bean
    public SecurityFilterChain filterChain(HttpSecurity http) throws Exception {
        http
                .csrf(AbstractHttpConfigurer::disable)

                .sessionManagement(httpSecuritySessionManagementConfigurer ->
                        httpSecuritySessionManagementConfigurer
                                .sessionCreationPolicy(SessionCreationPolicy.STATELESS)
                )
//
//                .headers(headers ->
//                        headers.frameOptions(HeadersConfigurer.FrameOptionsConfig::sameOrigin)
//                )

                .formLogin(AbstractHttpConfigurer::disable)
                .httpBasic(AbstractHttpConfigurer::disable);

        return http.build();
    }

}