@RequiredArgsConstructor를 사용 못하는 경우

같은 타입의 빈을 복수로 정의했을 때는 모호성 에러가 발생하는데 이 때 생성자를 직접 정의해 객체를 주입할 때 @Qualifier를 사용해서 컴포넌트를 명시한다.

public SecurityConfig(
          CustomUserDetails customUserDetails,
          PasswordEncoder passwordEncoder,
          AuthenticationDetailsSource authenticationDetailsSource,
          @Qualifier("customAuthSuccessHandler") AuthenticationSuccessHandler successHandler,
          @Qualifier("customAuthFailureHandler") AuthenticationFailureHandler failureHandler) {
    this.customUserDetails = customUserDetails;
    this.passwordEncoder = passwordEncoder;
    this.authenticationDetailsSource = authenticationDetailsSource;
    this.authenticationSuccessHandler = successHandler;
    this.authenticationFailureHandler = failureHandler;
}
  
...
  
@Component("customAuthSuccessHandler")
public class CustomAuthenticationSuccessHandler extends SimpleUrlAuthenticationSuccessHandler {
  ...
}
  
@Component("customAuthFailureHandler")
public class CustomAuthenticationFailureHandler extends SimpleUrlAuthenticationFailureHandler {
  ...
}