Hibernate和Spring with Hibernate Annotations =“Unknown Entity ...”

我有一个Spring和Hibernate项目，我想在我的类中使用Hibernate Annotations（@Entitity，@MappedSuperClass）。Hibernate和Spring with Hibernate Annotations =“Unknown Entity ...”

我有以下休眠-config.xml中：

<beans xmlns="http://www.springframework.org/schema/beans" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" 
xsi:schemaLocation="http://www.springframework.org/schema/beans http://www.springframework.org/schema/beans/spring-beans.xsd"> 

<bean id="dataSource" class="org.springframework.jdbc.datasource.DriverManagerDataSource"> 
    <property name="driverClassName" value="org.h2.Driver" /> 
    <property name="url" value="jdbc:h2:mem:test_iep;USER=root;PASSWORD=root" /> 
    <property name="username" value="root" /> 
    <property name="password" value="root" /> 
</bean> 

<bean id="sessionFactory" class="org.springframework.orm.hibernate3.annotation.AnnotationSessionFactoryBean"> 
    <property name="dataSource" ref="dataSource" /> 
    <property name="packagesToScan"> 
     <list> 
      <value>ch.foo.enterpriseportal</value> 
     </list> 
    </property> 

    <property name="hibernateProperties"> 
     <value> 
      hibernate.dialect=org.hibernate.dialect.H2Dialect 
      hibernate.hbm2ddl.auto=create 
     </value> 
    </property> 

    <property name="configurationClass"> 
     <value>org.hibernate.cfg.AnnotationConfiguration</value> 
    </property> 
</bean>

我一个人级，我想坚持：

import org.hibernate.annotations.Entity; 

    @Entity 
    public class Person extends Party { 

private String firstName; 

public String getFirstName() { 
    return firstName; 
} 

public void setFirstName(String firstName) { 
    this.firstName = firstName; 
} 
}

如果我试图坚持的人─对象，我得到这堆栈跟踪：

org.springframework.orm.hibernate3.HibernateSystemException: Unknown entity: ch.foo.enterpriseportal.domain.entities.party.Person; nested exception is org.hibernate.MappingException: Unknown entity: ch.foo.enterpriseportal.domain.entities.party.Person 
    at org.springframework.orm.hibernate3.SessionFactoryUtils.convertHibernateAccessException(SessionFactoryUtils.java:679) 
    at org.springframework.orm.hibernate3.HibernateAccessor.convertHibernateAccessException(HibernateAccessor.java:412) 
    at org.springframework.orm.hibernate3.HibernateTemplate.doExecute(HibernateTemplate.java:411) 
    at org.springframework.orm.hibernate3.HibernateTemplate.executeWithNativeSession(HibernateTemplate.java:374) 
    at org.springframework.orm.hibernate3.HibernateTemplate.persist(HibernateTemplate.java:793) 
    at ch.foo.enterpriseportal.domain.HibernateSetupIT.testHibernateSetup(HibernateSetupIT.java:34) 
    at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method) 
    at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:39) 
    at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:25) 
    at java.lang.reflect.Method.invoke(Method.java:597) 
    at org.junit.runners.model.FrameworkMethod$1.runReflectiveCall(FrameworkMethod.java:45) 
    at org.junit.internal.runners.model.ReflectiveCallable.run(ReflectiveCallable.java:15) 
    at org.junit.runners.model.FrameworkMethod.invokeExplosively(FrameworkMethod.java:42) 
    at org.junit.internal.runners.statements.InvokeMethod.evaluate(InvokeMethod.java:20) 
    at org.junit.internal.runners.statements.RunBefores.evaluate(RunBefores.java:28) 
    at org.springframework.test.context.junit4.statements.RunBeforeTestMethodCallbacks.evaluate(RunBeforeTestMethodCallbacks.java:74) 
    at org.springframework.test.context.junit4.statements.RunAfterTestMethodCallbacks.evaluate(RunAfterTestMethodCallbacks.java:82) 
    at org.springframework.test.context.junit4.statements.SpringRepeat.evaluate(SpringRepeat.java:72) 
    at org.springframework.test.context.junit4.SpringJUnit4ClassRunner.runChild(SpringJUnit4ClassRunner.java:231) 
    at org.junit.runners.BlockJUnit4ClassRunner.runChild(BlockJUnit4ClassRunner.java:47) 
    at org.junit.runners.ParentRunner$3.run(ParentRunner.java:231) 
    at org.junit.runners.ParentRunner$1.schedule(ParentRunner.java:60) 
    at org.junit.runners.ParentRunner.runChildren(ParentRunner.java:229) 
    at org.junit.runners.ParentRunner.access$000(ParentRunner.java:50) 
    at org.junit.runners.ParentRunner$2.evaluate(ParentRunner.java:222) 
    at org.springframework.test.context.junit4.statements.RunBeforeTestClassCallbacks.evaluate(RunBeforeTestClassCallbacks.java:61) 
    at org.springframework.test.context.junit4.statements.RunAfterTestClassCallbacks.evaluate(RunAfterTestClassCallbacks.java:70) 
    at org.junit.runners.ParentRunner.run(ParentRunner.java:300) 
    at org.springframework.test.context.junit4.SpringJUnit4ClassRunner.run(SpringJUnit4ClassRunner.java:174) 
    at org.eclipse.jdt.internal.junit4.runner.JUnit4TestReference.run(JUnit4TestReference.java:50) 
    at org.eclipse.jdt.internal.junit.runner.TestExecution.run(TestExecution.java:38) 
    at org.eclipse.jdt.internal.junit.runner.RemoteTestRunner.runTests(RemoteTestRunner.java:467) 
    at org.eclipse.jdt.internal.junit.runner.RemoteTestRunner.runTests(RemoteTestRunner.java:683) 
    at org.eclipse.jdt.internal.junit.runner.RemoteTestRunner.run(RemoteTestRunner.java:390) 
    at org.eclipse.jdt.internal.junit.runner.RemoteTestRunner.main(RemoteTestRunner.java:197) 
Caused by: org.hibernate.MappingException: Unknown entity: ch.foo.enterpriseportal.domain.entities.party.Person 
    at org.hibernate.impl.SessionFactoryImpl.getEntityPersister(SessionFactoryImpl.java:693) 
    at org.hibernate.impl.SessionImpl.getEntityPersister(SessionImpl.java:1494) 
    at org.hibernate.engine.ForeignKeys.isTransient(ForeignKeys.java:202) 
    at org.hibernate.event.def.AbstractSaveEventListener.getEntityState(AbstractSaveEventListener.java:531) 
    at org.hibernate.event.def.DefaultPersistEventListener.onPersist(DefaultPersistEventListener.java:102) 
    at org.hibernate.event.def.DefaultPersistEventListener.onPersist(DefaultPersistEventListener.java:61) 
    at org.hibernate.impl.SessionImpl.firePersist(SessionImpl.java:808) 
    at org.hibernate.impl.SessionImpl.persist(SessionImpl.java:782) 
    at org.hibernate.impl.SessionImpl.persist(SessionImpl.java:786) 
    at org.springframework.orm.hibernate3.HibernateTemplate$21.doInHibernate(HibernateTemplate.java:796) 
    at org.springframework.orm.hibernate3.HibernateTemplate.doExecute(HibernateTemplate.java:406) 
    ... 32 more

我真的不知道问题出在哪里，但我认为这可能是一个配置问题。

任何人都可以帮忙吗？

来源

2011-10-18 L.Butz

使用javax.persistence.Entity注释而不是org.hibernate.annotations.Entity。 org.hibernate.annotations.Entity仅向已注释了javax.persistence.Entity的实体提供了一些休眠特定功能。

如果你真的想使用Hibernate @Entity注释，使用其FQN这样可以很清楚它的发动机相关的注释：

import javax.persistence.Entity; 

@Entity 
@org.hibernate.annotations.Entity(...) 
public class Person extends Party { 
    //... 
}

这些问题可能对你有用：

来源

2011-10-18 11:34:54

Hibernate和Spring with Hibernate Annotations =“Unknown Entity ...”

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