인프런 커뮤니티 질문&답변

안녕하세요.

ComponentScan 동작하지 않아 문의드립니다.

AutoAppConfig

@Configuration
@ComponentScan(
        excludeFilters = @ComponentScan.Filter(type = FilterType.ANNOTATION, classes = Configuration.class)
)
public class AutoAppConfig {

}

MemberServiceImpl

@Component
public class MemberServiceImpl implements MemberService{

   // App Config 적용 전
   // private final MemberRepository memberRepository = new MemoryMemberRepository();

   // App Config 적용 후 -> DIP 충족 (interface 에만 의존)
    private final MemberRepository memberRepository;

    @Autowired // ac.getBean(MemberRepository.class)
    public MemberServiceImpl(MemberRepository memberRepository) {
        this.memberRepository = memberRepository;
    }

    @Override
    public void join(Member member) {
        memberRepository.save(member);
    }

    @Override
    public Member findMember(Long memberId) {
        return memberRepository.findById(memberId);
    }

    //테스트 용도
    public MemberRepository getMemberRepository() {
        return memberRepository;
    }
}

MemoryMemberRepository

@Component
public class MemoryMemberRepository implements MemberRepository{

    private static Map<Long, Member> store = new HashMap<>();

    @Override
    public void save(Member member) {
        store.put(member.getId(), member);
    }

    @Override
    public Member findById(Long memberId) {
        return store.get(memberId);
    }
}

AutoAppConfigTest

public class AutoAppConfigTest {
    @Test
    void basicScan(){
        ApplicationContext ac = new AnnotationConfigApplicationContext(AutoAppConfig.class);

//        MemberService memberService = ac.getBean(MemberService.class);
//        assertThat(memberService).isInstanceOf(MemberService.class);

        String[] beanDefinitionNames = ac.getBeanDefinitionNames();
        for (String beanDefinitionName : beanDefinitionNames) {
            System.out.println("beanDefinitionName = " + beanDefinitionName);
        }
    }
}

테스트코드에 대한 결과

02:29:42.506 [main] DEBUG org.springframework.context.annotation.AnnotationConfigApplicationContext - Refreshing org.springframework.context.annotation.AnnotationConfigApplicationContext@272113c4

02:29:42.523 [main] DEBUG org.springframework.beans.factory.support.DefaultListableBeanFactory - Creating shared instance of singleton bean 'org.springframework.context.annotation.internalConfigurationAnnotationProcessor'

02:29:42.672 [main] DEBUG org.springframework.beans.factory.support.DefaultListableBeanFactory - Creating shared instance of singleton bean 'org.springframework.context.event.internalEventListenerProcessor'

02:29:42.674 [main] DEBUG org.springframework.beans.factory.support.DefaultListableBeanFactory - Creating shared instance of singleton bean 'org.springframework.context.event.internalEventListenerFactory'

02:29:42.675 [main] DEBUG org.springframework.beans.factory.support.DefaultListableBeanFactory - Creating shared instance of singleton bean 'org.springframework.context.annotation.internalAutowiredAnnotationProcessor'

02:29:42.677 [main] DEBUG org.springframework.beans.factory.support.DefaultListableBeanFactory - Creating shared instance of singleton bean 'org.springframework.context.annotation.internalCommonAnnotationProcessor'

02:29:42.686 [main] DEBUG org.springframework.beans.factory.support.DefaultListableBeanFactory - Creating shared instance of singleton bean 'autoAppConfig'

beanDefinitionName = org.springframework.context.annotation.internalConfigurationAnnotationProcessor

beanDefinitionName = org.springframework.context.annotation.internalAutowiredAnnotationProcessor

beanDefinitionName = org.springframework.context.annotation.internalCommonAnnotationProcessor

beanDefinitionName = org.springframework.context.event.internalEventListenerProcessor

beanDefinitionName = org.springframework.context.event.internalEventListenerFactory

beanDefinitionName = autoAppConfig

컴포넌트가 하나도 스캔되지 않는데, 왜그런걸까요..?

자료와 계속 비교해봐도 모르겠습니다.