屬性'entityManagerFactory'是必需的

Question

我剛開始開發一個應用程序，意在支持已經存在的Web項目，因此業務層和持久層已經存在，並且在該Web應用程序中運行良好。現在，當我在控制檯應用程序中對這兩個圖層使用庫時，我得到一個JpaTransactionManager需要entityManagerFactory的錯誤，這很奇怪，因爲它不會在我的Web應用程序中拋出異常。所有我在控制檯應用程序做的是創建應用程序上下文

public static void main(String[] args) { 
    ApplicationContext ctx = new ClassPathXmlApplicationContext("engine-context.xml"); 

} 

發動機的context.xml：

<import resource="business-context.xml" /> 
<import resource="persistence-context.xml" /> 

<tx:annotation-driven transaction-manager="myTxManager" proxy-target-class="true"/> 

堆棧跟蹤：

Exception in thread "main" org.springframework.beans.factory.BeanCreationException: Error creating bean with name 'spielerService' defined in class path resource [business-context.xml]: BeanPostProcessor before instantiation of bean failed; nested exception is org.springframework.beans.factory.BeanCreationException: Error creating bean with name 'org.springframework.transaction.interceptor.TransactionAttributeSourceAdvisor#0': Cannot create inner bean '(inner bean)' of type [org.springframework.transaction.interceptor.TransactionInterceptor] 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 'myTxManager' while setting bean property 'transactionManager'; nested exception is org.springframework.beans.factory.BeanCreationException: Error creating bean with name 'myTxManager' defined in class path resource [persistence-context.xml]: Invocation of init method failed; nested exception is java.lang.IllegalArgumentException: Property 'entityManagerFactory' is required 
at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.createBean(AbstractAutowireCapableBeanFactory.java:452) 
at org.springframework.beans.factory.support.AbstractBeanFactory$1.getObject(AbstractBeanFactory.java:291) 
at org.springframework.beans.factory.support.DefaultSingletonBeanRegistry.getSingleton(DefaultSingletonBeanRegistry.java:222) 
at org.springframework.beans.factory.support.AbstractBeanFactory.doGetBean(AbstractBeanFactory.java:288) 
at org.springframework.beans.factory.support.AbstractBeanFactory.getBean(AbstractBeanFactory.java:190) 
at org.springframework.beans.factory.support.DefaultListableBeanFactory.preInstantiateSingletons(DefaultListableBeanFactory.java:580) 
at org.springframework.context.support.AbstractApplicationContext.finishBeanFactoryInitialization(AbstractApplicationContext.java:895) 
at org.springframework.context.support.AbstractApplicationContext.refresh(AbstractApplicationContext.java:425) 
at org.springframework.context.support.ClassPathXmlApplicationContext.<init>(ClassPathXmlApplicationContext.java:139) 
at org.springframework.context.support.ClassPathXmlApplicationContext.<init>(ClassPathXmlApplicationContext.java:83) 
at org.boogerrangers.engine.EngineMain.main(EngineMain.java:14) 
Caused by: org.springframework.beans.factory.BeanCreationException: Error creating bean with name 'org.springframework.transaction.interceptor.TransactionAttributeSourceAdvisor#0': Cannot create inner bean '(inner bean)' of type [org.springframework.transaction.interceptor.TransactionInterceptor] 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 'myTxManager' while setting bean property 'transactionManager'; nested exception is org.springframework.beans.factory.BeanCreationException: Error creating bean with name 'myTxManager' defined in class path resource [persistence-context.xml]: Invocation of init method failed; nested exception is java.lang.IllegalArgumentException: Property 'entityManagerFactory' is required 
    at org.springframework.beans.factory.support.BeanDefinitionValueResolver.resolveInnerBean(BeanDefinitionValueResolver.java:281) 
    at org.springframework.beans.factory.support.BeanDefinitionValueResolver.resolveValueIfNecessary(BeanDefinitionValueResolver.java:125) 
    at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.applyPropertyValues(AbstractAutowireCapableBeanFactory.java:1325) 
    at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.populateBean(AbstractAutowireCapableBeanFactory.java:1086) 
    at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.doCreateBean(AbstractAutowireCapableBeanFactory.java:517) 
    at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.createBean(AbstractAutowireCapableBeanFactory.java:456) 
    at org.springframework.beans.factory.support.AbstractBeanFactory$1.getObject(AbstractBeanFactory.java:291) 
    at org.springframework.beans.factory.support.DefaultSingletonBeanRegistry.getSingleton(DefaultSingletonBeanRegistry.java:222) 
    at org.springframework.beans.factory.support.AbstractBeanFactory.doGetBean(AbstractBeanFactory.java:288) 
    at org.springframework.beans.factory.support.AbstractBeanFactory.getBean(AbstractBeanFactory.java:194) 
    at org.springframework.aop.framework.autoproxy.BeanFactoryAdvisorRetrievalHelper.findAdvisorBeans(BeanFactoryAdvisorRetrievalHelper.java:86) 
    at org.springframework.aop.framework.autoproxy.AbstractAdvisorAutoProxyCreator.findCandidateAdvisors(AbstractAdvisorAutoProxyCreator.java:100) 
    at org.springframework.aop.aspectj.autoproxy.AspectJAwareAdvisorAutoProxyCreator.shouldSkip(AspectJAwareAdvisorAutoProxyCreator.java:107) 
    at org.springframework.aop.framework.autoproxy.AbstractAutoProxyCreator.postProcessBeforeInstantiation(AbstractAutoProxyCreator.java:278) 
    at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.applyBeanPostProcessorsBeforeInstantiation(AbstractAutowireCapableBeanFactory.java:848) 
    at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.resolveBeforeInstantiation(AbstractAutowireCapableBeanFactory.java:820) 
    at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.createBean(AbstractAutowireCapableBeanFactory.java:446) 
    ... 10 more 
Caused by: org.springframework.beans.factory.BeanCreationException: Error creating bean with name '(inner bean)': Cannot resolve reference to bean 'myTxManager' while setting bean property 'transactionManager'; nested exception is org.springframework.beans.factory.BeanCreationException: Error creating bean with name 'myTxManager' defined in class path resource [persistence-context.xml]: Invocation of init method failed; nested exception is java.lang.IllegalArgumentException: Property 'entityManagerFactory' is required 
    at org.springframework.beans.factory.support.BeanDefinitionValueResolver.resolveReference(BeanDefinitionValueResolver.java:328) 
    at org.springframework.beans.factory.support.BeanDefinitionValueResolver.resolveValueIfNecessary(BeanDefinitionValueResolver.java:106) 
    at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.applyPropertyValues(AbstractAutowireCapableBeanFactory.java:1325) 
    at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.populateBean(AbstractAutowireCapableBeanFactory.java:1086) 
    at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.doCreateBean(AbstractAutowireCapableBeanFactory.java:517) 
    at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.createBean(AbstractAutowireCapableBeanFactory.java:456) 
    at org.springframework.beans.factory.support.BeanDefinitionValueResolver.resolveInnerBean(BeanDefinitionValueResolver.java:270) 
    ... 26 more 
Caused by: org.springframework.beans.factory.BeanCreationException: Error creating bean with name 'myTxManager' defined in class path resource [persistence-context.xml]: Invocation of init method failed; nested exception is java.lang.IllegalArgumentException: Property 'entityManagerFactory' is required 
    at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.initializeBean(AbstractAutowireCapableBeanFactory.java:1420) 
    at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.doCreateBean(AbstractAutowireCapableBeanFactory.java:519) 
    at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.createBean(AbstractAutowireCapableBeanFactory.java:456) 
    at org.springframework.beans.factory.support.AbstractBeanFactory$1.getObject(AbstractBeanFactory.java:291) 
    at org.springframework.beans.factory.support.DefaultSingletonBeanRegistry.getSingleton(DefaultSingletonBeanRegistry.java:222) 
    at org.springframework.beans.factory.support.AbstractBeanFactory.doGetBean(AbstractBeanFactory.java:288) 
    at org.springframework.beans.factory.support.AbstractBeanFactory.getBean(AbstractBeanFactory.java:190) 
    at org.springframework.beans.factory.support.BeanDefinitionValueResolver.resolveReference(BeanDefinitionValueResolver.java:322) 
    ... 32 more 
Caused by: java.lang.IllegalArgumentException: Property 'entityManagerFactory' is required 
    at org.springframework.orm.jpa.JpaTransactionManager.afterPropertiesSet(JpaTransactionManager.java:257) 
    at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.invokeInitMethods(AbstractAutowireCapableBeanFactory.java:1477) 
    at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.initializeBean(AbstractAutowireCapableBeanFactory.java:1417) 
    ... 39 more 

所有我在web應用程序做的是定義web.xml中的上下文XML文件

<context-param> 
    <param-name>contextConfigLocation</param-name> 
    <param-value> 
     /WEB-INF/applicationContext.xml 
     classpath:persistence-context.xml 
     classpath:business-context.xml   
    </param-value> 
</context-param> 

有在applicationContext.xml

<!-- SESSION: --> 
    <bean name="spielerSession" class="org.boogerrangers.persistence.dom.SpielerLogin" scope="session" > 
     <aop:scoped-proxy/> 
    </bean> 

<!-- FILTER: --> 
    <bean name="authFilter" class="org.boogerrangers.game.filter.AuthFilter" > 
    </bean> 

沒有更多的魔法 -

持久化上下文

<context:annotation-config /> 

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

    <bean id="dataSource" 
     class="org.springframework.jdbc.datasource.DriverManagerDataSource"> 
     <property name="driverClassName" value="com.mysql.jdbc.Driver" /> 
     <property name="url" value="xxx" /> 
     <property name="username" value="xxx" /> 
     <property name="password" value="xxx" /> 
    </bean> 


    <tx:advice id="txAdvice" transaction-manager="myTxManager"> 
     <tx:attributes> 
      <tx:method name="get*" read-only="true" /> 
      <tx:method name="find*" read-only="true" /> 
      <tx:method name="*" rollback-for="Exception" /> 
     </tx:attributes> 
    </tx:advice> 
    <aop:config> 
     <aop:pointcut id="servicePointcut" expression="execution(* *..*Service*.*(..))" /> 
     <aop:advisor advice-ref="txAdvice" pointcut-ref="servicePointcut" /> 
    </aop:config> 

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

... DAOs ... 

需要更多信息？

作爲一個骯髒的解決方法我創建了一個新的持久性上下文，並使用它來代替，但這是令人困惑的，我不想有冗餘配置。我還創建了第二個webapp，與獨立應用程序做同樣的事情，沒有拋出異常。

在此先感謝。

Answer 1

JpaTransactionManager應EntityManagerFactory提供：

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

其dataSource屬性是可選的，如果你要使用JPA普通的JDBC訪問混用時才需要。

Answer 2

看來數據源中的事務管理器

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

但在我們的情況下被注入，則需要使用替代數據源到實體管理器，當您使用JPA事務管理：

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