主頁 >  其他 > org.hibernate.HibernateException：找到了多行具有給定識別符號的行：40，對于類：com.ptoject.demo.entities.User

org.hibernate.HibernateException：找到了多行具有給定識別符號的行：40，對于類：com.ptoject.demo.entities.User

2022-02-18 04:44:13 其他

我正在 Spring Boot 中開發電子商務后端。每次我Order為同一個創建兩個以上時User，我都會收到以下錯誤：org.hibernate.HibernateException: More than one row with the given identifier was found: 40, for class: com.ptoject.demo.entities.User. 要創建Order，我首先創建 aPayment然后創建由Order生成的Payment，所以問題也可能出在創建中Payment。

Order物體：

@Getter
@Setter
@EqualsAndHashCode
@ToString
@Entity

@Table(name = "order", schema = "purchase")
public class Order {

    @Id
    @GeneratedValue(strategy = GenerationType.IDENTITY)
    @Column(name = "id", nullable = false)
    private int id;

    @Basic
    @CreationTimestamp
    @Temporal(TemporalType.TIMESTAMP)
    @Column(name = "order_time")
    private Date orderTime;

    @OneToMany(mappedBy = "order", cascade = CascadeType.MERGE)
    private List<ProductInOrder> productsInOrder;

    @ManyToOne
    @JoinColumn(name = "buyer")
    private User buyer;

    @OneToOne
    @JoinColumn(name = "payment_id")
    @JsonIgnore
    private Payment payment;

    @OneToOne
    @JoinColumn(name = "cart_id")
    private Cart cart;
}

User物體：

@Getter
@Setter
@EqualsAndHashCode
@ToString
@Entity
@Table(name="user", schema = "purchase")

public class User {

    @Id
    @GeneratedValue(strategy = GenerationType.IDENTITY)
    @Column(name = "id", nullable = false)
    private int id;


    @Basic
    @Column(name = "code", nullable = true, length = 70)
    private String code;

    @Basic
    @Column(name = "first_name", nullable = true, length = 50)
    private String firstName;

    @Basic
    @Column(name = "last_name", nullable = true, length = 50)
    private String lastName;

    @Basic
    @Column(name = "telephone", nullable = true, length = 20)
    private String telephone;

    @Basic
    @Column(name = "email", nullable = true, length = 90)
    private String email;

    @Basic
    @Column(name = "password", nullable = true, length = 90)
    private String password;

    @Basic
    @Column(name = "address", nullable = true, length = 150)
    private String address;


    @OneToMany(mappedBy = "buyer", cascade = CascadeType.MERGE)
    @JsonIgnore
    private List<Order> orders;

    @OneToMany(mappedBy = "user", cascade = CascadeType.MERGE)
    @JsonIgnore
    private List<QuestionForUser> questionsForUser;

    @OneToOne(mappedBy = "buyer")
    @JsonIgnore
    private Cart cart;

    @OneToMany(mappedBy = "user", cascade = CascadeType.MERGE)
    @JsonIgnore
    private List<Answer> answer;

}

Payment物體：

@Getter
@Setter
@EqualsAndHashCode
@ToString
@Entity
@Table(name = "payment", schema = "purchase")
public class Payment {

    @Id
    @GeneratedValue(strategy = GenerationType.IDENTITY)
    @Column(name = "id", nullable = false)
    private int id;

    @Basic
    @Column(name = "owner_name", nullable = true, length = 70)
    private String ownerName;

    @Basic
    @Column(name = "owner_last_name", nullable = true, length = 70)
    private String ownerLastName;

    @Basic
    @Column(name = "card_number", nullable = true, length = 16)
    //il numero di una carta PayPal è di 16 cifre
    private String cardNumber;

    @Basic
    @Temporal(TemporalType.DATE)

    @Column(name = "expiration", nullable = true)
    private Date expiration;

    @Basic
    @Column(name = "cvv", nullable = true, length = 3)
    private String cvv;

    @Basic
    @Column(name = "total", nullable = true)
    private float total;

    @OneToOne(mappedBy = "payment")
    private Order order;
}

OrderService：

@Service
public class OrderService {
    @Autowired
    private OrderRepository orderRepository;

    @Autowired
    private ProductInOrderRepository productInOrderRepository;

    @Autowired
    private UserRepository userRepository;

    @Autowired
    private CartRepository cartRepository;

    @Autowired
    private PaymentRepository paymentRepository;

    @Autowired
    private EntityManager entityManager;

@Transactional(readOnly = false)
    public Order createOrder (int paymentId, int userId, int cartId) {

        User user = userRepository.findById(userId);
        Payment payment = paymentRepository.findById(paymentId);
        Cart c = cartRepository.findById(cartId);
        List<ProductInOrder> productsInOrder=new LinkedList<>();
        List<ProductInCart> productsInCart=c.getProductsInCart();
        Order o = new Order();
        o.setPayment(payment);
        o.setCart(c);
        o.setBuyer(user);
        for(ProductInCart productInCart: productsInCart){
            ProductInOrder productInOrder = new ProductInOrder();
            productInOrder.setProduct(productInCart.getProduct());
            productInOrder.setOrder(o);
            productInOrder.setQuantity(productInCart.getQuantity());
            productInOrderRepository.save(productInOrder);
            productsInOrder.add(productInOrder);
        }
        o.setProductsInOrder(productsInOrder);
        payment.setOrder(o);
        Order justAdded = orderRepository.save(o);
        entityManager.refresh(justAdded);
        entityManager.refresh(o);
        return justAdded;

    }

OrderController：

@RestController
@RequestMapping("/orders")
public class OrderController {

    @Autowired
    private OrderService orderService;

    @PostMapping("/create")
    @ResponseStatus(code = HttpStatus.OK)
    public ResponseEntity<Order> createOrder (@RequestParam(required = false) int paymentId,
                                                    @RequestParam(required = false) int buyerId,
                                                    @RequestParam(required = false) int cartId){

            return new ResponseEntity<>(orderService.createOrder(paymentId, buyerId, cartId), HttpStatus.OK);

    }

PaymentService：

@Service
public class PaymentService {

    @Autowired
    private PaymentRepository paymentRepository;

    @Autowired
    private UserRepository userRepository;

    @Autowired
    private OrderRepository orderRepository;

    @Autowired
    private EntityManager entityManager;

    @Transactional(readOnly = false, propagation = Propagation.REQUIRED)
    public Payment addPayment(Payment p) throws PaymentAlreadyExistsException, IncorrectCardNumberException, IncorrectCvvException{//
        if(paymentRepository.existsByCardNumber(p.getCardNumber())){
            throw new PaymentAlreadyExistsException();
        }
       
        if(p.getCardNumber().length()!=16){
            throw new IncorrectCardNumberException();
        }
        if(p.getCvv().length()!=3)
        {
            throw new IncorrectCvvException();
        }
        return paymentRepository.save(p);
    }

PaymentController：

@RestController
@RequestMapping("/payments")
public class PaymentController {
    @Autowired
    private PaymentService paymentService;

    @PostMapping("/createPayment")//funziona
    public ResponseEntity<Payment> create(@RequestBody @Valid Payment payment){
        System.out.print("Sono in paymentController.");
        try {
            Payment added=paymentService.addPayment(payment);
            return new ResponseEntity<>(added, HttpStatus.OK);
        } catch (PaymentAlreadyExistsException e) {
            return new ResponseEntity(new ResponseMessage("Payment already exists!"), HttpStatus.BAD_REQUEST);
        } catch (IncorrectCardNumberException e) {
            return new ResponseEntity(new ResponseMessage("Incorrect card number!"), HttpStatus.BAD_REQUEST);
        } catch (IncorrectCvvException e) {
            return new ResponseEntity(new ResponseMessage("Incorrect CVV"), HttpStatus.BAD_REQUEST);
        }
}

例外堆疊跟蹤：

org.hibernate.HibernateException: More than one row with the given identifier was found: 44, for class: com.ptoject.demo.entities.User at org.hibernate.loader.entity.plan.AbstractLoadPlanBasedEntityLoader.extractEntityResult(AbstractLoadPlanBasedEntityLoader.java:348) ~[hibernate-core-5.6.3.Final.jar:5.6.3.Final] at org.hibernate.loader.entity.plan.AbstractLoadPlanBasedEntityLoader.load(AbstractLoadPlanBasedEntityLoader.java:292) ~[hibernate-core-5.6.3.Final.jar:5.6.3.Final] at org.hibernate.persister.entity.AbstractEntityPersister.doLoad(AbstractEntityPersister.java:4521) ~[hibernate-core-5.6.3.Final.jar:5.6.3.Final] at org.hibernate.persister.entity.AbstractEntityPersister.load(AbstractEntityPersister.java:4511) ~[hibernate-core-5.6.3.Final.jar:5.6.3.Final] at org.hibernate.event.internal.DefaultLoadEventListener.loadFromDatasource(DefaultLoadEventListener.java:571) ~[hibernate-core-5.6.3.Final.jar:5.6.3.Final] at org.hibernate.event.internal.DefaultLoadEventListener.doLoad(DefaultLoadEventListener.java:539) ~[hibernate-core-5.6.3.Final.jar:5.6.3.Final] at org.hibernate.event.internal.DefaultLoadEventListener.load(DefaultLoadEventListener.java:208) ~[hibernate-core-5.6.3.Final.jar:5.6.3.Final] at org.hibernate.event.internal.DefaultLoadEventListener.proxyOrLoad(DefaultLoadEventListener.java:327) ~[hibernate-core-5.6.3.Final.jar:5.6.3.Final] at org.hibernate.event.internal.DefaultLoadEventListener.doOnLoad(DefaultLoadEventListener.java:108) ~[hibernate-core-5.6.3.Final.jar:5.6.3.Final] at org.hibernate.event.internal.DefaultLoadEventListener.onLoad(DefaultLoadEventListener.java:74) ~[hibernate-core-5.6.3.Final.jar:5.6.3.Final] at org.hibernate.event.service.internal.EventListenerGroupImpl.fireEventOnEachListener(EventListenerGroupImpl.java:118) ~[hibernate-core-5.6.3.Final.jar:5.6.3.Final] at org.hibernate.internal.SessionImpl.fireLoadNoChecks(SessionImpl.java:1226) ~[hibernate-core-5.6.3.Final.jar:5.6.3.Final] at org.hibernate.internal.SessionImpl.fireLoad(SessionImpl.java:1215) ~[hibernate-core-5.6.3.Final.jar:5.6.3.Final] at org.hibernate.internal.SessionImpl.access$2100(SessionImpl.java:201) ~[hibernate-core-5.6.3.Final.jar:5.6.3.Final] at org.hibernate.internal.SessionImpl$IdentifierLoadAccessImpl.doLoad(SessionImpl.java:2830) ~[hibernate-core-5.6.3.Final.jar:5.6.3.Final] at org.hibernate.internal.SessionImpl$IdentifierLoadAccessImpl.lambda$load$1(SessionImpl.java:2807) ~[hibernate-core-5.6.3.Final.jar:5.6.3.Final] at org.hibernate.internal.SessionImpl$IdentifierLoadAccessImpl.perform(SessionImpl.java:2763) ~[hibernate-core-5.6.3.Final.jar:5.6.3.Final] at org.hibernate.internal.SessionImpl$IdentifierLoadAccessImpl.load(SessionImpl.java:2807) ~[hibernate-core-5.6.3.Final.jar:5.6.3.Final] at org.hibernate.internal.SessionImpl.find(SessionImpl.java:3395) ~[hibernate-core-5.6.3.Final.jar:5.6.3.Final] at org.hibernate.internal.SessionImpl.find(SessionImpl.java:3362) ~[hibernate-core-5.6.3.Final.jar:5.6.3.Final] at jdk.internal.reflect.GeneratedMethodAccessor116.invoke(Unknown Source) ~[na:na] at java.base/jdk.internal.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43) ~[na:na] at java.base/java.lang.reflect.Method.invoke(Method.java:568) ~[na:na] at org.springframework.orm.jpa.ExtendedEntityManagerCreator$ExtendedEntityManagerInvocationHandler.invoke(ExtendedEntityManagerCreator.java:362) ~[spring-orm-5.3.14.jar:5.3.14] at jdk.proxy2/jdk.proxy2.$Proxy108.find(Unknown Source) ~[na:na] at jdk.internal.reflect.GeneratedMethodAccessor116.invoke(Unknown Source) ~[na:na] at java.base/jdk.internal.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43) ~[na:na] at java.base/java.lang.reflect.Method.invoke(Method.java:568) ~[na:na] at org.springframework.orm.jpa.SharedEntityManagerCreator$SharedEntityManagerInvocationHandler.invoke(SharedEntityManagerCreator.java:311) ~[spring-orm-5.3.14.jar:5.3.14] at jdk.proxy2/jdk.proxy2.$Proxy108.find(Unknown Source) ~[na:na] at org.springframework.data.jpa.repository.support.SimpleJpaRepository.findById(SimpleJpaRepository.java:313) ~[spring-data-jpa-2.6.0.jar:2.6.0] at java.base/jdk.internal.reflect.NativeMethodAccessorImpl.invoke0(Native Method) ~[na:na] at java.base/jdk.internal.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:77) ~[na:na] at java.base/jdk.internal.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43) ~[na:na] at java.base/java.lang.reflect.Method.invoke(Method.java:568) ~[na:na] at org.springframework.data.repository.core.support.RepositoryMethodInvoker$RepositoryFragmentMethodInvoker.lambda$new$0(RepositoryMethodInvoker.java:289) ~[spring-data-commons-2.6.0.jar:2.6.0] at org.springframework.data.repository.core.support.RepositoryMethodInvoker.doInvoke(RepositoryMethodInvoker.java:137) ~[spring-data-commons-2.6.0.jar:2.6.0] at org.springframework.data.repository.core.support.RepositoryMethodInvoker.invoke(RepositoryMethodInvoker.java:121) ~[spring-data-commons-2.6.0.jar:2.6.0] at org.springframework.data.repository.core.support.RepositoryComposition$RepositoryFragments.invoke(RepositoryComposition.java:529) ~[spring-data-commons-2.6.0.jar:2.6.0] at org.springframework.data.repository.core.support.RepositoryComposition.invoke(RepositoryComposition.java:285) ~[spring-data-commons-2.6.0.jar:2.6.0] at org.springframework.data.repository.core.support.RepositoryFactorySupport$ImplementationMethodExecutionInterceptor.invoke(RepositoryFactorySupport.java:638) ~[spring-data-commons-2.6.0.jar:2.6.0] at org.springframework.aop.framework.ReflectiveMethodInvocation.proceed(ReflectiveMethodInvocation.java:186) ~[spring-aop-5.3.14.jar:5.3.14] at org.springframework.data.repository.core.support.QueryExecutorMethodInterceptor.doInvoke(QueryExecutorMethodInterceptor.java:163) ~[spring-data-commons-2.6.0.jar:2.6.0] at org.springframework.data.repository.core.support.QueryExecutorMethodInterceptor.invoke(QueryExecutorMethodInterceptor.java:138) ~[spring-data-commons-2.6.0.jar:2.6.0] at org.springframework.aop.framework.ReflectiveMethodInvocation.proceed(ReflectiveMethodInvocation.java:186) ~[spring-aop-5.3.14.jar:5.3.14] at org.springframework.data.projection.DefaultMethodInvokingMethodInterceptor.invoke(DefaultMethodInvokingMethodInterceptor.java:80) ~[spring-data-commons-2.6.0.jar:2.6.0] at org.springframework.aop.framework.ReflectiveMethodInvocation.proceed(ReflectiveMethodInvocation.java:186) ~[spring-aop-5.3.14.jar:5.3.14] at org.springframework.transaction.interceptor.TransactionInterceptor$1.proceedWithInvocation(TransactionInterceptor.java:123) ~[spring-tx-5.3.14.jar:5.3.14] at org.springframework.transaction.interceptor.TransactionAspectSupport.invokeWithinTransaction(TransactionAspectSupport.java:388) ~[spring-tx-5.3.14.jar:5.3.14] at org.springframework.transaction.interceptor.TransactionInterceptor.invoke(TransactionInterceptor.java:119) ~[spring-tx-5.3.14.jar:5.3.14] at org.springframework.aop.framework.ReflectiveMethodInvocation.proceed(ReflectiveMethodInvocation.java:186) ~[spring-aop-5.3.14.jar:5.3.14] at org.springframework.dao.support.PersistenceExceptionTranslationInterceptor.invoke(PersistenceExceptionTranslationInterceptor.java:137) ~[spring-tx-5.3.14.jar:5.3.14] at org.springframework.aop.framework.ReflectiveMethodInvocation.proceed(ReflectiveMethodInvocation.java:186) ~[spring-aop-5.3.14.jar:5.3.14] at org.springframework.data.jpa.repository.support.CrudMethodMetadataPostProcessor$CrudMethodMetadataPopulatingMethodInterceptor.invoke(CrudMethodMetadataPostProcessor.java:174) ~[spring-data-jpa-2.6.0.jar:2.6.0] at org.springframework.aop.framework.ReflectiveMethodInvocation.proceed(ReflectiveMethodInvocation.java:186) ~[spring-aop-5.3.14.jar:5.3.14] at org.springframework.aop.interceptor.ExposeInvocationInterceptor.invoke(ExposeInvocationInterceptor.java:97) ~[spring-aop-5.3.14.jar:5.3.14] at org.springframework.aop.framework.ReflectiveMethodInvocation.proceed(ReflectiveMethodInvocation.java:186) ~[spring-aop-5.3.14.jar:5.3.14] at org.springframework.aop.framework.JdkDynamicAopProxy.invoke(JdkDynamicAopProxy.java:215) ~[spring-aop-5.3.14.jar:5.3.14] at jdk.proxy2/jdk.proxy2.$Proxy120.findById(Unknown Source) ~[na:na] at com.ptoject.demo.services.CartService.clearCart(CartService.java:115) ~[classes/:na] at com.ptoject.demo.services.CartService$$FastClassBySpringCGLIB$$280368ec.invoke() ~[classes/:na] at org.springframework.cglib.proxy.MethodProxy.invoke(MethodProxy.java:218) ~[spring-core-5.3.14.jar:5.3.14] at org.springframework.aop.framework.CglibAopProxy$CglibMethodInvocation.invokeJoinpoint(CglibAopProxy.java:783) ~[spring-aop-5.3.14.jar:5.3.14] at org.springframework.aop.framework.ReflectiveMethodInvocation.proceed(ReflectiveMethodInvocation.java:163) ~[spring-aop-5.3.14.jar:5.3.14] at org.springframework.aop.framework.CglibAopProxy$CglibMethodInvocation.proceed(CglibAopProxy.java:753) ~[spring-aop-5.3.14.jar:5.3.14] at org.springframework.transaction.interceptor.TransactionInterceptor$1.proceedWithInvocation(TransactionInterceptor.java:123) ~[spring-tx-5.3.14.jar:5.3.14] at org.springframework.transaction.interceptor.TransactionAspectSupport.invokeWithinTransaction(TransactionAspectSupport.java:388) ~[spring-tx-5.3.14.jar:5.3.14] at org.springframework.transaction.interceptor.TransactionInterceptor.invoke(TransactionInterceptor.java:119) ~[spring-tx-5.3.14.jar:5.3.14] at org.springframework.aop.framework.ReflectiveMethodInvocation.proceed(ReflectiveMethodInvocation.java:186) ~[spring-aop-5.3.14.jar:5.3.14] at org.springframework.aop.framework.CglibAopProxy$CglibMethodInvocation.proceed(CglibAopProxy.java:753) ~[spring-aop-5.3.14.jar:5.3.14] at org.springframework.aop.framework.CglibAopProxy$DynamicAdvisedInterceptor.intercept(CglibAopProxy.java:698) ~[spring-aop-5.3.14.jar:5.3.14] at com.ptoject.demo.services.CartService$$EnhancerBySpringCGLIB$$ea3d0786.clearCart() ~[classes/:na] at com.ptoject.demo.controller.CartController.clearCart(CartController.java:69) ~[classes/:na] at java.base/jdk.internal.reflect.NativeMethodAccessorImpl.invoke0(Native Method) ~[na:na] at java.base/jdk.internal.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:77) ~[na:na] at java.base/jdk.internal.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43) ~[na:na] at java.base/java.lang.reflect.Method.invoke(Method.java:568) ~[na:na] at org.springframework.web.method.support.InvocableHandlerMethod.doInvoke(InvocableHandlerMethod.java:205) ~[spring-web-5.3.14.jar:5.3.14] at org.springframework.web.method.support.InvocableHandlerMethod.invokeForRequest(InvocableHandlerMethod.java:150) ~[spring-web-5.3.14.jar:5.3.14] at org.springframework.web.servlet.mvc.method.annotation.ServletInvocableHandlerMethod.invokeAndHandle(ServletInvocableHandlerMethod.java:117) ~[spring-webmvc-5.3.14.jar:5.3.14] at org.springframework.web.servlet.mvc.method.annotation.RequestMappingHandlerAdapter.invokeHandlerMethod(RequestMappingHandlerAdapter.java:895) ~[spring-webmvc-5.3.14.jar:5.3.14] at org.springframework.web.servlet.mvc.method.annotation.RequestMappingHandlerAdapter.handleInternal(RequestMappingHandlerAdapter.java:808) ~[spring-webmvc-5.3.14.jar:5.3.14] at org.springframework.web.servlet.mvc.method.AbstractHandlerMethodAdapter.handle(AbstractHandlerMethodAdapter.java:87) ~[spring-webmvc-5.3.14.jar:5.3.14] at org.springframework.web.servlet.DispatcherServlet.doDispatch(DispatcherServlet.java:1067) ~[spring-webmvc-5.3.14.jar:5.3.14] at org.springframework.web.servlet.DispatcherServlet.doService(DispatcherServlet.java:963) ~[spring-webmvc-5.3.14.jar:5.3.14] at org.springframework.web.servlet.FrameworkServlet.processRequest(FrameworkServlet.java:1006) ~[spring-webmvc-5.3.14.jar:5.3.14] at org.springframework.web.servlet.FrameworkServlet.doDelete(FrameworkServlet.java:931) ~[spring-webmvc-5.3.14.jar:5.3.14] at javax.servlet.http.HttpServlet.service(HttpServlet.java:671) ~[javaee-web-api-8.0.1.jar:na] at org.springframework.web.servlet.FrameworkServlet.service(FrameworkServlet.java:883) ~[spring-webmvc-5.3.14.jar:5.3.14] at javax.servlet.http.HttpServlet.service(HttpServlet.java:750) ~[javaee-web-api-8.0.1.jar:na] at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:227) ~[tomcat-embed-core-9.0.56.jar:9.0.56] at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:162) ~[tomcat-embed-core-9.0.56.jar:9.0.56] at org.apache.tomcat.websocket.server.WsFilter.doFilter(WsFilter.java:53) ~[tomcat-embed-websocket-9.0.56.jar:9.0.56] at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:189) ~[tomcat-embed-core-9.0.56.jar:9.0.56] at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:162) ~[tomcat-embed-core-9.0.56.jar:9.0.56] at org.springframework.web.filter.CorsFilter.doFilterInternal(CorsFilter.java:91) ~[spring-web-5.3.14.jar:5.3.14] at org.springframework.web.filter.OncePerRequestFilter.doFilter(OncePerRequestFilter.java:117) ~[spring-web-5.3.14.jar:5.3.14] at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:189) ~[tomcat-embed-core-9.0.56.jar:9.0.56] at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:162) ~[tomcat-embed-core-9.0.56.jar:9.0.56] at org.springframework.web.filter.RequestContextFilter.doFilterInternal(RequestContextFilter.java:100) ~[spring-web-5.3.14.jar:5.3.14] at org.springframework.web.filter.OncePerRequestFilter.doFilter(OncePerRequestFilter.java:117) ~[spring-web-5.3.14.jar:5.3.14] at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:189) ~[tomcat-embed-core-9.0.56.jar:9.0.56] at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:162) ~[tomcat-embed-core-9.0.56.jar:9.0.56] at org.springframework.web.filter.FormContentFilter.doFilterInternal(FormContentFilter.java:93) ~[spring-web-5.3.14.jar:5.3.14] at org.springframework.web.filter.OncePerRequestFilter.doFilter(OncePerRequestFilter.java:117) ~[spring-web-5.3.14.jar:5.3.14] at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:189) ~[tomcat-embed-core-9.0.56.jar:9.0.56] at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:162) ~[tomcat-embed-core-9.0.56.jar:9.0.56] at org.springframework.web.filter.CharacterEncodingFilter.doFilterInternal(CharacterEncodingFilter.java:201) ~[spring-web-5.3.14.jar:5.3.14] at org.springframework.web.filter.OncePerRequestFilter.doFilter(OncePerRequestFilter.java:117) ~[spring-web-5.3.14.jar:5.3.14] at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:189) ~[tomcat-embed-core-9.0.56.jar:9.0.56] at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:162) ~[tomcat-embed-core-9.0.56.jar:9.0.56] at org.apache.catalina.core.StandardWrapperValve.invoke(StandardWrapperValve.java:197) ~[tomcat-embed-core-9.0.56.jar:9.0.56] at org.apache.catalina.core.StandardContextValve.invoke(StandardContextValve.java:97) ~[tomcat-embed-core-9.0.56.jar:9.0.56] at org.apache.catalina.authenticator.AuthenticatorBase.invoke(AuthenticatorBase.java:540) ~[tomcat-embed-core-9.0.56.jar:9.0.56] at org.apache.catalina.core.StandardHostValve.invoke(StandardHostValve.java:135) ~[tomcat-embed-core-9.0.56.jar:9.0.56] at org.apache.catalina.valves.ErrorReportValve.invoke(ErrorReportValve.java:92) ~[tomcat-embed-core-9.0.56.jar:9.0.56] at org.apache.catalina.core.StandardEngineValve.invoke(StandardEngineValve.java:78) ~[tomcat-embed-core-9.0.56.jar:9.0.56] at org.apache.catalina.connector.CoyoteAdapter.service(CoyoteAdapter.java:357) ~[tomcat-embed-core-9.0.56.jar:9.0.56] at org.apache.coyote.http11.Http11Processor.service(Http11Processor.java:382) ~[tomcat-embed-core-9.0.56.jar:9.0.56] at org.apache.coyote.AbstractProcessorLight.process(AbstractProcessorLight.java:65) ~[tomcat-embed-core-9.0.56.jar:9.0.56] at org.apache.coyote.AbstractProtocol$ConnectionHandler.process(AbstractProtocol.java:895) ~[tomcat-embed-core-9.0.56.jar:9.0.56] at org.apache.tomcat.util.net.NioEndpoint$SocketProcessor.doRun(NioEndpoint.java:1732) ~[tomcat-embed-core-9.0.56.jar:9.0.56] at org.apache.tomcat.util.net.SocketProcessorBase.run(SocketProcessorBase.java:49) ~[tomcat-embed-core-9.0.56.jar:9.0.56] at org.apache.tomcat.util.threads.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1191) ~[tomcat-embed-core-9.0.56.jar:9.0.56] at org.apache.tomcat.util.threads.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:659) ~[tomcat-embed-core-9.0.56.jar:9.0.56] at org.apache.tomcat.util.threads.TaskThread$WrappingRunnable.run(TaskThread.java:61) ~[tomcat-embed-core-9.0.56.jar:9.0.56] at java.base/java.lang.Thread.run(Thread.java:833) ~[na:na]

ProductController.addProductToCart:

 @PostMapping("/addProduct")
    @ResponseStatus(code = HttpStatus.OK)
    public ResponseEntity<Product> addProductToCart(@RequestParam(required = false) int productId,
                                                    @RequestParam(required = false) int userId,
                                                    @RequestParam(required = false) int quantity){
        try {
            return new ResponseEntity<>(productService.addToCart(productId, userId, quantity), HttpStatus.OK);
        } catch (ProductUnavailableException e) {
            return new ResponseEntity(new ResponseMessage("The quantity of product: " e.getProduct().getName() " is unavailable!"), HttpStatus.BAD_REQUEST);
        }
    }

ProductService.addToCart:

 @Transactional(readOnly = false, rollbackForClassName = {ProductUnavailableException})
public Product addToCart (int productId, int userId, int quantity) throws ProductUnavailableException {

    User user = userRepository.findById(userId);

    Product product = productRepository.findById(productId);
    Cart c = user.getCart();
    List<ProductInCart> pc = c.getProductsInCart();
    ProductInCart p = new ProductInCart();
    p.setProduct(product);
    p.setCart(c);
    p.setQuantity(quantity);
    ProductInCart justAdded = productInCartRepository.save(p);
    Product pr = justAdded.getProduct();
    int newQuantity = pr.getQuantity() - p.getQuantity();
    if (newQuantity < 0) {
        p.setCart(null);
        productInCartRepository.delete(p);
        throw new ProductUnavailableException(pr);
    }
    product.setQuantity(newQuantity);

    float newTotal=c.getTotal() pr.getPrice();
    c.setTotal(newTotal);

    return pr;

}

Table Cart:

org.hibernate.HibernateException：找到了多行具有給定識別符號的行：40，對于類：com.ptoject.demo.entities.User

Cart entity:

@Getter
@Setter
@EqualsAndHashCode
@ToString
@Entity
@Table(name = "cart", schema = "purchase")
public class Cart {

    @Id
    @GeneratedValue(strategy = GenerationType.IDENTITY)
    @Column(name = "id", nullable = false)
    private int id;

    @Basic
    @Column(name = "total", nullable = true)
    private float total;


    @OneToMany(mappedBy = "cart", cascade = CascadeType.MERGE)
    private List<ProductInCart> productsInCart;


    @OneToOne
    @JoinColumn(name = "user_id")
    private User buyer;

    @OneToOne(mappedBy = "cart")
    @JsonIgnore
    private Order order;

}

User table:

org.hibernate.HibernateException：找到了多行具有給定識別符號的行：40，對于類：com.ptoject.demo.entities.User

uj5u.com熱心網友回復：

User user = userRepository.findById(userId);

當您的 JPA 方法期望一個結果時，在這種情況下，您期望回傳為 aUser并且有更多記錄要回傳 Hibernate 將拋出一個例外，更具體地說是您收到的那個。

解決方案

如果您已定義的某些自定義 JPA 方法發生此錯誤，則應在存盤庫中定義此方法，以不回傳單個結果，而是回傳結果串列（如果這是業務明智的接受）。因此，在某些方法而不是 return 中User，您應該將定義修改為 return List<User>。在這種情況下，當要回傳多條記錄時，Hibernate 不會拋出這個例外。

但是在您的情況下，由于它是 Spring 提供的默認方法，findById(userId)并且考慮到它是按主鍵搜索的，因此上述方法不應該是解決方案。您的資料庫架構應該是錯誤的，并且該表中的記錄也是如此。

嘗試手動更正User資料庫中的表以將列設定id為primary key，并嘗試洗掉id存在的多個相同記錄。當您清理并更正資料庫中的表時，此問題不應再出現。

在您的代碼中，我沒有看到任何使用entityManager.refresh. 這可能會產生一些問題。此外，它Transactional不適用于您在代碼中拋出的已檢查例外。檢查以下代碼并應用它。清理資料庫中的記錄并使用此代碼重試以查看問題是否已消除。

@Transactional(readOnly = false, rollbackForClassName = {ProductUnavailableException})
    public Product addToCart (int productId, int userId, int quantity) throws ProductUnavailableException {
        
        User user = userRepository.findById(userId);
       
        Product product = productRepository.findById(productId);
        Cart c = user.getCart();
        List<ProductInCart> pc = c.getProductsInCart();
        ProductInCart p = new ProductInCart();
        p.setProduct(product);
        p.setCart(c);
        p.setQuantity(quantity);
        ProductInCart justAdded = productInCartRepository.save(p);
        int newQuantity = product.getQuantity() - p.getQuantity();
        if (newQuantity < 0) {
            p.setCart(null);
            productInCartRepository.delete(p);
            throw new ProductUnavailableException(pr);
        }
        product.setQuantity(newQuantity);

        float newTotal=c.getTotal() product.getPrice();
        c.setTotal(newTotal);

        return product;

    }

uj5u.com熱心網友回復：

我解決了我的問題，我將發布對我有用的解決方案，以防萬一遇到同樣問題的人正在尋找解決方案。我在 和 之間有 1:1 的關系，在和Cart之間User有 1:n 的關系，在User和之間Order有 1:1 的關系。可能，這在關系之間創建了類似回圈的東西，所以我通過洗掉和an之間的關系來解決我的問題，方法是按以下方式編輯：CartOrderCartOrderOrderService.createOrder(paymentId, userId, cartId)

@Transactional(readOnly = false)
    public Order createOrder(int userId, int paymentId) {
        User user = userRepository.findById(userId);
        Payment payment=paymentRepository.findById(paymentId);

        Order o = new Order();
        o.setBuyer(user);
        o.setTotal(payment.getTotal());
        o.setPayment(payment);
        List<ProductInOrder> po=new LinkedList<>();
        List<ProductInCart> pc=user.getCart().getProductsInCart();
        for(ProductInCart productInCart: pc){
            ProductInOrder productInOrder=new ProductInOrder();
            productInOrder.setProduct(productInCart.getProduct());
            productInOrder.setQuantity(productInCart.getQuantity());
            productInOrder.setOrder(o);
            productInOrderRepository.save(productInOrder);
            po.add(productInOrder);
        }

        o.setProductsInOrder(po);


        List<Order> ordersForUser = user.getOrders();
        ordersForUser.add(o);
        user.setOrders(ordersForUser);
        payment.setOrder(o);

        Order justAdded = orderRepository.save(o);
        entityManager.refresh(justAdded);


        entityManager.refresh(o);
        entityManager.refresh(user);
        return justAdded;
}

OrderController.createOrder：

@PostMapping("/create")
    @ResponseStatus(code = HttpStatus.OK)
    public ResponseEntity<Order> createOrder (@RequestParam(required = false) int buyerId,
                                                    @RequestParam(required = false) int paymentId){

            return new ResponseEntity<>(orderService.createOrder(buyerId, paymentId), HttpStatus.OK);

    }

訂單物體：

@Getter
@Setter
@EqualsAndHashCode
@ToString
@Entity

@Table(name = "order", schema = "purchase")
public class Order {

    @Id
    @GeneratedValue(strategy = GenerationType.IDENTITY)
    @Column(name = "id", nullable = false)
    private int id;

    @Basic
    @CreationTimestamp
    @Temporal(TemporalType.TIMESTAMP)
    @Column(name = "order_time")
    private Date orderTime;


    @OneToMany(mappedBy = "order", cascade = CascadeType.MERGE)
    private List<ProductInOrder> productsInOrder;


    @ManyToOne
    @JoinColumn(name = "buyer")
    private User buyer;

    @OneToOne
    @JoinColumn(name = "payment_id")
    @JsonIgnore
    private Payment payment;

    @Basic
    @Column(name = "total", nullable = true)
    private float total;
}

購物車物體：

@Getter
@Setter
@EqualsAndHashCode
@ToString
@Entity
@Table(name = "cart", schema = "purchase")
public class Cart {

    @Id
    @GeneratedValue(strategy = GenerationType.IDENTITY)
    @Column(name = "id", nullable = false)
    private int id;

    @Basic
    @Column(name = "total", nullable = true)
    private float total;


    @OneToMany(mappedBy = "cart", cascade = CascadeType.MERGE)
    private List<ProductInCart> productsInCart;


    @OneToOne
    @JoinColumn(name = "user_id")
    private User buyer;

}

轉載請註明出處，本文鏈接：https://www.uj5u.com/qita/426238.html

標籤：spring spring-boot hibernate exception backend

上一篇：類不存在且存在

下一篇：檔案存在時的javajava.io.FileNotFoundException

標籤雲
其他(157675) Python(38076) JavaScript(25376) Java(17977) C(15215) 區塊鏈(8255) C＃(7972) AI(7469) 爪哇(7425) MySQL(7132) html(6777) 基礎類(6313) sql(6102) 熊猫(6058) PHP(5869) 数组(5741) R(5409) Linux(5327) 反应(5209) 腳本語言(PerlPython)(5129) 非技術區(4971) Android(4554) 数据框(4311) css(4259) 节点.js(4032) C語言(3288) json(3245) 列表(3129) 扑(3119) C++語言(3117) 安卓(2998) 打字稿(2995) VBA(2789) Java相關(2746) 疑難問題(2699) 细绳(2522) 單片機工控(2479) iOS(2429) ASP.NET(2402) MongoDB(2323) 麻木的(2285) 正则表达式(2254) 字典(2211) 循环(2198) 迅速(2185) 擅长(2169) 镖(2155) 功能(1967) .NET技术(1958) Web開發(1951) python-3.x(1918) HtmlCss(1915) 弹簧靴(1913) C++(1909) xml(1889) PostgreSQL(1872) .NETCore(1853) 谷歌表格(1846) Unity3D(1843) for循环(1842)

熱門瀏覽
  • 網閘典型架構簡述

    網閘架構一般分為兩種：三主機的三系統架構網閘和雙主機的2+1架構網閘。 三主機架構分別為內端機、外端機和仲裁機。三機無論從軟體和硬體上均各自獨立。首先從硬體上來看，三機都用各自獨立的主板、記憶體及存盤設備。從軟體上來看，三機有各自獨立的作業系統。這樣能達到完全的三機獨立。對于“2+1”系統，“2”分為 ......

    uj5u.com 2020-09-10 02:00:44 more
  • 如何從xshell上傳檔案到centos linux虛擬機里

    如何從xshell上傳檔案到centos linux虛擬機里及：虛擬機CentOs下執行 yum -y install lrzsz命令，出現錯誤：鏡像無法找到軟體包 前言 一、安裝lrzsz步驟 二、上傳檔案 三、遇到的問題及解決方案 總結 前言 提示：其實很簡單，往虛擬機上安裝一個上傳檔案的工具 ......

    uj5u.com 2020-09-10 02:00:47 more
  • 一、SQLMAP入門

    一、SQLMAP入門 1、判斷是否存在注入 sqlmap.py -u 網址/id=1 id=1不可缺少。當注入點后面的引數大于兩個時。需要加雙引號， sqlmap.py -u "網址/id=1&uid=1" 2、判斷文本中的請求是否存在注入 從文本中加載http請求，SQLMAP可以從一個文本檔案中 ......

    uj5u.com 2020-09-10 02:00:50 more
  • Metasploit 簡單使用教程

    metasploit 簡單使用教程 浩先生， 2020-08-28 16:18:25 分類專欄： kail 網路安全 linux 文章標簽： linux資訊安全 編輯 著作權 metasploit 使用教程 前言 一、Metasploit是什么？ 二、準備作業 三、具體步驟 前言 Msfconsole ......

    uj5u.com 2020-09-10 02:00:53 more
  • 游戲逆向之驅動層與用戶層通訊

    驅動層代碼： #pragma once #include <ntifs.h> #define add_code CTL_CODE(FILE_DEVICE_UNKNOWN,0x800,METHOD_BUFFERED,FILE_ANY_ACCESS) /* 更多游戲逆向視頻www.yxfzedu.com ......

    uj5u.com 2020-09-10 02:00:56 more
  • 北斗電力時鐘（北斗授時服務器）讓網路資料更精準

    北斗電力時鐘（北斗授時服務器）讓網路資料更精準 北斗電力時鐘（北斗授時服務器）讓網路資料更精準 京準電子科技官微——ahjzsz 近幾年，資訊技術的得了快速發展，互聯網在逐漸普及，其在人們生活和生產中都得到了廣泛應用，并且取得了不錯的應用效果。計算機網路資訊在電力系統中的應用，一方面使電力系統的運行 ......

    uj5u.com 2020-09-10 02:01:03 more
  • 【CTF】CTFHub 技能樹 彩蛋 writeup

    ?碎碎念 CTFHub：https://www.ctfhub.com/ 筆者入門CTF時時剛開始刷的是bugku的舊平臺，后來才有了CTFHub。 感覺不論是網頁UI設計，還是題目質量，賽事跟蹤，工具軟體都做得很不錯。 而且因為獨到的金幣制度的確讓人有一種想去刷題賺金幣的感覺。 個人還是非常喜歡這個 ......

    uj5u.com 2020-09-10 02:04:05 more
  • 02windows基礎操作

    我學到了一下幾點 Windows系統目錄結構與滲透的作用 常見Windows的服務詳解 Windows埠詳解 常用的Windows注冊表詳解 hacker DOS命令詳解（net user / type /md /rd/ dir /cd /net use copy、批處理 等） 利用dos命令制作 ......

    uj5u.com 2020-09-10 02:04:18 more
  • 03.Linux基礎操作

    我學到了以下幾點 01Linux系統介紹02系統安裝，密碼啊破解03Linux常用命令04LAMP 01LINUX windows： win03 8 12 16 19 配置不繁瑣 Linux：redhat,centos(紅帽社區版)，Ubuntu server,suse unix:金融機構，證券，銀 ......

    uj5u.com 2020-09-10 02:04:30 more
  • 05HTML

    01HTML介紹 02頭部標簽講解03基礎標簽講解04表單標簽講解 HTML前段語言 js1.了解代碼2.根據代碼 懂得挖掘漏洞 （POST注入/XSS漏洞上傳）3.黑帽seo 白帽seo 客戶網站被黑帽植入劫持代碼如何處理4.熟悉html表單 <html><head><title>TDK標題，描述 ......

    uj5u.com 2020-09-10 02:04:36 more
最新发布
  • 2023年最新微信小程式抓包教程

    01 開門見山 隔一個月發一篇文章，不過分。 首先回顧一下《微信系結手機號資料庫被脫庫事件》，我也是第一時間得知了這個訊息，然后跟蹤了整件事情的經過。下面是這起事件的相關截圖以及近日流出的一萬條資料樣本： 個人認為這件事也沒什么，還不如關注一下之前45億快遞資料查詢渠道疑似在近日復活的訊息。 訊息是 ......

    uj5u.com 2023-04-20 08:48:24 more
  • web3 產品介紹：metamask 錢包 使用最多的瀏覽器插件錢包

    Metamask錢包是一種基于區塊鏈技術的數字貨幣錢包，它允許用戶在安全、便捷的環境下管理自己的加密資產。Metamask錢包是以太坊生態系統中最流行的錢包之一，它具有易于使用、安全性高和功能強大等優點。 本文將詳細介紹Metamask錢包的功能和使用方法。 一、 Metamask錢包的功能 數字資 ......

    uj5u.com 2023-04-20 08:47:46 more
  • vulnhub_Earth

    前言 靶機地址->>>vulnhub_Earth 攻擊機ip：192.168.20.121 靶機ip：192.168.20.122 參考文章 https://www.cnblogs.com/Jing-X/archive/2022/04/03/16097695.html https://www.cnb ......

    uj5u.com 2023-04-20 07:46:20 more
  • 從4k到42k，軟體測驗工程師的漲薪史，給我看哭了

    清明節一過，盲猜大家已經無心上班，在數著日子準備過五一，但一想到銀行卡里的余額……瞬間心情就不美麗了。最近，2023年高校畢業生就業調查顯示，本科畢業月平均起薪為5825元。調查一出，便有很多同學表示自己又被平均了。看著這一資料，不免讓人想到前不久中國青年報的一項調查：近六成大學生認為畢業10年內會 ......

    uj5u.com 2023-04-20 07:44:00 more
  • 最新版本 Stable Diffusion 開源 AI 繪畫工具之中文自動提詞篇

    🎈 標簽生成器 由于輸入正向提示詞 prompt 和反向提示詞 negative prompt 都是使用英文，所以對學習母語的我們非常不友好 使用網址：https://tinygeeker.github.io/p/ai-prompt-generator 這個網址是為了讓大家在使用 AI 繪畫的時候 ......

    uj5u.com 2023-04-20 07:43:36 more
  • 漫談前端自動化測驗演進之路及測驗工具分析

    隨著前端技術的不斷發展和應用程式的日益復雜，前端自動化測驗也在不斷演進。隨著 Web 應用程式變得越來越復雜，自動化測驗的需求也越來越高。如今，自動化測驗已經成為 Web 應用程式開發程序中不可或缺的一部分，它們可以幫助開發人員更快地發現和修復錯誤，提高應用程式的性能和可靠性。 ......

    uj5u.com 2023-04-20 07:43:16 more
  • CANN開發實踐：4個DVPP記憶體問題的典型案例解讀

    摘要：由于DVPP媒體資料處理功能對存放輸入、輸出資料的記憶體有更高的要求（例如，記憶體首地址128位元組對齊），因此需呼叫專用的記憶體申請介面，那么本期就分享幾個關于DVPP記憶體問題的典型案例，并給出原因分析及解決方法。 本文分享自華為云社區《FAQ_DVPP記憶體問題案例》，作者：昇騰CANN。 DVPP ......

    uj5u.com 2023-04-20 07:43:03 more
  • msf學習

    msf學習 以kali自帶的msf為例 一、msf核心模塊與功能 msf模塊都放在/usr/share/metasploit-framework/modules目錄下 1、auxiliary 輔助模塊，輔助滲透（埠掃描、登錄密碼爆破、漏洞驗證等） 2、encoders 編碼器模塊，主要包含各種編碼 ......

    uj5u.com 2023-04-20 07:42:59 more
  • Halcon軟體安裝與界面簡介

    1. 下載Halcon17版本到到本地 2. 雙擊安裝包后 3. 步驟如下 1.2 Halcon軟體安裝 界面分為四大塊 1. Halcon的五個助手 1) 影像采集助手：與相機連接，設定相機引數，采集影像 2) 標定助手：九點標定或是其它的標定，生成標定檔案及內參外參，可以將像素單位轉換為長度單位 ......

    uj5u.com 2023-04-20 07:42:17 more
  • 在MacOS下使用Unity3D開發游戲

    第一次發博客，先發一下我的游戲開發環境吧。 去年2月份買了一臺MacBookPro2021 M1pro(以下簡稱mbp)，這一年來一直在用mbp開發游戲。我大致分享一下我的開發工具以及使用體驗。 1、Unity 官網鏈接： https://unity.cn/releases 我一般使用的Apple ......

    uj5u.com 2023-04-20 07:40:19 more

Copyright © 2010-2020 有解無憂