스프링 AOP 구현하기

예제

@Slf4j
@Repository
public class OrderRepository {

    public String save(String itemId) {
        log.info("[orderRepository] 실행");
        //저장 로직
        if (itemId.equals("ex")) {
            throw new IllegalStateException("예외 발생!");
        }
        return "ok";
    }
}
@Slf4j
@Service
public class OrderService {

    private final OrderRepository orderRepository;

    public OrderService(OrderRepository orderRepository) {
        this.orderRepository = orderRepository;
    }

    public void orderItem(String itemId) {
        log.info("[orderService] 실행");
        orderRepository.save(itemId);
    }
}
@Slf4j
@SpringBootTest
public class AopTest {

    @Autowired OrderService orderService;
    @Autowired OrderRepository orderRepository;

    @Test
    void aopInfo() {
        log.info("isAopProxy, orderService={}", AopUtils.isAopProxy(orderService));//false
        log.info("isAopProxy, orderRepository={}", AopUtils.isAopProxy(orderRepository));//false
    }

    @Test
    void success() {
        orderService.orderItem("itemA");
    }

    @Test
    void exception() {
        assertThatThrownBy(() -> orderService.orderItem("ex"))
                .isInstanceOf(IllegalStateException.class);
    }
}

  • 현재는 AOP 관련 코드가 전혀 없으므로 당연히 false가 나온다.

img.png

이제 버전을 올려보면서 AOP를 구현해보자.

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