Spring

엔티티 관리자를 사용하여 다 대다 관계에서 레코드를 추가하는 방법

기록만이살길 2021. 3. 15. 05:08
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엔티티 관리자를 사용하여 다 대다 관계에서 레코드를 추가하는 방법

1. 질문(문제점):

2 개 항목 제품 및 주문이 있습니다. product_order 링크 테이블에 의해 연결됩니다. 이 테이블에 레코드를 추가 할 수 있어야하는데 어떻게해야합니까?

여기에 이미지 설명 입력

내 엔터티는 내 프로그램에서 다음과 같이 표시됩니다.

@EqualsAndHashCode(callSuper = false)
@Entity
@Table(name = "orders")
@Getter
@Setter
@NoArgsConstructor
@AllArgsConstructor
public class Order {

    @Id
    @GeneratedValue(strategy = GenerationType.IDENTITY)
    private long id;

    @ManyToOne(fetch = FetchType.EAGER, optional = false)
    @JoinColumn(name = "user_id")
    private User user;

    @ManyToOne(fetch = FetchType.EAGER, optional = false)
    @JoinColumn(name = "address_id")
    private Address address;

    @Enumerated(EnumType.STRING)
    @Column(name = "delivery_type")
    private Delivery delivery;

    @Enumerated(EnumType.STRING)
    @Column(name = "order_status")
    private OrderStatus orderStatus;

    @Enumerated(EnumType.STRING)
    @Column(name = "payment_status")
    private PaymentStatus paymentStatus;

    @Enumerated(EnumType.STRING)
    @Column(name = "payment_type")
    private PaymentType paymentType;

    @ManyToMany(mappedBy = "orderSet", fetch = FetchType.LAZY, cascade = {CascadeType.PERSIST, CascadeType.MERGE})
    private Set<Product> productSet;
}

@EqualsAndHashCode(callSuper = false)
@Entity
@Table(name = "products")
@Getter
@Setter
@NoArgsConstructor
@AllArgsConstructor
public class Product {

    @Id
    @GeneratedValue(strategy = GenerationType.IDENTITY)
    private long id;

    @Column(name = "quantity")
    private int quantity;

    @Column(name = "price")
    private int price;

    @Column(name = "model")
    private String model;

    @Column(name = "is_active")
    private boolean active;

    @Column(name = "picture_url")
    private String url;

    @ManyToOne(fetch = FetchType.EAGER, optional = false)
    @JoinColumn(name = "category_id")
    private Category category;

    @ManyToOne(fetch = FetchType.EAGER, optional = false)
    @JoinColumn(name = "brand_id")
    private Brand brand;

    @ManyToOne(fetch = FetchType.EAGER, optional = false)
    @JoinColumn(name = "season_id")
    private Season season;

    @ManyToOne(fetch = FetchType.EAGER, optional = false)
    @JoinColumn(name = "color_id")
    private Color color;

    @ManyToOne(fetch = FetchType.EAGER, optional = false)
    @JoinColumn(name = "material_id")
    private Material material;

    @ManyToOne(fetch = FetchType.EAGER, optional = false)
    @JoinColumn(name = "size_id")
    private Size size;

    @ManyToMany(fetch = FetchType.LAZY, cascade = {CascadeType.PERSIST})
    @JoinTable(
            name = "product_order",
            joinColumns = {
                    @JoinColumn(name = "product_id", referencedColumnName = "id")
            },
            inverseJoinColumns = {
                    @JoinColumn(name = "order_id", referencedColumnName = "id")
            }
    )
    private Set<Order> orderSet;
}

다음 방법을 시도했습니다.

@Override
    @Transactional
    public void addProductToOrder(long productID, long orderId) {
        Product product = productRepository.findById(productID);
        product.setOrderSet(Collections.singleton(orderRepository.findById(orderId)));
        productRepository.updateProduct(product);
    }

productRepository에서 :

@Override
    public void updateProduct(Product product) {
        entityManager.merge(product);
    }

하지만이 예외가 발생합니다.

org.springframework.web.util.NestedServletException: Request processing failed; nested exception is java.lang.UnsupportedOperationException
    org.springframework.web.servlet.FrameworkServlet.processRequest(FrameworkServlet.java:1014)
    org.springframework.web.servlet.FrameworkServlet.doGet(FrameworkServlet.java:898)
    javax.servlet.http.HttpServlet.service(HttpServlet.java:626)
    org.springframework.web.servlet.FrameworkServlet.service(FrameworkServlet.java:883)
    javax.servlet.http.HttpServlet.service(HttpServlet.java:733)
    org.apache.tomcat.websocket.server.WsFilter.doFilter(WsFilter.java:53)
    org.springframework.security.web.FilterChainProxy$VirtualFilterChain.doFilter(FilterChainProxy.java:320)
    org.springframework.security.web.access.intercept.FilterSecurityInterceptor.invoke(FilterSecurityInterceptor.java:126)
    org.springframework.security.web.access.intercept.FilterSecurityInterceptor.doFilter(FilterSecurityInterceptor.java:90)
    org.springframework.security.web.FilterChainProxy$VirtualFilterChain.doFilter(FilterChainProxy.java:334)
    org.springframework.security.web.access.ExceptionTranslationFilter.doFilter(ExceptionTranslationFilter.java:118)
    org.springframework.security.web.FilterChainProxy$VirtualFilterChain.doFilter(FilterChainProxy.java:334)
    org.springframework.security.web.session.SessionManagementFilter.doFilter(SessionManagementFilter.java:137)
    org.springframework.security.web.FilterChainProxy$VirtualFilterChain.doFilter(FilterChainProxy.java:334)
    org.springframework.security.web.authentication.AnonymousAuthenticationFilter.doFilter(AnonymousAuthenticationFilter.java:111)
    org.springframework.security.web.FilterChainProxy$VirtualFilterChain.doFilter(FilterChainProxy.java:334)
    org.springframework.security.web.servletapi.SecurityContextHolderAwareRequestFilter.doFilter(SecurityContextHolderAwareRequestFilter.java:158)
    org.springframework.security.web.FilterChainProxy$VirtualFilterChain.doFilter(FilterChainProxy.java:334)
    org.springframework.security.web.savedrequest.RequestCacheAwareFilter.doFilter(RequestCacheAwareFilter.java:63)
    org.springframework.security.web.FilterChainProxy$VirtualFilterChain.doFilter(FilterChainProxy.java:334)
    org.springframework.security.web.authentication.AbstractAuthenticationProcessingFilter.doFilter(AbstractAuthenticationProcessingFilter.java:200)
    org.springframework.security.web.FilterChainProxy$VirtualFilterChain.doFilter(FilterChainProxy.java:334)
    org.springframework.security.web.authentication.logout.LogoutFilter.doFilter(LogoutFilter.java:116)
    org.springframework.security.web.FilterChainProxy$VirtualFilterChain.doFilter(FilterChainProxy.java:334)
    org.springframework.security.web.csrf.CsrfFilter.doFilterInternal(CsrfFilter.java:117)
    org.springframework.web.filter.OncePerRequestFilter.doFilter(OncePerRequestFilter.java:119)
    org.springframework.security.web.FilterChainProxy$VirtualFilterChain.doFilter(FilterChainProxy.java:334)
    org.springframework.security.web.header.HeaderWriterFilter.doHeadersAfter(HeaderWriterFilter.java:92)
    org.springframework.security.web.header.HeaderWriterFilter.doFilterInternal(HeaderWriterFilter.java:77)
    org.springframework.web.filter.OncePerRequestFilter.doFilter(OncePerRequestFilter.java:119)
    org.springframework.security.web.FilterChainProxy$VirtualFilterChain.doFilter(FilterChainProxy.java:334)
    org.springframework.security.web.context.SecurityContextPersistenceFilter.doFilter(SecurityContextPersistenceFilter.java:105)
    org.springframework.security.web.FilterChainProxy$VirtualFilterChain.doFilter(FilterChainProxy.java:334)
    org.springframework.security.web.context.request.async.WebAsyncManagerIntegrationFilter.doFilterInternal(WebAsyncManagerIntegrationFilter.java:56)
    org.springframework.web.filter.OncePerRequestFilter.doFilter(OncePerRequestFilter.java:119)
    org.springframework.security.web.FilterChainProxy$VirtualFilterChain.doFilter(FilterChainProxy.java:334)
    org.springframework.security.web.FilterChainProxy.doFilterInternal(FilterChainProxy.java:215)
    org.springframework.security.web.FilterChainProxy.doFilter(FilterChainProxy.java:178)
    org.springframework.web.filter.DelegatingFilterProxy.invokeDelegate(DelegatingFilterProxy.java:358)
    org.springframework.web.filter.DelegatingFilterProxy.doFilter(DelegatingFilterProxy.java:271)
Root Cause

java.lang.UnsupportedOperationException
    java.base/java.util.Collections$1.remove(Collections.java:4787)
    java.base/java.util.AbstractCollection.clear(AbstractCollection.java:431)
    org.hibernate.type.CollectionType.replaceElements(CollectionType.java:581)
    org.hibernate.type.CollectionType.replace(CollectionType.java:757)
    org.hibernate.type.TypeHelper.replace(TypeHelper.java:167)
    org.hibernate.event.internal.DefaultMergeEventListener.copyValues(DefaultMergeEventListener.java:451)
    org.hibernate.event.internal.DefaultMergeEventListener.entityIsPersistent(DefaultMergeEventListener.java:205)
    org.hibernate.event.internal.DefaultMergeEventListener.onMerge(DefaultMergeEventListener.java:178)
    org.hibernate.event.internal.DefaultMergeEventListener.onMerge(DefaultMergeEventListener.java:70)
    org.hibernate.event.service.internal.EventListenerGroupImpl.fireEventOnEachListener(EventListenerGroupImpl.java:108)
    org.hibernate.internal.SessionImpl.fireMerge(SessionImpl.java:775)
    org.hibernate.internal.SessionImpl.merge(SessionImpl.java:762)
    java.base/jdk.internal.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
    java.base/jdk.internal.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:64)
    java.base/jdk.internal.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
    java.base/java.lang.reflect.Method.invoke(Method.java:564)
    org.springframework.orm.jpa.SharedEntityManagerCreator$SharedEntityManagerInvocationHandler.invoke(SharedEntityManagerCreator.java:314)
    com.sun.proxy.$Proxy59.merge(Unknown Source)
    com.javaschool.repository.impl.product.ProductRepositoryImpl.updateProduct(ProductRepositoryImpl.java:78)
    java.base/jdk.internal.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
    java.base/jdk.internal.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:64)
    java.base/jdk.internal.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
    java.base/java.lang.reflect.Method.invoke(Method.java:564)
    org.springframework.aop.support.AopUtils.invokeJoinpointUsingReflection(AopUtils.java:344)
    org.springframework.aop.framework.ReflectiveMethodInvocation.invokeJoinpoint(ReflectiveMethodInvocation.java:198)
    org.springframework.aop.framework.ReflectiveMethodInvocation.proceed(ReflectiveMethodInvocation.java:163)
    org.springframework.dao.support.PersistenceExceptionTranslationInterceptor.invoke(PersistenceExceptionTranslationInterceptor.java:139)
    org.springframework.aop.framework.ReflectiveMethodInvocation.proceed(ReflectiveMethodInvocation.java:186)
    org.springframework.aop.framework.JdkDynamicAopProxy.invoke(JdkDynamicAopProxy.java:212)
    com.sun.proxy.$Proxy72.updateProduct(Unknown Source)
    com.javaschool.service.impl.product.ProductServiceImpl.addProductToOrder(ProductServiceImpl.java:93)
    java.base/jdk.internal.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
    java.base/jdk.internal.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:64)
    java.base/jdk.internal.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
    java.base/java.lang.reflect.Method.invoke(Method.java:564)
    org.springframework.aop.support.AopUtils.invokeJoinpointUsingReflection(AopUtils.java:344)
    org.springframework.aop.framework.ReflectiveMethodInvocation.invokeJoinpoint(ReflectiveMethodInvocation.java:198)
    org.springframework.aop.framework.ReflectiveMethodInvocation.proceed(ReflectiveMethodInvocation.java:163)
    org.springframework.transaction.interceptor.TransactionAspectSupport.invokeWithinTransaction(TransactionAspectSupport.java:366)
    org.springframework.transaction.interceptor.TransactionInterceptor.invoke(TransactionInterceptor.java:99)
    org.springframework.aop.framework.ReflectiveMethodInvocation.proceed(ReflectiveMethodInvocation.java:186)
    org.springframework.aop.framework.JdkDynamicAopProxy.invoke(JdkDynamicAopProxy.java:212)
    com.sun.proxy.$Proxy80.addProductToOrder(Unknown Source)
    com.javaschool.controller.ProductController.addProduct(ProductController.java:217)
    java.base/jdk.internal.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
    java.base/jdk.internal.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:64)
    java.base/jdk.internal.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
    java.base/java.lang.reflect.Method.invoke(Method.java:564)
    org.springframework.web.method.support.InvocableHandlerMethod.doInvoke(InvocableHandlerMethod.java:190)
    org.springframework.web.method.support.InvocableHandlerMethod.invokeForRequest(InvocableHandlerMethod.java:138)
    org.springframework.web.servlet.mvc.method.annotation.ServletInvocableHandlerMethod.invokeAndHandle(ServletInvocableHandlerMethod.java:106)
    org.springframework.web.servlet.mvc.method.annotation.RequestMappingHandlerAdapter.invokeHandlerMethod(RequestMappingHandlerAdapter.java:879)
    org.springframework.web.servlet.mvc.method.annotation.RequestMappingHandlerAdapter.handleInternal(RequestMappingHandlerAdapter.java:793)
    org.springframework.web.servlet.mvc.method.AbstractHandlerMethodAdapter.handle(AbstractHandlerMethodAdapter.java:87)
    org.springframework.web.servlet.DispatcherServlet.doDispatch(DispatcherServlet.java:1040)
    org.springframework.web.servlet.DispatcherServlet.doService(DispatcherServlet.java:943)
    org.springframework.web.servlet.FrameworkServlet.processRequest(FrameworkServlet.java:1006)
    org.springframework.web.servlet.FrameworkServlet.doGet(FrameworkServlet.java:898)
    javax.servlet.http.HttpServlet.service(HttpServlet.java:626)
    org.springframework.web.servlet.FrameworkServlet.service(FrameworkServlet.java:883)
    javax.servlet.http.HttpServlet.service(HttpServlet.java:733)
    org.apache.tomcat.websocket.server.WsFilter.doFilter(WsFilter.java:53)
    org.springframework.security.web.FilterChainProxy$VirtualFilterChain.doFilter(FilterChainProxy.java:320)
    org.springframework.security.web.access.intercept.FilterSecurityInterceptor.invoke(FilterSecurityInterceptor.java:126)
    org.springframework.security.web.access.intercept.FilterSecurityInterceptor.doFilter(FilterSecurityInterceptor.java:90)
    org.springframework.security.web.FilterChainProxy$VirtualFilterChain.doFilter(FilterChainProxy.java:334)
    org.springframework.security.web.access.ExceptionTranslationFilter.doFilter(ExceptionTranslationFilter.java:118)
    org.springframework.security.web.FilterChainProxy$VirtualFilterChain.doFilter(FilterChainProxy.java:334)
    org.springframework.security.web.session.SessionManagementFilter.doFilter(SessionManagementFilter.java:137)
    org.springframework.security.web.FilterChainProxy$VirtualFilterChain.doFilter(FilterChainProxy.java:334)
    org.springframework.security.web.authentication.AnonymousAuthenticationFilter.doFilter(AnonymousAuthenticationFilter.java:111)
    org.springframework.security.web.FilterChainProxy$VirtualFilterChain.doFilter(FilterChainProxy.java:334)
    org.springframework.security.web.servletapi.SecurityContextHolderAwareRequestFilter.doFilter(SecurityContextHolderAwareRequestFilter.java:158)
    org.springframework.security.web.FilterChainProxy$VirtualFilterChain.doFilter(FilterChainProxy.java:334)
    org.springframework.security.web.savedrequest.RequestCacheAwareFilter.doFilter(RequestCacheAwareFilter.java:63)
    org.springframework.security.web.FilterChainProxy$VirtualFilterChain.doFilter(FilterChainProxy.java:334)
    org.springframework.security.web.authentication.AbstractAuthenticationProcessingFilter.doFilter(AbstractAuthenticationProcessingFilter.java:200)
    org.springframework.security.web.FilterChainProxy$VirtualFilterChain.doFilter(FilterChainProxy.java:334)
    org.springframework.security.web.authentication.logout.LogoutFilter.doFilter(LogoutFilter.java:116)
    org.springframework.security.web.FilterChainProxy$VirtualFilterChain.doFilter(FilterChainProxy.java:334)
    org.springframework.security.web.csrf.CsrfFilter.doFilterInternal(CsrfFilter.java:117)
    org.springframework.web.filter.OncePerRequestFilter.doFilter(OncePerRequestFilter.java:119)
    org.springframework.security.web.FilterChainProxy$VirtualFilterChain.doFilter(FilterChainProxy.java:334)
    org.springframework.security.web.header.HeaderWriterFilter.doHeadersAfter(HeaderWriterFilter.java:92)
    org.springframework.security.web.header.HeaderWriterFilter.doFilterInternal(HeaderWriterFilter.java:77)
    org.springframework.web.filter.OncePerRequestFilter.doFilter(OncePerRequestFilter.java:119)
    org.springframework.security.web.FilterChainProxy$VirtualFilterChain.doFilter(FilterChainProxy.java:334)
    org.springframework.security.web.context.SecurityContextPersistenceFilter.doFilter(SecurityContextPersistenceFilter.java:105)
    org.springframework.security.web.FilterChainProxy$VirtualFilterChain.doFilter(FilterChainProxy.java:334)
    org.springframework.security.web.context.request.async.WebAsyncManagerIntegrationFilter.doFilterInternal(WebAsyncManagerIntegrationFilter.java:56)
    org.springframework.web.filter.OncePerRequestFilter.doFilter(OncePerRequestFilter.java:119)
    org.springframework.security.web.FilterChainProxy$VirtualFilterChain.doFilter(FilterChainProxy.java:334)
    org.springframework.security.web.FilterChainProxy.doFilterInternal(FilterChainProxy.java:215)
    org.springframework.security.web.FilterChainProxy.doFilter(FilterChainProxy.java:178)
    org.springframework.web.filter.DelegatingFilterProxy.invokeDelegate(DelegatingFilterProxy.java:358)
    org.springframework.web.filter.DelegatingFilterProxy.doFilter(DelegatingFilterProxy.java:271)
Note The full stack trace of the root cause is available in the server logs.

제 생각에는 모든 것이 올바르게 수행되었지만 어떤 이유로 작동하지 않습니다.

2. 해결방안:

내 엔티티 클래스에서이 어노테이션을 삭제해야합니다.

@EqualsAndHashCode(callSuper = false)

이제 내 방법은 다음과 같습니다.

@Override
    @Transactional
    public void addProductToOrder(long productID, long orderId) {
        Product product = productRepository.findById(productID);
        Set<Order> orders = new HashSet<>();
        orders.add(orderRepository.findById(orderId));
        product.setOrderSet(orders);
        productRepository.updateProduct(product);
    }
65692911
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