Spring Data JPA OneToMany 映射到非 Id 列适用于一组实体，但无法用于其他实体

分类：编程问答

如何解决Spring Data JPA OneToMany 映射到非 Id 列适用于一组实体，但无法用于其他实体

User、Role、UserRole 映射工作正常，但 Project、SalesOrder、ProjectSo 映射失败并出现异常。我读了很多关于“在映射中使用非 pk 列”在 JPA 2.0 中是可选的，但我不确定为什么它适用于 User-Role 而对于 Project-SalesOrder 失败。

时间表基础

@MappedSuperclass
@Data
@EqualsAndHashCode(callSuper = true)
public class TimesheetBase extends Auditable<String> implements Serializable {
    @Id
    @GeneratedValue
    @Column(name = "id")
    protected Long id;

    @Column(name = "active")
    protected boolean active = true;
}

用户


@Entity
@Table(name = "ts_user")
@Data
@EqualsAndHashCode(callSuper = true)
public class User extends TimesheetBase {
    @Column(name = "user_id",unique = true)
    private String userId;

    @Column(name = "display_name")
    private String displayName;

    @OnetoMany(mappedBy = "user")
    private Set<UserRole> userRoles;
}

角色

@Entity
@Table(name = "ts_role")
@Data
@EqualsAndHashCode(callSuper = true)
public class Role extends TimesheetBase {
    @Column(name = "role_id",unique = true)
    private String roleId;

    @Column(name = "role_description")
    private String roleDescription;

    @OnetoMany(mappedBy = "role")
    private Set<UserRole> userRoles;
}

用户角色

@Entity
@Table(name = "ts_user_role")
@Data
@EqualsAndHashCode(callSuper = true)
public class UserRole extends TimesheetBase {
    @ManyToOne
    @JoinColumn(name = "user_id",referencedColumnName = "user_id")
    private User user;

    @ManyToOne
    @JoinColumn(name = "role_id",referencedColumnName = "role_id")
    private Role role;
}

上面的工作非常好。但是，下面的一个失败了。

项目

@Entity
@Table(name = "ts_project")
@Data
@EqualsAndHashCode(callSuper = true)
public class Project extends TimesheetBase {
    @Column(name = "project_id",unique = true)
    private String projectId;

    @Column(name = "project_description")
    private String projectDescription;

    @OnetoMany(mappedBy = "project")
    private Set<ProjectSo> projectSos;
}

销售订单

@Entity
@Table(name = "ts_so")
@Data
@EqualsAndHashCode(callSuper = true)
public class SalesOrder extends TimesheetBase {
    @Column(name = "so_id",unique = true)
    private String soId;

    @Column(name = "so_description")
    private String soDescription;

    @OnetoOne(mappedBy = "salesOrder")
    private ProjectSo projectSo;
}

ProjectSo

@Entity
@Table(name = "ts_project_so")
@Data
@EqualsAndHashCode(callSuper = true)
public class ProjectSo extends TimesheetBase {
    @ManyToOne
    @JoinColumn(name = "project_id",referencedColumnName = "project_id")
    private Project project;

    @OnetoOne
    @JoinColumn(name = "so_id",referencedColumnName = "so_id")
    private SalesOrder salesOrder;
}

异常堆栈跟踪

nested exception is org.hibernate.property.access.spi.PropertyAccessException: Error accessing field [private java.lang.String sg.com.ctc.timesheet.model.Project.projectId] by reflection for persistent property [sg.com.ctc.timesheet.model.Project#projectId] : 258
    at org.springframework.beans.factory.support.AbstractAutowireCapablebeanfactory.initializeBean(AbstractAutowireCapablebeanfactory.java:1794) ~[spring-beans-5.2.10.RELEASE.jar:5.2.10.RELEASE]
    at org.springframework.beans.factory.support.AbstractAutowireCapablebeanfactory.doCreateBean(AbstractAutowireCapablebeanfactory.java:594) ~[spring-beans-5.2.10.RELEASE.jar:5.2.10.RELEASE]
    at org.springframework.beans.factory.support.AbstractAutowireCapablebeanfactory.createBean(AbstractAutowireCapablebeanfactory.java:516) ~[spring-beans-5.2.10.RELEASE.jar:5.2.10.RELEASE]
    at org.springframework.beans.factory.support.Abstractbeanfactory.lambda$doGetBean$0(Abstractbeanfactory.java:324) ~[spring-beans-5.2.10.RELEASE.jar:5.2.10.RELEASE]
    at org.springframework.beans.factory.support.DefaultSingletonBeanRegistry.getSingleton(DefaultSingletonBeanRegistry.java:234) ~[spring-beans-5.2.10.RELEASE.jar:5.2.10.RELEASE]
    at org.springframework.beans.factory.support.Abstractbeanfactory.doGetBean(Abstractbeanfactory.java:322) ~[spring-beans-5.2.10.RELEASE.jar:5.2.10.RELEASE]
    at org.springframework.beans.factory.support.Abstractbeanfactory.getBean(Abstractbeanfactory.java:202) ~[spring-beans-5.2.10.RELEASE.jar:5.2.10.RELEASE]
    at org.springframework.beans.factory.support.DefaultListablebeanfactory.preInstantiateSingletons(DefaultListablebeanfactory.java:897) ~[spring-beans-5.2.10.RELEASE.jar:5.2.10.RELEASE]
    at org.springframework.context.support.AbstractApplicationContext.finishbeanfactoryInitialization(AbstractApplicationContext.java:879) ~[spring-context-5.2.10.RELEASE.jar:5.2.10.RELEASE]
    at org.springframework.context.support.AbstractApplicationContext.refresh(AbstractApplicationContext.java:551) ~[spring-context-5.2.10.RELEASE.jar:5.2.10.RELEASE]
    at org.springframework.boot.web.servlet.context.ServletWebServerApplicationContext.refresh(ServletWebServerApplicationContext.java:143) ~[spring-boot-2.3.5.RELEASE.jar:2.3.5.RELEASE]
    at org.springframework.boot.SpringApplication.refresh(SpringApplication.java:758) ~[spring-boot-2.3.5.RELEASE.jar:2.3.5.RELEASE]
    at org.springframework.boot.SpringApplication.refresh(SpringApplication.java:750) ~[spring-boot-2.3.5.RELEASE.jar:2.3.5.RELEASE]
    at org.springframework.boot.SpringApplication.refreshContext(SpringApplication.java:405) ~[spring-boot-2.3.5.RELEASE.jar:2.3.5.RELEASE]
    at org.springframework.boot.SpringApplication.run(SpringApplication.java:315) ~[spring-boot-2.3.5.RELEASE.jar:2.3.5.RELEASE]
    at org.springframework.boot.SpringApplication.run(SpringApplication.java:1237) ~[spring-boot-2.3.5.RELEASE.jar:2.3.5.RELEASE]
    at org.springframework.boot.SpringApplication.run(SpringApplication.java:1226) ~[spring-boot-2.3.5.RELEASE.jar:2.3.5.RELEASE]
    at sg.com.ctc.timesheet.TimesheetApplication.main(TimesheetApplication.java:10) ~[classes/:na]
Caused by: org.springframework.orm.jpa.JpaSystemException: Error accessing field [private java.lang.String sg.com.ctc.timesheet.model.Project.projectId] by reflection for persistent property [sg.com.ctc.timesheet.model.Project#projectId] : 258; nested exception is org.hibernate.property.access.spi.PropertyAccessException: Error accessing field [private java.lang.String sg.com.ctc.timesheet.model.Project.projectId] by reflection for persistent property [sg.com.ctc.timesheet.model.Project#projectId] : 258
    at org.springframework.orm.jpa.vendor.HibernateJpaDialect.convertHibernateAccessException(HibernateJpaDialect.java:353) ~[spring-orm-5.2.10.RELEASE.jar:5.2.10.RELEASE]
    at org.springframework.orm.jpa.vendor.HibernateJpaDialect.translateExceptionIfPossible(HibernateJpaDialect.java:255) ~[spring-orm-5.2.10.RELEASE.jar:5.2.10.RELEASE]
    at org.springframework.orm.jpa.AbstractEntityManagerfactorybean.translateExceptionIfPossible(AbstractEntityManagerfactorybean.java:528) ~[spring-orm-5.2.10.RELEASE.jar:5.2.10.RELEASE]
    at org.springframework.dao.support.ChainedPersistenceExceptionTranslator.translateExceptionIfPossible(ChainedPersistenceExceptionTranslator.java:61) ~[spring-tx-5.2.10.RELEASE.jar:5.2.10.RELEASE]
    at org.springframework.dao.support.DataAccessUtils.translateIfNecessary(DataAccessUtils.java:242) ~[spring-tx-5.2.10.RELEASE.jar:5.2.10.RELEASE]
    at org.springframework.dao.support.PersistenceExceptionTranslationInterceptor.invoke(PersistenceExceptionTranslationInterceptor.java:154) ~[spring-tx-5.2.10.RELEASE.jar:5.2.10.RELEASE]
    at org.springframework.aop.framework.ReflectiveMethodInvocation.proceed(ReflectiveMethodInvocation.java:186) ~[spring-aop-5.2.10.RELEASE.jar:5.2.10.RELEASE]
    at org.springframework.data.jpa.repository.support.CrudMethodMetadataPostProcessor$CrudMethodMetadataPopulatingMethodInterceptor.invoke(CrudMethodMetadataPostProcessor.java:149) ~[spring-data-jpa-2.3.5.RELEASE.jar:2.3.5.RELEASE]
    at org.springframework.aop.framework.ReflectiveMethodInvocation.proceed(ReflectiveMethodInvocation.java:186) ~[spring-aop-5.2.10.RELEASE.jar:5.2.10.RELEASE]
    at org.springframework.aop.interceptor.ExposeInvocationInterceptor.invoke(ExposeInvocationInterceptor.java:95) ~[spring-aop-5.2.10.RELEASE.jar:5.2.10.RELEASE]
    at org.springframework.aop.framework.ReflectiveMethodInvocation.proceed(ReflectiveMethodInvocation.java:186) ~[spring-aop-5.2.10.RELEASE.jar:5.2.10.RELEASE]
    at org.springframework.aop.framework.JdkDynamicAopProxy.invoke(JdkDynamicAopProxy.java:212) ~[spring-aop-5.2.10.RELEASE.jar:5.2.10.RELEASE]
    at com.sun.proxy.$Proxy130.findByProjectIdAndActiveTrue(UnkNown Source) ~[na:na]
    at java.base/jdk.internal.reflect.NativeMethodAccessorImpl.invoke0(Native Method) ~[na:na]
    at java.base/jdk.internal.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:62) ~[na:na]
    at java.base/jdk.internal.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43) ~[na:na]
    at java.base/java.lang.reflect.Method.invoke(Method.java:566) ~[na:na]
    at org.springframework.aop.support.AopUtils.invokeJoinpointUsingReflection(AopUtils.java:344) ~[spring-aop-5.2.10.RELEASE.jar:5.2.10.RELEASE]
    at org.springframework.aop.framework.JdkDynamicAopProxy.invoke(JdkDynamicAopProxy.java:205) ~[spring-aop-5.2.10.RELEASE.jar:5.2.10.RELEASE]
    at com.sun.proxy.$Proxy83.findByProjectIdAndActiveTrue(UnkNown Source) ~[na:na]
    at sg.com.ctc.timesheet.util.PopulateStaticData.populateProjectSo(PopulateStaticData.java:186) ~[classes/:na]
    at sg.com.ctc.timesheet.util.PopulateStaticData.populateDbWithStaticData(PopulateStaticData.java:124) ~[classes/:na]
    at sg.com.ctc.timesheet.util.PopulateStaticData.afterPropertiesSet(PopulateStaticData.java:48) ~[classes/:na]
    at org.springframework.beans.factory.support.AbstractAutowireCapablebeanfactory.invokeInitMethods(AbstractAutowireCapablebeanfactory.java:1853) ~[spring-beans-5.2.10.RELEASE.jar:5.2.10.RELEASE]
    at org.springframework.beans.factory.support.AbstractAutowireCapablebeanfactory.initializeBean(AbstractAutowireCapablebeanfactory.java:1790) ~[spring-beans-5.2.10.RELEASE.jar:5.2.10.RELEASE]
    ... 17 common frames omitted
Caused by: org.hibernate.property.access.spi.PropertyAccessException: Error accessing field [private java.lang.String sg.com.ctc.timesheet.model.Project.projectId] by reflection for persistent property [sg.com.ctc.timesheet.model.Project#projectId] : 258
    at org.hibernate.property.access.spi.GetterFieldImpl.get(GetterFieldImpl.java:75) ~[hibernate-core-5.4.22.Final.jar:5.4.22.Final]
    at org.hibernate.tuple.component.AbstractComponentTuplizer.getPropertyValue(AbstractComponentTuplizer.java:59) ~[hibernate-core-5.4.22.Final.jar:5.4.22.Final]
    at org.hibernate.type.ComponentType.getPropertyValue(ComponentType.java:419) ~[hibernate-core-5.4.22.Final.jar:5.4.22.Final]
    at org.hibernate.type.ComponentType.getHashCode(ComponentType.java:246) ~[hibernate-core-5.4.22.Final.jar:5.4.22.Final]
    at org.hibernate.engine.spi.EntityUniqueKey.generateHashCode(EntityUniqueKey.java:67) ~[hibernate-core-5.4.22.Final.jar:5.4.22.Final]
    at org.hibernate.engine.spi.EntityUniqueKey.<init>(EntityUniqueKey.java:48) ~[hibernate-core-5.4.22.Final.jar:5.4.22.Final]
    at org.hibernate.type.EntityType.loadByUniqueKey(EntityType.java:748) ~[hibernate-core-5.4.22.Final.jar:5.4.22.Final]
    at org.hibernate.type.EntityType.resolve(EntityType.java:467) ~[hibernate-core-5.4.22.Final.jar:5.4.22.Final]
    at org.hibernate.engine.internal.TwoPhaseLoad$EntityResolver.lambda$static$0(TwoPhaseLoad.java:605) ~[hibernate-core-5.4.22.Final.jar:5.4.22.Final]
    at org.hibernate.engine.internal.TwoPhaseLoad.initializeEntityEntryLoadedState(TwoPhaseLoad.java:248) ~[hibernate-core-5.4.22.Final.jar:5.4.22.Final]
    at org.hibernate.engine.internal.TwoPhaseLoad.initializeEntity(TwoPhaseLoad.java:182) ~[hibernate-core-5.4.22.Final.jar:5.4.22.Final]
    at org.hibernate.engine.internal.TwoPhaseLoad.initializeEntity(TwoPhaseLoad.java:151) ~[hibernate-core-5.4.22.Final.jar:5.4.22.Final]
    at org.hibernate.loader.Loader.initializeEntitiesAndCollections(Loader.java:1200) ~[hibernate-core-5.4.22.Final.jar:5.4.22.Final]
    at org.hibernate.loader.Loader.processResultSet(Loader.java:1001) ~[hibernate-core-5.4.22.Final.jar:5.4.22.Final]
    at org.hibernate.loader.Loader.doQuery(Loader.java:959) ~[hibernate-core-5.4.22.Final.jar:5.4.22.Final]
    at org.hibernate.loader.Loader.doQueryAndInitializeNonLazyCollections(Loader.java:349) ~[hibernate-core-5.4.22.Final.jar:5.4.22.Final]
    at org.hibernate.loader.Loader.doList(Loader.java:2850) ~[hibernate-core-5.4.22.Final.jar:5.4.22.Final]
    at org.hibernate.loader.Loader.doList(Loader.java:2832) ~[hibernate-core-5.4.22.Final.jar:5.4.22.Final]
    at org.hibernate.loader.Loader.listIgnoreQueryCache(Loader.java:2664) ~[hibernate-core-5.4.22.Final.jar:5.4.22.Final]
    at org.hibernate.loader.Loader.list(Loader.java:2659) ~[hibernate-core-5.4.22.Final.jar:5.4.22.Final]
    at org.hibernate.loader.hql.QueryLoader.list(QueryLoader.java:506) ~[hibernate-core-5.4.22.Final.jar:5.4.22.Final]
    at org.hibernate.hql.internal.ast.QueryTranslatorImpl.list(QueryTranslatorImpl.java:400) ~[hibernate-core-5.4.22.Final.jar:5.4.22.Final]
    at org.hibernate.engine.query.spi.HQLQueryPlan.performlist(HQLQueryPlan.java:219) ~[hibernate-core-5.4.22.Final.jar:5.4.22.Final]
    at org.hibernate.internal.SessionImpl.list(SessionImpl.java:1414) ~[hibernate-core-5.4.22.Final.jar:5.4.22.Final]
    at org.hibernate.query.internal.AbstractProducedQuery.doList(AbstractProducedQuery.java:1565) ~[hibernate-core-5.4.22.Final.jar:5.4.22.Final]
    at org.hibernate.query.internal.AbstractProducedQuery.list(AbstractProducedQuery.java:1533) ~[hibernate-core-5.4.22.Final.jar:5.4.22.Final]
    at org.hibernate.query.internal.AbstractProducedQuery.getSingleResult(AbstractProducedQuery.java:1581) ~[hibernate-core-5.4.22.Final.jar:5.4.22.Final]
    at org.hibernate.query.criteria.internal.compile.CriteriaQueryTypeQueryAdapter.getSingleResult(CriteriaQueryTypeQueryAdapter.java:111) ~[hibernate-core-5.4.22.Final.jar:5.4.22.Final]
    at jdk.internal.reflect.GeneratedMethodAccessor59.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:566) ~[na:na]
    at org.springframework.orm.jpa.SharedEntityManagerCreator$DeferredQueryInvocationHandler.invoke(SharedEntityManagerCreator.java:409) ~[spring-orm-5.2.10.RELEASE.jar:5.2.10.RELEASE]
    at com.sun.proxy.$Proxy133.getSingleResult(UnkNown Source) ~[na:na]
    at org.springframework.data.jpa.repository.query.JpaQueryExecution$SingleEntityExecution.doExecute(JpaQueryExecution.java:196) ~[spring-data-jpa-2.3.5.RELEASE.jar:2.3.5.RELEASE]
    at org.springframework.data.jpa.repository.query.JpaQueryExecution.execute(JpaQueryExecution.java:88) ~[spring-data-jpa-2.3.5.RELEASE.jar:2.3.5.RELEASE]
    at org.springframework.data.jpa.repository.query.AbstractJpaQuery.doExecute(AbstractJpaQuery.java:154) ~[spring-data-jpa-2.3.5.RELEASE.jar:2.3.5.RELEASE]
    at org.springframework.data.jpa.repository.query.AbstractJpaQuery.execute(AbstractJpaQuery.java:142) ~[spring-data-jpa-2.3.5.RELEASE.jar:2.3.5.RELEASE]
    at org.springframework.data.repository.core.support.QueryExecutorMethodInterceptor$QueryMethodInvoker.invoke(QueryExecutorMethodInterceptor.java:195) ~[spring-data-commons-2.3.5.RELEASE.jar:2.3.5.RELEASE]
    at org.springframework.data.repository.core.support.QueryExecutorMethodInterceptor.doInvoke(QueryExecutorMethodInterceptor.java:152) ~[spring-data-commons-2.3.5.RELEASE.jar:2.3.5.RELEASE]
    at org.springframework.data.repository.core.support.QueryExecutorMethodInterceptor.invoke(QueryExecutorMethodInterceptor.java:130) ~[spring-data-commons-2.3.5.RELEASE.jar:2.3.5.RELEASE]
    at org.springframework.aop.framework.ReflectiveMethodInvocation.proceed(ReflectiveMethodInvocation.java:186) ~[spring-aop-5.2.10.RELEASE.jar:5.2.10.RELEASE]
    at org.springframework.data.projection.DefaultMethodInvokingMethodInterceptor.invoke(DefaultMethodInvokingMethodInterceptor.java:80) ~[spring-data-commons-2.3.5.RELEASE.jar:2.3.5.RELEASE]
    at org.springframework.aop.framework.ReflectiveMethodInvocation.proceed(ReflectiveMethodInvocation.java:186) ~[spring-aop-5.2.10.RELEASE.jar:5.2.10.RELEASE]
    at org.springframework.transaction.interceptor.TransactionAspectSupport.invokeWithinTransaction(TransactionAspectSupport.java:367) ~[spring-tx-5.2.10.RELEASE.jar:5.2.10.RELEASE]
    at org.springframework.transaction.interceptor.TransactionInterceptor.invoke(TransactionInterceptor.java:118) ~[spring-tx-5.2.10.RELEASE.jar:5.2.10.RELEASE]
    at org.springframework.aop.framework.ReflectiveMethodInvocation.proceed(ReflectiveMethodInvocation.java:186) ~[spring-aop-5.2.10.RELEASE.jar:5.2.10.RELEASE]
    at org.springframework.dao.support.PersistenceExceptionTranslationInterceptor.invoke(PersistenceExceptionTranslationInterceptor.java:139) ~[spring-tx-5.2.10.RELEASE.jar:5.2.10.RELEASE]
    ... 36 common frames omitted
Caused by: java.lang.IllegalArgumentException: Can not set java.lang.String field sg.com.ctc.timesheet.model.Project.projectId to java.lang.Long
    at java.base/jdk.internal.reflect.UnsafeFieldAccessorImpl.throwSetIllegalArgumentException(UnsafeFieldAccessorImpl.java:167) ~[na:na]
    at java.base/jdk.internal.reflect.UnsafeFieldAccessorImpl.throwSetIllegalArgumentException(UnsafeFieldAccessorImpl.java:171) ~[na:na]
    at java.base/jdk.internal.reflect.UnsafeFieldAccessorImpl.ensureObj(UnsafeFieldAccessorImpl.java:58) ~[na:na]
    at java.base/jdk.internal.reflect.UnsafeObjectFieldAccessorImpl.get(UnsafeObjectFieldAccessorImpl.java:36) ~[na:na]
    at java.base/java.lang.reflect.Field.get(Field.java:418) ~[na:na]
    at org.hibernate.property.access.spi.GetterFieldImpl.get(GetterFieldImpl.java:71) ~[hibernate-core-5.4.22.Final.jar:5.4.22.Final]
    ... 82 common frames omitted


Process finished with exit code 1

感谢是否有人可以帮助我了解 Project-SalesOrder 映射有什么问题？ 请询问您是否需要更多信息。

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