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“找不到持久化单元”错误

javahibernatespringjpa
18

我遇到了以下错误：

org.springframework.beans.factory.BeanCreationException: Error creating bean with name 'org.springframework.transaction.interceptor.TransactionAttributeSourceAdvisor': Cannot create inner bean '(inner bean)' while setting bean property 'transactionInterceptor'; nested exception is org.springframework.beans.factory.BeanCreationException: Error creating bean with name '(inner bean)': Cannot resolve reference to bean 'txManager' while setting bean property 'transactionManager'; nested exception is org.springframework.beans.factory.BeanCreationException: Error creating bean with name 'txManager' defined in class path resource [persistenceLayer.xml]: Cannot resolve reference to bean 'entityManagerFactory' while setting bean property 'entityManagerFactory'; nested exception is org.springframework.beans.factory.BeanCreationException: Error creating bean with name 'entityManagerFactory' defined in class path resource [persistenceLayer.xml]: Invocation of init method failed; nested exception is java.lang.IllegalArgumentException: No persistence unit with name 'CounterpartContacts' found
Caused by: org.springframework.beans.factory.BeanCreationException: Error creating bean with name '(inner bean)': Cannot resolve reference to bean 'txManager' while setting bean property 'transactionManager'; nested exception is org.springframework.beans.factory.BeanCreationException: Error creating bean with name 'txManager' defined in class path resource [persistenceLayer.xml]: Cannot resolve reference to bean 'entityManagerFactory' while setting bean property 'entityManagerFactory'; nested exception is org.springframework.beans.factory.BeanCreationException: Error creating bean with name 'entityManagerFactory' defined in class path resource [persistenceLayer.xml]: Invocation of init method failed; nested exception is java.lang.IllegalArgumentException: No persistence unit with name 'CounterpartContacts' found
Caused by: org.springframework.beans.factory.BeanCreationException: Error creating bean with name 'txManager' defined in class path resource [persistenceLayer.xml]: Cannot resolve reference to bean 'entityManagerFactory' while setting bean property 'entityManagerFactory'; nested exception is org.springframework.beans.factory.BeanCreationException: Error creating bean with name 'entityManagerFactory' defined in class path resource [persistenceLayer.xml]: Invocation of init method failed; nested exception is java.lang.IllegalArgumentException: No persistence unit with name 'CounterpartContacts' found
Caused by: org.springframework.beans.factory.BeanCreationException: Error creating bean with name 'entityManagerFactory' defined in class path resource [persistenceLayer.xml]: Invocation of init method failed; nested exception is java.lang.IllegalArgumentException: No persistence unit with name 'CounterpartContacts' found
Caused by: java.lang.IllegalArgumentException: No persistence unit with name 'CounterpartContacts' found
    at org.springframework.orm.jpa.persistenceunit.DefaultPersistenceUnitManager.obtainPersistenceUnitInfo(DefaultPersistenceUnitManager.java:337)
    at org.springframework.orm.jpa.LocalContainerEntityManagerFactoryBean.determinePersistenceUnitInfo(LocalContainerEntityManagerFactoryBean.java:219)
    at org.springframework.orm.jpa.LocalContainerEntityManagerFactoryBean.createNativeEntityManagerFactory(LocalContainerEntityManagerFactoryBean.java:185)
    at org.springframework.orm.jpa.AbstractEntityManagerFactoryBean.afterPropertiesSet(AbstractEntityManagerFactoryBean.java:237)
    at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.invokeInitMethods(AbstractAutowireCapableBeanFactory.java:1062)
    at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.initializeBean(AbstractAutowireCapableBeanFactory.java:1029)
    at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.createBean(AbstractAutowireCapableBeanFactory.java:420)
    at org.springframework.beans.factory.support.AbstractBeanFactory$1.getObject(AbstractBeanFactory.java:245)
    at org.springframework.beans.factory.support.DefaultSingletonBeanRegistry.getSingleton(DefaultSingletonBeanRegistry.java:141)
    at org.springframework.beans.factory.support.AbstractBeanFactory.getBean(AbstractBeanFactory.java:242)
    at org.springframework.beans.factory.support.AbstractBeanFactory.getBean(AbstractBeanFactory.java:156)
    at org.springframework.beans.factory.support.BeanDefinitionValueResolver.resolveReference(BeanDefinitionValueResolver.java:246)
    at org.springframework.beans.factory.support.BeanDefinitionValueResolver.resolveValueIfNecessary(BeanDefinitionValueResolver.java:128)
    at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.applyPropertyValues(AbstractAutowireCapableBeanFactory.java:955)
    at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.populateBean(AbstractAutowireCapableBeanFactory.java:729)
    at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.createBean(AbstractAutowireCapableBeanFactory.java:416)
    at org.springframework.beans.factory.support.AbstractBeanFactory$1.getObject(AbstractBeanFactory.java:245)
    at org.springframework.beans.factory.support.DefaultSingletonBeanRegistry.getSingleton(DefaultSingletonBeanRegistry.java:141)
    at org.springframework.beans.factory.support.AbstractBeanFactory.getBean(AbstractBeanFactory.java:242)
    at org.springframework.beans.factory.support.AbstractBeanFactory.getBean(AbstractBeanFactory.java:156)
    at org.springframework.beans.factory.support.BeanDefinitionValueResolver.resolveReference(BeanDefinitionValueResolver.java:246)
    at org.springframework.beans.factory.support.BeanDefinitionValueResolver.resolveValueIfNecessary(BeanDefinitionValueResolver.java:128)
    at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.applyPropertyValues(AbstractAutowireCapableBeanFactory.java:955)
    at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.populateBean(AbstractAutowireCapableBeanFactory.java:729)
    at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.createBean(AbstractAutowireCapableBeanFactory.java:416)
    at org.springframework.beans.factory.support.BeanDefinitionValueResolver.resolveInnerBeanDefinition(BeanDefinitionValueResolver.java:198)
    at org.springframework.beans.factory.support.BeanDefinitionValueResolver.resolveValueIfNecessary(BeanDefinitionValueResolver.java:116)
    at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.applyPropertyValues(AbstractAutowireCapableBeanFactory.java:955)
    at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.populateBean(AbstractAutowireCapableBeanFactory.java:729)
    at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.createBean(AbstractAutowireCapableBeanFactory.java:416)
    at org.springframework.beans.factory.support.AbstractBeanFactory$1.getObject(AbstractBeanFactory.java:245)
    at org.springframework.beans.factory.support.DefaultSingletonBeanRegistry.getSingleton(DefaultSingletonBeanRegistry.java:141)
    at org.springframework.beans.factory.support.AbstractBeanFactory.getBean(AbstractBeanFactory.java:242)
    at org.springframework.beans.factory.support.AbstractBeanFactory.getBean(AbstractBeanFactory.java:156)
    at org.springframework.aop.framework.autoproxy.AbstractAdvisorAutoProxyCreator.findCandidateAdvisors(AbstractAdvisorAutoProxyCreator.java:102)
    at org.springframework.aop.framework.autoproxy.AbstractAdvisorAutoProxyCreator.findEligibleAdvisors(AbstractAdvisorAutoProxyCreator.java:68)
    at org.springframework.aop.framework.autoproxy.AbstractAdvisorAutoProxyCreator.getAdvicesAndAdvisorsForBean(AbstractAdvisorAutoProxyCreator.java:54)
    at org.springframework.aop.framework.autoproxy.AbstractAutoProxyCreator.postProcessAfterInitialization(AbstractAutoProxyCreator.java:247)
    at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.applyBeanPostProcessorsAfterInitialization(AbstractAutowireCapableBeanFactory.java:311)
    at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.initializeBean(AbstractAutowireCapableBeanFactory.java:1038)
    at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.createBean(AbstractAutowireCapableBeanFactory.java:420)
    at org.springframework.beans.factory.support.AbstractBeanFactory$1.getObject(AbstractBeanFactory.java:245)
    at org.springframework.beans.factory.support.DefaultSingletonBeanRegistry.getSingleton(DefaultSingletonBeanRegistry.java:141)
    at org.springframework.beans.factory.support.AbstractBeanFactory.getBean(AbstractBeanFactory.java:242)
    at org.springframework.beans.factory.support.AbstractBeanFactory.getBean(AbstractBeanFactory.java:156)
    at org.springframework.beans.factory.support.DefaultListableBeanFactory.preInstantiateSingletons(DefaultListableBeanFactory.java:290)
    at org.springframework.context.support.AbstractApplicationContext.refresh(AbstractApplicationContext.java:348)
    at org.springframework.context.support.ClassPathXmlApplicationContext.<init>(ClassPathXmlApplicationContext.java:92)
    at org.springframework.context.support.ClassPathXmlApplicationContext.<init>(ClassPathXmlApplicationContext.java:77)
    at com.apollo.counterpartcontacts.service.PersistenceManagerTest.beforeClass(PersistenceManagerTest.java:43)
    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.testng.internal.MethodInvocationHelper.invokeMethod(MethodInvocationHelper.java:80)
    at org.testng.internal.Invoker.invokeConfigurationMethod(Invoker.java:537)
    at org.testng.internal.Invoker.invokeConfigurations(Invoker.java:206)
    at org.testng.internal.Invoker.invokeConfigurations(Invoker.java:132)
    at org.testng.internal.TestMethodWorker.invokeBeforeClassMethods(TestMethodWorker.java:173)
    at org.testng.internal.TestMethodWorker.run(TestMethodWorker.java:105)
    at org.testng.TestRunner.runWorkers(TestRunner.java:1182)
    at org.testng.TestRunner.privateRun(TestRunner.java:761)
    at org.testng.TestRunner.run(TestRunner.java:612)
    at org.testng.SuiteRunner.runTest(SuiteRunner.java:335)
    at org.testng.SuiteRunner.runSequentially(SuiteRunner.java:330)
    at org.testng.SuiteRunner.privateRun(SuiteRunner.java:292)
    at org.testng.SuiteRunner.run(SuiteRunner.java:241)
    at org.testng.SuiteRunnerWorker.runSuite(SuiteRunnerWorker.java:52)
    at org.testng.SuiteRunnerWorker.run(SuiteRunnerWorker.java:86)
    at org.testng.TestNG.runSuitesSequentially(TestNG.java:1169)
    at org.testng.TestNG.runSuitesLocally(TestNG.java:1094)
    at org.testng.TestNG.run(TestNG.java:1006)
    at org.testng.remote.RemoteTestNG.run(RemoteTestNG.java:107)
    at org.testng.remote.RemoteTestNG.initAndRun(RemoteTestNG.java:199)
    at org.testng.remote.RemoteTestNG.main(RemoteTestNG.java:170)

这是我的persistence.xml文件:

<?xml version="1.0" encoding="UTF-8"?>
<persistence version="2.0" xmlns="http://java.sun.com/xml/ns/persistence" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xsi:schemaLocation="http://java.sun.com/xml/ns/persistence http://java.sun.com/xml/ns/persistence/persistence_2_0.xsd">
    <persistence-unit name="CounterpartContacts">
        <jta-data-source>java:/comp/env/jdbc/CounterpartContact</jta-data-source> 
        <class>com.counterpartcontacts.entity.AgentContact</class>
        <class>com.counterpartcontacts.entity.SecurityContact</class>
        <class>com.counterpartcontacts.entity.Bank</class>
        <properties>
            <property name="hibernate.dialect" value="org.hibernate.dialect.SQLServerDialect"/>
        </properties>
    </persistence-unit>
</persistence>

这是我的persistenceLayer.xml文件：

<?xml version="1.0" encoding="UTF-8"?>
<beans xmlns="http://www.springframework.org/schema/beans"
    xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
    xmlns:aop="http://www.springframework.org/schema/aop"
    xmlns:tx="http://www.springframework.org/schema/tx"
    xmlns:context="http://www.springframework.org/schema/context"
    xsi:schemaLocation="http://www.springframework.org/schema/aop http://www.springframework.org/schema/aop/spring-aop-2.5.xsd
        http://www.springframework.org/schema/beans http://www.springframework.org/schema/beans/spring-beans-2.5.xsd
        http://www.springframework.org/schema/context http://www.springframework.org/schema/context/spring-context-2.5.xsd
        http://www.springframework.org/schema/tx http://www.springframework.org/schema/tx/spring-tx-2.5.xsd">


    <bean id="persistenceManager" class="com.apollo.counterpartcontacts.service.PersistenceManager">
    </bean>

    <tx:annotation-driven transaction-manager="txManager"/>
<!--    <context:annotation-config />   -->

    <bean id="txManager" class="org.springframework.orm.jpa.JpaTransactionManager">
        <property name="entityManagerFactory" ref="entityManagerFactory"/>
    </bean>

    <bean id="entityManagerFactory"
        class="org.springframework.orm.jpa.LocalContainerEntityManagerFactoryBean">
        <property name="dataSource" ref="CounterpartContactDataSource" /> 
        <property name="persistenceUnitName" value="CounterpartContacts" />
        <property name="loadTimeWeaver">
            <bean class="org.springframework.instrument.classloading.InstrumentationLoadTimeWeaver" />
        </property>
    </bean>

</beans>

文件persistence.xml位于src/META-INF目录下，该目录已包含在构建路径中，因此应该能够正确找到该文件。有任何想法的人吗？

1
你确定 persistence.xml 被复制到构建目录中了吗（或类似的地方）？ - Jeremy
@Jeremy 我该如何检查这个？ - John Roberts
这要看你是用什么构建应用程序的。Eclipse？Ant？Maven？ - Jeremy
@chrislovecnm 是的，我在那里看到它了。 - John Roberts
同时，您可以使用setPersistenceXmlLocation设置persistence.xml文件的位置...正在尝试弄清楚这是否是类路径问题。 - chrislovecnm
显示剩余2条评论
4个回答
11

通常我会将persistence.xml放在资源文件夹/src/main/resouces/META-INF/persistence.xml中，因为我记得构建时会出现问题，无法将资源复制到输出目录。

我刚刚查看了我们的配置，发现它有一些不同:

<!--
    - Drives transactions using local JPA APIs
-->
<bean id="transactionManager" class="org.springframework.orm.jpa.JpaTransactionManager">
    <property name="entityManagerFactory" ref="entityManagerFactory"/>
</bean>

<tx:annotation-driven mode="aspectj" proxy-target-class="true" />

<!--
    Custom PersistenceUnitManager, that reads all persistence.xml files in the
    classpath and merges them to one single virtual persistence.xml.

    In order to operate properly, all persistence.xml have to define the same
    persistence unit name.
-->
<bean id="persistenceUnitManager" class="de.cware.cweb.jpa.MergingPersistenceUnitManager">
    <property name="persistenceXmlLocations">
        <list>
            <value>classpath*:META-INF/persistence.xml</value>
        </list>
    </property>
    <property name="defaultDataSource" ref="dataSource"/>
</bean>

<bean id="jpaTemplate" class="org.springframework.orm.jpa.JpaTemplate">
    <property name="entityManagerFactory" ref="entityManagerFactory"/>
</bean>

<!--
    Creates a EntityManagerFactory for use with the Hibernate JPA provider and a simple
    in-memory data source populated with test data
-->
<bean id="entityManagerFactory" class="org.springframework.orm.jpa.LocalContainerEntityManagerFactoryBean">
    <property name="loadTimeWeaver">
        <bean class="org.springframework.instrument.classloading.InstrumentationLoadTimeWeaver"/>
    </property>
    <property name="jpaDialect">
        <bean class="org.springframework.orm.jpa.vendor.HibernateJpaDialect"/>
    </property>
    <property name="jpaVendorAdapter">
        <bean class="org.springframework.orm.jpa.vendor.HibernateJpaVendorAdapter">
            <property name="showSql" value="false"/>
            <property name="generateDdl" value="true"/>
        </bean>
    </property>
    <property name="jpaProperties">
        <props>
            <prop key="hibernate.dialect">${cweb.database.dialect}</prop>
            <prop key="hibernate.hbm2ddl.auto">${cweb.database.generate}</prop>
            <prop key="hibernate.search.default.indexBase">${cwb.home}/indexes</prop>
            <prop key="hibernate.ejb.naming_strategy">de.cware.cweb.jpa.QuotingNamingStrategy</prop>
        </props>
    </property>
    <property name="dataSource" ref="dataSource"/>
    <property name="persistenceUnitManager" ref="persistenceUnitManager"/>
</bean>
<bean id="dataSource" class="org.apache.commons.dbcp.ManagedBasicDataSource">
    <property name="driverClassName" value="${cweb.database.driver}"/>
    <property name="url" value="${cweb.database.url}"/>
    <property name="username" value="${cweb.database.user}"/>
    <property name="password" value="${cweb.database.password}"/>
    <property name="initialSize" value="${cweb.database.initial-pool-size}"/>
    <property name="maxIdle" value="${cweb.database.min-pool-size}"/>
    <property name="maxActive" value="${cweb.database.max-pool-size}"/>
    <property name="validationQuery" value="#{'${cweb.database.validationQuery}}'.length()==0?'':'${cweb.database.validationQuery}'}"/>
    <property name="testOnBorrow" value="#{'${cweb.database.validationQuery}}'.length()==0?false:true}"/>
    <property name="testWhileIdle" value="#{'${cweb.database.validationQuery}}'.length()==0?false:true}"/>
    <property name="timeBetweenEvictionRunsMillis" value="#{'${cweb.database.validationQuery}}'.length()==0?-1:10000}"/>
    <property name="minEvictableIdleTimeMillis" value="#{'${cweb.database.validationQuery}}'.length()==0?-1:60000}"/>
    <property name="defaultTransactionIsolation" value="#{ T(java.sql.Connection).TRANSACTION_READ_COMMITTED}"/>
</bean>

希望这能帮到你:-)
克里斯
哎呀...刚看到主要区别在于使用自定义的PersistenceUnitManager...我在我的Wiki中描述了这个 https://dev.c-ware.de/confluence/display/PUBLIC/Multiple+persistence.xml+in+a+multi-module+application - Christofer Dutz
1
谢天谢地，我找到了这篇文章... META-INF 应该始终位于资源目录内，这样才能正常工作！ - skiabox
3
将persistence.xml文件放置在资源文件夹中/src/main/resouces/META-INF/persistence.xml，对我来说这个解决方案可行。
嗯，我花了好几个小时才找到错误...我一直在重建我的实体... - alexander
3

  • 将你的persistence.xml保存在WEB-INF/classes/META-INF/persistence.xml中。

  • 移除与Hibernate冲突的库....

  • 如果已经存在Hibernate核心，请移除hibernate-3.2.0 jar文件。

1
如果您有一个与另一个未映射的类有关系的Hibernate映射类，则可能会出现此错误。解决方案是将关联项标记为@transient（Hibernate将忽略它，只需使用它来检查是否出错，然后映射相关类）。示例：
@Entity
public class City {

@Id
@GeneratedValue(strategy=GenerationType.AUTO)
private int id;

private String name;

@Transient
private State state;

public int getId() {
    return id;
}

public void setId(int id) {
    this.id = id;
}

public String getName() {
    return name;
}

public void setName(String name) {
    this.name = name;
}

public State getState() {
    return state;
}

public void setState(State state) {
    this.state = state;
}

}


这是可能导致错误的未映射类:

public class State {

private String name;

}
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