Hibernate以错误的顺序持久保存我的OneToOne实体

时间：2016-08-25 13:35:38

标签： java hibernate jpa one-to-one

我正在使用Hibernate 4.3.11并尝试将具有一对一关系的实体持久化到另一个实体，但Hibernate似乎试图以错误的顺序执行持久性，从而导致ConstraintViolationException。

以下是我的实体：

@Entity
@Table(name = "B2B_ORDER")
public class Order implements java.io.Serializable
{

    @Id
    @Column(name = "ORDER_NUMBER", unique = true, nullable = false, length = 32)
    private String              orderNumber;

    @OneToOne(optional = false, cascade = CascadeType.ALL, fetch = FetchType.LAZY, mappedBy = "order")
    private OrderCustomer       orderCustomer;
...
}

@Entity
@Table(name = "B2B_ORDER_CUSTOMER")
public class OrderCustomer implements java.io.Serializable
{

    @Id
    @Column(name = "ORDER_NUMBER")
    private String            orderNumber;

    @OneToOne(optional = false)
    @JoinColumn(name = "ORDER_NUMBER", referencedColumnName =  "ORDER_NUMBER")
    private Order             order;
...
}

我尝试做的就是使用OrderCustomer创建一个Order并保留Order，它也应该创建OrderCustomer记录：

Order order = new Order();
order.setOrderNumber(orderNumber);
...
OrderCustomer orderCustomer = new OrderCustomer();
orderCustomer.setOrder(order);
orderCustomer.setOrderNumber(order.getOrderNumber());
order.setOrderCustomer(orderCustomer);
...
order = orderRepository.save(order);

请注意，orderRepository是一个Spring存储库对象，所有save方法都是调用entityManager.persist（entity）。 当我运行此代码时，由于外键，我在DB中遇到了完整性约束违规：

  

2016-08-24 15：03：00,425 DEBUG [org.hibernate.SQL]（http-nio-9090-exec-1）[SqlStatementLogger.java:109]插入b2b_order_customer（customer_profile_txt，order_number）值（？ ，？）   2016-08-24 15：03：00,606 WARN [org.hibernate.engine.jdbc.spi.SqlExceptionHelper]（http-nio-9090-exec-1）[SqlExceptionHelper.java:144] SQL错误：-530，SQLState： 23503   2016-08-24 15：03：00,607 ERROR [org.hibernate.engine.jdbc.spi.SqlExceptionHelper]（http-nio-9090-exec-1）[SqlExceptionHelper.java:146] DB2 SQL错误：SQLCODE = -530 ，SQLSTATE = 23503，SQLERRMC = CWSODEV2.B2B_ORDER_CUSTOMER.B2B_ORDER_CUSTOMER_ORD_NUM_FK，DRIVER = 4.15.100   2016-08-24 15：03：00,612 INFO [org.hibernate.engine.jdbc.batch.internal.AbstractBatchImpl]（http-nio-9090-exec-1）[AbstractBatchImpl.java:208] HHH000010：关于批量发布它仍然包含JDBC语句   2016-08-24 15：03：00,721 ERROR [...]（http-nio-9090-exec-1）[OrderProcessor.java:188]持久订单时出错：   org.springframework.dao.DataIntegrityViolationException：无法执行语句; SQL [不适用];约束[null];嵌套异常是org.hibernate.exception.ConstraintViolationException：无法执行语句       在org.springframework.orm.jpa.vendor.HibernateJpaDialect.convertHibernateAccessException（HibernateJpaDialect.java:259）〜[spring-orm-4.2.3.RELEASE.jar！/：4.2.3.RELEASE]       在org.springframework.orm.jpa.vendor.HibernateJpaDialect.translateExceptionIfPossible（HibernateJpaDialect.java:225）〜[spring-orm-4.2.3.RELEASE.jar！/：4.2.3.RELEASE]       在org.springframework.orm.jpa.AbstractEntityManagerFactoryBean.translateExceptionIfPossible（AbstractEntityManagerFactoryBean.java:417）〜[spring-orm-4.2.3.RELEASE.jar！/：4.2.3.RELEASE]       在org.springframework.dao.support.ChainedPersistenceExceptionTranslator.translateExceptionIfPossible（ChainedPersistenceExceptionTranslator.java：59）〜[spring-tx-4.2.3.RELEASE.jar！/：4.2.3.RELEASE]       在org.springframework.dao.support.DataAccessUtils.translateIfNecessary（DataAccessUtils.java:213）〜[spring-tx-4.2.3.RELEASE.jar！/：4.2.3.RELEASE]       在org.springframework.dao.support.PersistenceExceptionTranslationInterceptor.invoke（PersistenceExceptionTranslationInterceptor.java：147）〜[spring-tx-4.2.3.RELEASE.jar！/：4.2.3.RELEASE]       在org.springframework.aop.framework.ReflectiveMethodInvocation.proceed（ReflectiveMethodInvocation.java:179）[spring-aop-4.2.3.RELEASE.jar！/：4.2.3.RELEASE]       在org.springframework.data.jpa.repository.support.CrudMethodMetadataPostProcessor $ CrudMethodMetadataPopulatingMethodInterceptor.invoke（CrudMethodMetadataPostProcessor.java：131）〜[spring-data-jpa-1.9.1.RELEASE.jar！/：na]       在org.springframework.aop.framework.ReflectiveMethodInvocation.proceed（ReflectiveMethodInvocation.java:179）[spring-aop-4.2.3.RELEASE.jar！/：4.2.3.RELEASE]       在org.springframework.aop.interceptor.ExposeInvocationInterceptor.invoke（ExposeInvocationInterceptor.java:92）[spring-aop-4.2.3.RELEASE.jar！/：4.2.3.RELEASE]       在org.springframework.aop.framework.ReflectiveMethodInvocation.proceed（ReflectiveMethodInvocation.java:179）[spring-aop-4.2.3.RELEASE.jar！/：4.2.3.RELEASE]       在org.springframework.aop.framework.JdkDynamicAopProxy.invoke（JdkDynamicAopProxy.java:208）〜[spring-aop-4.2.3.RELEASE.jar！/：4.2.3.RELEASE]       在com.sun.proxy。$ Proxy111.save（未知来源）〜[na：na]       at sun.reflect.NativeMethodAccessorImpl.invoke0（Native Method）〜[na：1.8.0_91]       at sun.reflect.NativeMethodAccessorImpl.invoke（Unknown Source）〜[na：1.8.0_91]       at sun.reflect.DelegatingMethodAccessorImpl.invoke（Unknown Source）〜[na：1.8.0_91]       at java.lang.reflect.Method.invoke（Unknown Source）〜[na：1.8.0_91]       在org.springframework.aop.support.AopUtils.invokeJoinpointUsingReflection（AopUtils.java:302）〜[spring-aop-4.2.3.RELEASE.jar！/：4.2.3.RELEASE]       在org.springframework.aop.framework.ReflectiveMethodInvocation.invokeJoinpoint（ReflectiveMethodInvocation.java:190）[spring-aop-4.2.3.RELEASE.jar！/：4.2.3.RELEASE]       在org.springframework.aop.framework.ReflectiveMethodInvocation.proceed（ReflectiveMethodInvocation.java:157）[spring-aop-4.2.3.RELEASE.jar！/：4.2.3.RELEASE]       在org.springframework.dao.support.PersistenceExceptionTranslationInterceptor.invoke（PersistenceExceptionTranslationInterceptor.java：136）〜[spring-tx-4.2.3.RELEASE.jar！/：4.2.3.RELEASE]       在org.springframework.aop.framework.ReflectiveMethodInvocation.proceed（ReflectiveMethodInvocation.java:179）[spring-aop-4.2.3.RELEASE.jar！/：4.2.3.RELEASE]       在org.springframework.aop.aspectj.MethodInvocationProceedingJoinPoint.proceed（MethodInvocationProceedingJoinPoint.java:85）[spring-aop-4.2.3.RELEASE.jar！/：4.2.3.RELEASE]       ...       at sun.reflect.NativeMethodAccessorImpl.invoke0（Native Method）〜[na：1.8.0_91]       at sun.reflect.NativeMethodAccessorImpl.invoke（Unknown Source）〜[na：1.8.0_91]       at sun.reflect.DelegatingMethodAccessorImpl.invoke（Unknown Source）〜[na：1.8.0_91]       at java.lang.reflect.Method.invoke（Unknown Source）〜[na：1.8.0_91]       在org.springframework.aop.aspectj.AbstractAspectJAdvice.invokeAdviceMethodWithGivenArgs（AbstractAspectJAdvice.java:621）[spring-aop-4.2.3.RELEASE.jar！/：4.2.3.RELEASE]       在org.springframework.aop.aspectj.AbstractAspectJAdvice.invokeAdviceMethod（AbstractAspectJAdvice.java:610）[spring-aop-4.2.3.RELEASE.jar！/：4.2.3.RELEASE]       在org.springframework.aop.aspectj.AspectJAroundAdvice.invoke（AspectJAroundAdvice.java:68）[spring-aop-4.2.3.RELEASE.jar！/：4.2.3.RELEASE]       在org.springframework.aop.framework.ReflectiveMethodInvocation.proceed（ReflectiveMethodInvocation.java:179）[spring-aop-4.2.3.RELEASE.jar！/：4.2.3.RELEASE]       在org.springframework.aop.interceptor.ExposeInvocationInterceptor.invoke（ExposeInvocationInterceptor.java:92）[spring-aop-4.2.3.RELEASE.jar！/：4.2.3.RELEASE]       在org.springframework.aop.framework.ReflectiveMethodInvocation.proceed（ReflectiveMethodInvocation.java:179）[spring-aop-4.2.3.RELEASE.jar！/：4.2.3.RELEASE]       在org.springframework.aop.framework.JdkDynamicAopProxy.invoke（JdkDynamicAopProxy.java:208）〜[spring-aop-4.2.3.RELEASE.jar！/：4.2.3.RELEASE]       在com.sun.proxy。$ Proxy113.save（未知来源）〜[na：na]       ...   引起：com.ibm.db2.jcc.am.SqlIntegrityConstraintViolationException：DB2 SQL错误：SQLCODE = -530，SQLSTATE = 23503，SQLERRMC = CWSODEV2.B2B_ORDER_CUSTOMER.B2B_ORDER_CUSTOMER_ORD_NUM_FK，DRIVER = 4.15.100       在com.ibm.db2.jcc.am.fd.a（fd.java:692）〜[db2jcc4-4.15.100.jar！/：na]       在com.ibm.db2.jcc.am.fd.a（fd.java:60）〜[db2jcc4-4.15.100.jar！/：na]       在com.ibm.db2.jcc.am.fd.a（fd.java:127）〜[db2jcc4-4.15.100.jar！/：na]       在com.ibm.db2.jcc.am.qo.b（qo.java:2412）〜[db2jcc4-4.15.100.jar！/：na]       在com.ibm.db2.jcc.am.qo.c（qo.java:2395）〜[db2jcc4-4.15.100.jar！/：na]       在com.ibm.db2.jcc.t4.ab.l（ab.java:374）〜[db2jcc4-4.15.100.jar！/：na]       在com.ibm.db2.jcc.t4.ab.a（ab.java:61）〜[db2jcc4-4.15.100.jar！/：na]       在com.ibm.db2.jcc.t4.p.a（p.java:50）〜[db2jcc4-4.15.100.jar！/：na]       在com.ibm.db2.jcc.t4.rb.b（rb.java:220）〜[db2jcc4-4.15.100.jar！/：na]       在com.ibm.db2.jcc.am.ro.qc（ro.java:3526）〜[db2jcc4-4.15.100.jar！/：na]       在com.ibm.db2.jcc.am.ro.b（ro.java:4489）〜[db2jcc4-4.15.100.jar！/：na]       在com.ibm.db2.jcc.am.ro.ic（ro.java:807）〜[db2jcc4-4.15.100.jar！/：na]       在com.ibm.db2.jcc.am.ro.executeUpdate（ro.java:781）〜[db2jcc4-4.15.100.jar！/：na]       在org.hibernate.engine.jdbc.internal.ResultSetReturnImpl.executeUpdate（ResultSetReturnImpl.java:208）〜[hibernate-core-4.3.11.Final.jar！/：4.3.11.Final]       ...省略了205个常用帧

显然，Hibernate试图在Order之前保持OrderCustomer。这是应该保持的相反顺序。如果考虑OneToMany级联关系，则单个实体将始终在集合之前保留（因此满足外键）。为什么这对一对一不起作用？

感谢。

2 个答案:

答案 0 :(得分：0)

来自JPA参考：

  

对于一对一的双向关系，拥有方   对应于包含相应外键的一侧

在这种情况下，-- Using Python3 CMake Error at /usr/share/cmake-3.5/Modules/FindBoost.cmake:1677 (message): Unable to find the requested Boost libraries. Boost version: 1.59.0 Boost include path: /home/sumit/Documents/Software/boost_1_59_0 Could not find the following static Boost libraries: boost_python3 No Boost libraries were found. You may need to set BOOST_LIBRARYDIR to the directory containing Boost libraries or BOOST_ROOT to the location of Boost. Call Stack (most recent call first): CMakeLists.txt:48 (find_package) Boost Paths: Include : /home/sumit/Documents/Software/boost_1_59_0 **Libraries**: /home/sumit/Documents/Software/boost_1_59_0/libs Configuring incomplete, errors occurred! 是拥有方。

  • 您可以将OrderCustomer参数移至cascade并保存OrderCustomer，而不是OrderCustomer。

  • 您可以将Order移至@JoinColumn表。

答案 1 :(得分：0)

问题是optional参数。为什么？当此参数为false时，则Hibernate“信任您”并认为该数据库包含相关实体。

您在两个实体中都使用optional = false。这就是问题所在。

当两个实体都有optional = false时：

Hibernate: create table B2B_ORDER (ORDER_NUMBER varchar(32) not null, primary key (ORDER_NUMBER))
Hibernate: create table B2B_ORDER_CUSTOMER (ORDER_NUMBER varchar(32) not null, primary key (ORDER_NUMBER))
Hibernate: alter table B2B_ORDER_CUSTOMER add constraint FKsvt9d7j362lni8mxb83y7cygj foreign key (ORDER_NUMBER) references B2B_ORDER
Hibernate: insert into B2B_ORDER_CUSTOMER (ORDER_NUMBER) values (?)
ERROR :( Order table is empty.

只有OrderCustomer才有optional = false：

Hibernate: create table B2B_ORDER (ORDER_NUMBER varchar(32) not null, primary key (ORDER_NUMBER))
Hibernate: create table B2B_ORDER_CUSTOMER (ORDER_NUMBER varchar(32) not null, primary key (ORDER_NUMBER))
Hibernate: alter table B2B_ORDER_CUSTOMER add constraint FKsvt9d7j362lni8mxb83y7cygj foreign key (ORDER_NUMBER) references B2B_ORDER
Hibernate: insert into B2B_ORDER (ORDER_NUMBER) values (?)
Hibernate: insert into B2B_ORDER_CUSTOMER (ORDER_NUMBER) values (?)
SUCCESS :)

只有订单有optional = false：

Hibernate: create table B2B_ORDER (ORDER_NUMBER varchar(32) not null, primary key (ORDER_NUMBER))
Hibernate: create table B2B_ORDER_CUSTOMER (ORDER_NUMBER varchar(255) not null, primary key (ORDER_NUMBER))
Hibernate: insert into B2B_ORDER_CUSTOMER (ORDER_NUMBER) values (?)
Hibernate: insert into B2B_ORDER (ORDER_NUMBER) values (?)
SUCCESS :)

您可以看到@OneToOne在拥有方（OrderCustomer）覆盖Order @OneToOne optional参数

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