“未找到持久性单元”错误

【问题标题】："No Persistence Unit Found" error“未找到持久性单元”错误
【发布时间】：2011-10-22 13:23:56
【问题描述】：

我收到以下错误：

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：

<?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>

persistence.xml 位于构建路径中的 src/META-INF 中，因此应该可以正确找到它。有人有什么想法吗？

【问题讨论】：

  • 您确定将 persistence.xml 复制到构建目录（或类似的目录）吗？
  • @Jeremy 我怎么检查这个？
  • 视情况而定。你是如何构建你的应用程序的？蚀？蚂蚁？马文？
  • 检查构建路径在 Eclipse 中设置的位置（可能是类）并查看文件夹。转到文件浏览器或命令行进行检查。您应该在该路径中找到 xml
  • @chrislovecnm 是的，我在里面看到了。

标签： java hibernate spring jpa


【解决方案1】：

将persistence.xml 放在资源文件夹/src/main/resouces/META-INF/persistence.xml 中，对我来说这是解决方案

【讨论】：

  • 嗯，我只是花了几个小时才找到错误...我一直在重建我的实体...
【解决方案2】：

如果您有一个休眠映射类与另一个非映射类有关系，则可能会发生此错误，解决方案是将关系项检查为@transient（休眠将忽略它，使用它只是为了检查这是否是错误，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;
}

}


这是可能给出错误的非映射类：

public class State {

private String name;

}

【讨论】：

    【解决方案3】：

    • 将您的 persistence.xml 保存在 WEB-INF/classes/META-INF/persistence.xml 中

    • 删除休眠冲突库....

    • 如果存在休眠核心，则删除休眠 - 3.2.0 jar

    【讨论】：

      【解决方案4】：

      我通常将persistence.xml 放在资源文件夹/src/main/resouces/META-INF/persistence.xml 中，因为我确实记得构建中没有将资源复制到输出目录的问题。

      我刚刚查看了我们的配置，它看起来有点不同：

      <!--
    - 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>

      希望这会有所帮助:-)

      克里斯

      【讨论】：

      • Ups ... 刚刚看到主要区别在于自定义 PersistenceUnitManager 的使用 ...我在我的 Wiki dev.c-ware.de/confluence/display/PUBLIC/… 中描述了这一点
      • 感谢上帝，我找到了这篇文章...META-INF 应该始终在资源目录中，这样它才能工作！
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