我有合作伙伴活动，合作伙伴可以有许多名为PartnerRoles的角色。合作伙伴角色之一可以是会员。已使用JPA继承映射。尝试获取伙伴时，抛出以下异常。 Spring Data JPA CRUD Repository用于执行CRUD操作。创建和更新没有问题。
堆栈追踪：
org.springframework.orm.jpa.JpaSystemException: could not get a field value by reflection getter of com.tracebucket.partner.domain.PartnerRole.id; nested exception is org.hibernate.PropertyAccessException: could not get a field value by reflection getter of com.tracebucket.partner.domain.PartnerRole.id
at org.springframework.orm.jpa.vendor.HibernateJpaDialect.convertHibernateAccessException(HibernateJpaDialect.java:303)
at org.springframework.orm.jpa.vendor.HibernateJpaDialect.translateExceptionIfPossible(HibernateJpaDialect.java:214)
at org.springframework.orm.jpa.AbstractEntityManagerFactoryBean.translateExceptionIfPossible(AbstractEntityManagerFactoryBean.java:417)
at org.springframework.dao.support.ChainedPersistenceExceptionTranslator.translateExceptionIfPossible(ChainedPersistenceExceptionTranslator.java:59)
at org.springframework.dao.support.DataAccessUtils.translateIfNecessary(DataAccessUtils.java:213)
at org.springframework.dao.support.PersistenceExceptionTranslationInterceptor.invoke(PersistenceExceptionTranslationInterceptor.java:147)
at org.springframework.aop.framework.ReflectiveMethodInvocation.proceed(ReflectiveMethodInvocation.java:179)
at org.springframework.data.jpa.repository.support.CrudMethodMetadataPostProcessor$CrudMethodMetadataPopulatingMethodIntercceptor.invoke(CrudMethodMetadataPostProcessor.java:122)
at org.springframework.aop.framework.ReflectiveMethodInvocation.proceed(ReflectiveMethodInvocation.java:179)
at org.springframework.aop.interceptor.ExposeInvocationInterceptor.invoke(ExposeInvocationInterceptor.java:92)
at org.springframework.aop.framework.ReflectiveMethodInvocation.proceed(ReflectiveMethodInvocation.java:179)
at org.springframework.aop.framework.JdkDynamicAopProxy.invoke(JdkDynamicAopProxy.java:207)
at com.sun.proxy.$Proxy71.findOne(Unknown Source)
at com.tracebucket.crm.test.repository.PartnerRepositoryTest.testFindById(PartnerRepositoryTest.java:65)
at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:62)
at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
at org.junit.runners.model.FrameworkMethod$1.runReflectiveCall(FrameworkMethod.java:50)
at org.junit.internal.runners.model.ReflectiveCallable.run(ReflectiveCallable.java:12)
at org.junit.runners.model.FrameworkMethod.invokeExplosively(FrameworkMethod.java:47)
at org.junit.internal.runners.statements.InvokeMethod.evaluate(InvokeMethod.java:17)
at org.junit.internal.runners.statements.RunBefores.evaluate(RunBefores.java:26)
at org.springframework.test.context.junit4.statements.RunBeforeTestMethodCallbacks.evaluate(RunBeforeTestMethodCallbacks.java:73)
at org.junit.internal.runners.statements.RunAfters.evaluate(RunAfters.java:27)
at org.springframework.test.context.junit4.statements.RunAfterTestMethodCallbacks.evaluate(RunAfterTestMethodCallbacks.java:82)
at org.springframework.test.context.junit4.statements.SpringRepeat.evaluate(SpringRepeat.java:73)
at org.junit.runners.ParentRunner.runLeaf(ParentRunner.java:325)
at org.springframework.test.context.junit4.SpringJUnit4ClassRunner.runChild(SpringJUnit4ClassRunner.java:217)
at org.springframework.test.context.junit4.SpringJUnit4ClassRunner.runChild(SpringJUnit4ClassRunner.java:83)
at org.junit.runners.ParentRunner$3.run(ParentRunner.java:290)
at org.junit.runners.ParentRunner$1.schedule(ParentRunner.java:71)
at org.junit.runners.ParentRunner.runChildren(ParentRunner.java:288)
at org.junit.runners.ParentRunner.access$000(ParentRunner.java:58)
at org.junit.runners.ParentRunner$2.evaluate(ParentRunner.java:268)
at org.springframework.test.context.junit4.statements.RunBeforeTestClassCallbacks.evaluate(RunBeforeTestClassCallbacks.java:61)
at org.springframework.test.context.junit4.statements.RunAfterTestClassCallbacks.evaluate(RunAfterTestClassCallbacks.java:68)
at org.junit.runners.ParentRunner.run(ParentRunner.java:363)
at org.springframework.test.context.junit4.SpringJUnit4ClassRunner.run(SpringJUnit4ClassRunner.java:163)
at org.junit.runner.JUnitCore.run(JUnitCore.java:137)
at com.intellij.rt.execution.junit.JUnitStarter.main(JUnitStarter.java:67)
Caused by: org.hibernate.PropertyAccessException: could not get a field value by reflection getter of com.tracebucket.partner.domain.PartnerRole.id
at org.hibernate.property.DirectPropertyAccessor$DirectGetter.get(DirectPropertyAccessor.java:60)
at org.hibernate.tuple.component.AbstractComponentTuplizer.getPropertyValue(AbstractComponentTuplizer.java:76)
at org.hibernate.type.ComponentType.getPropertyValue(ComponentType.java:414)
at org.hibernate.type.ComponentType.getHashCode(ComponentType.java:255)
at org.hibernate.engine.spi.CollectionKey.generateHashCode(CollectionKey.java:81)
at org.hibernate.engine.spi.CollectionKey.<init>(CollectionKey.java:75)
at org.hibernate.engine.spi.CollectionKey.<init>(CollectionKey.java:60)
at org.hibernate.engine.loading.internal.CollectionLoadContext.getLoadingCollection(CollectionLoadContext.java:112)
at org.hibernate.loader.plan.exec.process.internal.CollectionReferenceInitializerImpl.finishUpRow(CollectionReferenceInitializerImpl.java:120)
at org.hibernate.loader.plan.exec.process.internal.AbstractRowReader.readRow(AbstractRowReader.java:125)
at org.hibernate.loader.plan.exec.internal.EntityLoadQueryDetails$EntityLoaderRowReader.readRow(EntityLoadQueryDetails.java:255)
at org.hibernate.loader.plan.exec.process.internal.ResultSetProcessorImpl.extractResults(ResultSetProcessorImpl.java:129)
at org.hibernate.loader.plan.exec.internal.AbstractLoadPlanBasedLoader.executeLoad(AbstractLoadPlanBasedLoader.java:138)
at org.hibernate.loader.plan.exec.internal.AbstractLoadPlanBasedLoader.executeLoad(AbstractLoadPlanBasedLoader.java:102)
at org.hibernate.loader.entity.plan.AbstractLoadPlanBasedEntityLoader.load(AbstractLoadPlanBasedEntityLoader.java:186)
at org.hibernate.persister.entity.AbstractEntityPersister.load(AbstractEntityPersister.java:4126)
at org.hibernate.event.internal.DefaultLoadEventListener.loadFromDatasource(DefaultLoadEventListener.java:503)
at org.hibernate.event.internal.DefaultLoadEventListener.doLoad(DefaultLoadEventListener.java:468)
at org.hibernate.event.internal.DefaultLoadEventListener.load(DefaultLoadEventListener.java:213)
at org.hibernate.event.internal.DefaultLoadEventListener.proxyOrLoad(DefaultLoadEventListener.java:275)
at org.hibernate.event.internal.DefaultLoadEventListener.onLoad(DefaultLoadEventListener.java:151)
at org.hibernate.internal.SessionImpl.fireLoad(SessionImpl.java:1070)
at org.hibernate.internal.SessionImpl.access$2000(SessionImpl.java:176)
at org.hibernate.internal.SessionImpl$IdentifierLoadAccessImpl.load(SessionImpl.java:2551)
at org.hibernate.internal.SessionImpl.get(SessionImpl.java:955)
at org.hibernate.jpa.spi.AbstractEntityManagerImpl.find(AbstractEntityManagerImpl.java:1110)
at org.hibernate.jpa.spi.AbstractEntityManagerImpl.find(AbstractEntityManagerImpl.java:1074)
at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:62)
at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
at org.springframework.orm.jpa.SharedEntityManagerCreator$SharedEntityManagerInvocationHandler.invoke(SharedEntityManagerCreator.java:291)
at com.sun.proxy.$Proxy67.find(Unknown Source)
at org.springframework.data.jpa.repository.support.SimpleJpaRepository.findOne(SimpleJpaRepository.java:227)
at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:62)
at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
at org.springframework.data.repository.core.support.RepositoryFactorySupport$QueryExecutorMethodInterceptor.executeMethodOn(RepositoryFactorySupport.java:442)
at org.springframework.data.repository.core.support.RepositoryFactorySupport$QueryExecutorMethodInterceptor.doInvoke(RepositoryFactorySupport.java:427)
at org.springframework.data.repository.core.support.RepositoryFactorySupport$QueryExecutorMethodInterceptor.invoke(RepositoryFactorySupport.java:381)
at org.springframework.aop.framework.ReflectiveMethodInvocation.proceed(ReflectiveMethodInvocation.java:179)
at org.springframework.data.repository.core.support.RepositoryFactorySupport$DefaultMethodInvokingMethodInterceptor.invoke(RepositoryFactorySupport.java:512)
at org.springframework.aop.framework.ReflectiveMethodInvocation.proceed(ReflectiveMethodInvocation.java:179)
at org.springframework.transaction.interceptor.TransactionInterceptor$1.proceedWithInvocation(TransactionInterceptor.java:99)
at org.springframework.transaction.interceptor.TransactionAspectSupport.invokeWithinTransaction(TransactionAspectSupport.java:267)
at org.springframework.transaction.interceptor.TransactionInterceptor.invoke(TransactionInterceptor.java:96)
at org.springframework.aop.framework.ReflectiveMethodInvocation.proceed(ReflectiveMethodInvocation.java:179)
at org.springframework.dao.support.PersistenceExceptionTranslationInterceptor.invoke(PersistenceExceptionTranslationInterceptor.java:136)
... 37 more
Caused by: java.lang.IllegalArgumentException: Can not set java.lang.Long field com.tracebucket.infrastructure.ddd.domain.BaseEntity.id to java.lang.Long
at sun.reflect.UnsafeFieldAccessorImpl.throwSetIllegalArgumentException(UnsafeFieldAccessorImpl.java:167)
at sun.reflect.UnsafeFieldAccessorImpl.throwSetIllegalArgumentException(UnsafeFieldAccessorImpl.java:171)
at sun.reflect.UnsafeFieldAccessorImpl.ensureObj(UnsafeFieldAccessorImpl.java:58)
at sun.reflect.UnsafeObjectFieldAccessorImpl.get(UnsafeObjectFieldAccessorImpl.java:36)
at java.lang.reflect.Field.get(Field.java:387)
at org.hibernate.property.DirectPropertyAccessor$DirectGetter.get(DirectPropertyAccessor.java:57)
... 85 more
Java类：
@Entity
@Table(name = "PARTNER")
public class Partner {
@Id
@GeneratedValue(strategy = GenerationType.IDENTITY)
@Basic(optional = false)
@Column(name = "ID", nullable = false, columnDefinition = "BIGINT UNSIGNED")
private Long id;
@Column(name = "TITLE", nullable = false)
@Basic(fetch = FetchType.EAGER)
protected String title;
@Column(name = "IMAGE")
@Basic(fetch = FetchType.EAGER)
protected String image;
@Column(name = "WEBSITE")
@Basic(fetch = FetchType.EAGER)
protected String website;
@Column(name = "PARTNER_CATEGORY", nullable = false, columnDefinition = "ENUM('INDIVIDUAL', 'GROUP', 'ORGANIZATION') default 'ORGANIZATION'")
@Enumerated(EnumType.STRING)
@Basic(fetch = FetchType.EAGER)
protected PartnerCategory partnerCategory;
@ManyToOne(fetch=FetchType.LAZY)
@JoinColumn(name="OWNER_ID")
private Organization owner;
@OneToMany(cascade = CascadeType.ALL, orphanRemoval = true, fetch = FetchType.EAGER)
@JoinColumn(name = "PARTNER__ID")
protected Set<PartnerRole> partnerRoles = new HashSet<PartnerRole>(0);
}
@Entity
@Table(name = "PARTNER_ROLE")
@Inheritance(strategy = InheritanceType.JOINED)
@DiscriminatorColumn(name = "PARTNER_ROLE", discriminatorType = DiscriminatorType.STRING)
public abstract class PartnerRole extends BaseEntity implements Serializable {
@Column(name = "NAME")
@Basic(fetch = FetchType.EAGER)
private String name;
@ElementCollection
@JoinTable(name = "PARTNER_ADDRESS", joinColumns = @JoinColumn(name = "PARTNER__ID"))
private Set<Address> addresses = new HashSet<Address>(0);
}
@Entity(name = "PARTNER_AFFILIATE")
@Table(name = "PARTNER_AFFILIATE")
@PrimaryKeyJoinColumn(name="PARTNER_ROLE__ID")
@DiscriminatorValue(value = "PARTNER_AFFILIATE")
public class Affiliate extends PartnerRole implements Serializable {
private static final String simpleName = "Affiliate";
@Column(name = "BUSINESS_NAME")
@Basic(fetch = FetchType.EAGER)
private String businessName;
@Column(name = "CODE")
@Basic(fetch = FetchType.EAGER)
private String code;
@Column(name = "DATE_OF_INCORPORATION")
@Basic(fetch = FetchType.EAGER)
private Date dateOfIncorporation;
@Column(name = "LOGO")
@Basic(fetch = FetchType.EAGER)
private String logo;
@Column(name = "WEBSITE")
@Basic(fetch = FetchType.EAGER)
private String website;
@OneToMany(cascade = CascadeType.ALL, fetch = FetchType.EAGER, orphanRemoval = true)
@JoinTable(
name="AFFILIATE_PERSON",
joinColumns={ @JoinColumn(name="AFFILIATE__ID", referencedColumnName="ID") },
inverseJoinColumns={ @JoinColumn(name="PERSON__ID", referencedColumnName="ID", unique=false) }
)
private Set<Person> persons = new HashSet<Person>(0);
}
@RunWith(SpringJUnit4ClassRunner.class)
@ContextConfiguration(classes = {ApplicationTestConfig.class, JPATestConfig.class})
public class PartnerRepositoryTest {
@Autowired
private PartnerRepository partnerRepository;
@Autowired
private OrganizationRepository organizationRepository;
private Partner partner = null;
private Organization organization = null;
@Before
public void setUp() throws Exception{
}
private void createPartner() throws Exception{
partner = PartnerFixture.allRoles();
//organization = organizationRepository.save(partner.getOwner());
partner = partnerRepository.save(partner);
}
@Test
public void testUpdate() throws Exception {
createPartner();
partner.getPartnerRoles().clear();
partner = partnerRepository.save(partner);
Assert.assertEquals(0, partner.getPartnerRoles().size());
partner.getPartnerRoles().add(CustomerFixture.standardCustomer());
partner = partnerRepository.save(partner);
Assert.assertEquals(1, partner.getPartnerRoles().size());
}
@Test
public void testFindById() throws Exception {
createPartner();
partner = partnerRepository.findOne(partner.getAggregateId());
Assert.assertNotNull(partner);
}
@Test
public void testCreate() throws Exception{
createPartner();
Assert.assertNotNull(partner.getAggregateId());
}
}
@MappedSuperclass
public abstract class BaseEntity {
@Id
@GeneratedValue(strategy = GenerationType.IDENTITY)
@Column(name = "ID")
private Long id;
public BaseEntity(){
}
public Long getId() {
return id;
}
public void setId(Long id) {
this.id = id;
}
}
答案 0 :(得分：1)
对于我的团队，我们找到答案为＆＃34;将@Transactional添加到测试用例＆＃34;。
这是根据上面的@ SSmd（有点埋葬）评论。