OrderServiceTest 상품 주문 테스트 중 오류

안녕하세요, 선생님!

강의에서 보여주신 코드와 완전히 똑같지는 않습니다. 여러 개의 Item들을 담은 ArrayList, 각 Item의 주문 수량들을 담은 ArrayList를 memberId와 함께 넘겨 order 메소드를 만들려고 합니다.

그런데..Order 엔티티의 기본키 매핑(@Id)을 Long으로 했는데도 이런 오류가 발생합니다. 어떻게 해결할 수 있을까요..ㅠㅠ Member, Order, OrderItem 의 id 타입이 전부 Long인데 왜 java.lang.String이 발생하는 지도 잘 모르겠습니다..!

org.springframework.orm.jpa.JpaSystemException: Unknown integral data type for ids : java.lang.String; nested exception is org.hibernate.id.IdentifierGenerationException: Unknown integral data type for ids : java.lang.String

OrderServiceTest.java 입니다.

@SpringBootTest
@Transactional
class OrderServiceTest {

    @PersistenceContext
    EntityManager em;

    @Autowired OrderService orderService;
    @Autowired
    OrderRepository orderRepository;

    @Test
    public void 상품주문() {
        Member member = createMember();
        Book item1 = createBook("시골 JPA", 10000, 10);
        Book item2 = createBook("도시 JPA", 20000, 15);
        Book item3 = createBook("부산 Spring", 30000, 12);
        Book item4 = createBook("서울 클린코드", 25000, 7);
        int orderCount1 = 2;
        int orderCount2 = 3;
        int orderCount3 = 5;
        int orderCount4 = 4;
        ArrayList<Item> items = new ArrayList<>();
        items.add(item1);
        items.add(item2);
        items.add(item3);
        items.add(item4);
        ArrayList<Integer> itemCounts = new ArrayList<>();
        itemCounts.add(orderCount1);
        itemCounts.add(orderCount2);
        itemCounts.add(orderCount3);
        itemCounts.add(orderCount4);
        Long orderId = orderService.order(member.getId(), items, itemCounts);

        Order getOrder = orderRepository.findOne(orderId);

        Assertions.assertThat(getOrder.getStatus()).isEqualTo(OrderStatus.ORDER);


    }

    private Member createMember() {
        Member member = new Member();
        member.setName("회원1");
        member.setAddress(new Address("서울", "강가", "123-123"));
        em.persist(member);
        return member;
    }
    private Book createBook(String name, int price, int stockQuantity) {
        Book book = new Book();
        book.setName(name);
        book.setStockQuantity(stockQuantity);
        book.setPrice(price);
        em.persist(book);
        return book;
    }

}

OrderService.java 입니다.

@Service
@Transactional(readOnly = true)
@RequiredArgsConstructor
public class OrderService {

    private final MemberRepository memberRepository;
    private final OrderRepository orderRepository;
    private final ItemRepository itemRepository;

    /** 주문 **/
    @Transactional
    public Long order(Long memberId, ArrayList<Item> items, ArrayList<Integer> itemCounts) {
        if (items.size() != itemCounts.size()) {
            throw new IllegalStateException("정보가 안 맞다..! -_- ");
        }
        //멤버 조회
        Member member = memberRepository.findOne(memberId);

        //배송정보 생성
        Delivery delivery = new Delivery();
        delivery.setAddress(member.getAddress());
        delivery.setStatus(DeliveryStatus.READY);

        //상품 조회 + 주문상품 생성 (여러 개)
        List<OrderItem> orderItems = new ArrayList<>();
        for (int i = 0; i < items.size(); i++) {
            Item item = items.get(i);
            Integer getCount = itemCounts.get(i);
            OrderItem orderItem = OrderItem.createOrderItem(item, item.getPrice(), getCount);
            orderItems.add(orderItem);
        }

        //주문 생성
        Order order = Order.createOrder(member, delivery, orderItems);

        //주문 저장
        orderRepository.save(order);
        return order.getId();
    }

    @Transactional
    public void cancelOrder(Long orderId) {
        Order order = orderRepository.findOne(orderId);
        order.cancel();
    }

    /** 주문 검색 */

}

OrderRepository.java 입니다.

@Repository
@RequiredArgsConstructor
public class OrderRepository {

    private final EntityManager em;

    public void save(Order order) {
        em.persist(order);
    }

    public Order findOne(Long id) {
        return em.find(Order.class, id);
    }

    // public List<Order> findAll(OrderSearch orderSearch) { ... }
    // todo 검색 기능
}

에러 중간에 ArrayList.foreach에 대한 에러가 나오는데 혹시 OrderService에 있는 order 메소드에 ArrayList를 인자로 하는 게 잘못인지... 만약 그렇다면 왜 잘못인지 아니면 다른 원인이 있는지 잘 모르겠습니다.....!

에러 전체입니다.

at org.springframework.orm.jpa.vendor.HibernateJpaDialect.convertHibernateAccessException(HibernateJpaDialect.java:331)

at org.springframework.orm.jpa.vendor.HibernateJpaDialect.translateExceptionIfPossible(HibernateJpaDialect.java:233)

at org.springframework.orm.jpa.AbstractEntityManagerFactoryBean.translateExceptionIfPossible(AbstractEntityManagerFactoryBean.java:551)

at org.springframework.dao.support.ChainedPersistenceExceptionTranslator.translateExceptionIfPossible(ChainedPersistenceExceptionTranslator.java:61)

at org.springframework.dao.support.DataAccessUtils.translateIfNecessary(DataAccessUtils.java:242)

at org.springframework.dao.support.PersistenceExceptionTranslationInterceptor.invoke(PersistenceExceptionTranslationInterceptor.java:152)

at org.springframework.aop.framework.ReflectiveMethodInvocation.proceed(ReflectiveMethodInvocation.java:186)

at org.springframework.aop.framework.CglibAopProxy$CglibMethodInvocation.proceed(CglibAopProxy.java:750)

at org.springframework.aop.framework.CglibAopProxy$DynamicAdvisedInterceptor.intercept(CglibAopProxy.java:692)

at toyproject.toyshop.repository.OrderRepository$$EnhancerBySpringCGLIB$$4f1e69f7.save(<generated>)

at toyproject.toyshop.service.OrderService.order(OrderService.java:50)

at toyproject.toyshop.service.OrderService$$FastClassBySpringCGLIB$$20f2b7ad.invoke(<generated>)

at org.springframework.cglib.proxy.MethodProxy.invoke(MethodProxy.java:218)

at org.springframework.aop.framework.CglibAopProxy$CglibMethodInvocation.invokeJoinpoint(CglibAopProxy.java:779)

at org.springframework.aop.framework.ReflectiveMethodInvocation.proceed(ReflectiveMethodInvocation.java:163)

at org.springframework.aop.framework.CglibAopProxy$CglibMethodInvocation.proceed(CglibAopProxy.java:750)

at org.springframework.transaction.interceptor.TransactionInterceptor$1.proceedWithInvocation(TransactionInterceptor.java:123)

at org.springframework.transaction.interceptor.TransactionAspectSupport.invokeWithinTransaction(TransactionAspectSupport.java:388)

at org.springframework.transaction.interceptor.TransactionInterceptor.invoke(TransactionInterceptor.java:119)

at org.springframework.aop.framework.ReflectiveMethodInvocation.proceed(ReflectiveMethodInvocation.java:186)

at org.springframework.aop.framework.CglibAopProxy$CglibMethodInvocation.proceed(CglibAopProxy.java:750)

at org.springframework.aop.framework.CglibAopProxy$DynamicAdvisedInterceptor.intercept(CglibAopProxy.java:692)

at toyproject.toyshop.service.OrderService$$EnhancerBySpringCGLIB$$bd14ca3b.order(<generated>)

at toyproject.toyshop.service.OrderServiceTest.상품주문(OrderServiceTest.java:49)

at java.base/jdk.internal.reflect.NativeMethodAccessorImpl.invoke0(Native Method)

at java.base/jdk.internal.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:62)

at java.base/jdk.internal.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)

at java.base/java.lang.reflect.Method.invoke(Method.java:566)

at org.junit.platform.commons.util.ReflectionUtils.invokeMethod(ReflectionUtils.java:688)

at org.junit.jupiter.engine.execution.MethodInvocation.proceed(MethodInvocation.java:60)

at org.junit.jupiter.engine.execution.InvocationInterceptorChain$ValidatingInvocation.proceed(InvocationInterceptorChain.java:131)

at org.junit.jupiter.engine.extension.TimeoutExtension.intercept(TimeoutExtension.java:149)

at org.junit.jupiter.engine.extension.TimeoutExtension.interceptTestableMethod(TimeoutExtension.java:140)

at org.junit.jupiter.engine.extension.TimeoutExtension.interceptTestMethod(TimeoutExtension.java:84)

at org.junit.jupiter.engine.execution.ExecutableInvoker$ReflectiveInterceptorCall.lambda$ofVoidMethod$0(ExecutableInvoker.java:115)

at org.junit.jupiter.engine.execution.ExecutableInvoker.lambda$invoke$0(ExecutableInvoker.java:105)

at org.junit.jupiter.engine.execution.InvocationInterceptorChain$InterceptedInvocation.proceed(InvocationInterceptorChain.java:106)

at org.junit.jupiter.engine.execution.InvocationInterceptorChain.proceed(InvocationInterceptorChain.java:64)

at org.junit.jupiter.engine.execution.InvocationInterceptorChain.chainAndInvoke(InvocationInterceptorChain.java:45)

at org.junit.jupiter.engine.execution.InvocationInterceptorChain.invoke(InvocationInterceptorChain.java:37)

at org.junit.jupiter.engine.execution.ExecutableInvoker.invoke(ExecutableInvoker.java:104)

at org.junit.jupiter.engine.execution.ExecutableInvoker.invoke(ExecutableInvoker.java:98)

at org.junit.jupiter.engine.descriptor.TestMethodTestDescriptor.lambda$invokeTestMethod$6(TestMethodTestDescriptor.java:210)