Question

我使用Spring @Transactional和JavaFX应用程序，所有我的bean和图形组件都是由Spring管理的。这就是问题。

我在控制器上初始化我的appusing @PostConstruct。在PostConstruct中，我所有的daos都运行得很好但是当我通过按JavaFX按钮调用服务来保存某些内容时，我得到了这个例外。

    Caused by: org.springframework.transaction.CannotCreateTransactionException: Could not open JPA EntityManager for transaction; nested exception is java.lang.IllegalStateException: EntityManagerFactory is closed
at org.springframework.orm.jpa.JpaTransactionManager.doBegin(JpaTransactionManager.java:431)
at org.springframework.transaction.support.AbstractPlatformTransactionManager.getTransaction(AbstractPlatformTransactionManager.java:373)
at org.springframework.transaction.interceptor.TransactionAspectSupport.createTransactionIfNecessary(TransactionAspectSupport.java:463)
at org.springframework.transaction.interceptor.TransactionAspectSupport.invokeWithinTransaction(TransactionAspectSupport.java:276)
at org.springframework.transaction.interceptor.TransactionInterceptor.invoke(TransactionInterceptor.java:96)
at org.springframework.aop.framework.ReflectiveMethodInvocation.proceed(ReflectiveMethodInvocation.java:179)
at org.springframework.aop.framework.JdkDynamicAopProxy.invoke(JdkDynamicAopProxy.java:207)
at com.sun.proxy.$Proxy48.saveGame(Unknown Source)
at dev.debizis.mtggui.desktop.controller.TemplateEditorController.handleSaveGameAction(TemplateEditorController.java:362)
... 68 more
    Caused by: java.lang.IllegalStateException: EntityManagerFactory is closed
at org.hibernate.jpa.internal.EntityManagerFactoryImpl.validateNotClosed(EntityManagerFactoryImpl.java:388)
at org.hibernate.jpa.internal.EntityManagerFactoryImpl.internalCreateEntityManager(EntityManagerFactoryImpl.java:342)
at org.hibernate.jpa.internal.EntityManagerFactoryImpl.createEntityManager(EntityManagerFactoryImpl.java:313)
at org.springframework.orm.jpa.JpaTransactionManager.createEntityManagerForTransaction(JpaTransactionManager.java:449)
at org.springframework.orm.jpa.JpaTransactionManager.doBegin(JpaTransactionManager.java:369)
... 76 more

有没有人知道为什么在方法上使用@Transactonal打开entityManager进行交易？

我的hibernate bean配置：

http://www.springframework.org/schema/beans/spring-beans.xsd http://www.springframework.org/schema/tx http://www.springframework.org/schema/tx/spring-tx.xsd http://www.springframework.org/schema/jdbc http://www.springframework.org/schema/jdbc/spring-jdbc.xsd＆＃34;＆GT;

<bean class="org.springframework.orm.jpa.support.PersistenceAnnotationBeanPostProcessor" />

<!-- the property configurer for the datasource -->
<bean id="propertyConfigurer" class="org.springframework.beans.factory.config.PropertyPlaceholderConfigurer">
    <property name="locations">
        <list>
            <value>jdbc.properties</value>
        </list>
    </property>
    <property name="ignoreUnresolvablePlaceholders" value="true" />
</bean>

<!-- the DataSource (parameterized for configuration via a PropertyPlaceHolderConfigurer) -->
<bean id="dataSource" destroy-method="close" class="org.apache.commons.dbcp2.BasicDataSource">
    <property name="driverClassName" value="${h2.jdbc.driverClassName}" />
    <property name="url" value="${h2.jdbc.url}" />
    <property name="username" value="${h2.jdbc.username}" />
    <property name="password" value="${h2.jdbc.password}" />
</bean>

<!-- Hibernate SessionFactory Definition Debug -->
<bean id="entityManagerFactory" class="org.springframework.orm.jpa.LocalContainerEntityManagerFactoryBean">
    <property name="dataSource" ref="dataSource" />
    <property name="packagesToScan" value="com.cardassiel.dao.entity" />
    <property name="jpaVendorAdapter">
        <bean class="org.springframework.orm.jpa.vendor.HibernateJpaVendorAdapter" />
    </property>
    <property name="jpaProperties">
        <props>
            <prop key="hibernate.connection.autocommit">false</prop>
            <prop key="hibernate.dialect">org.hibernate.dialect.H2Dialect</prop>
            <prop key="hibernate.show_sql">true</prop>
            <prop key="hibernate.hbm2ddl.auto">validate</prop>
            <prop key="hibernate.bytecode.use_reflection_optimizer">true</prop>
            <prop key="hibernate.cache.provider_class">org.hibernate.cache.HashtableCacheProvider</prop>
            <!--  <prop key="hibernate.enable_lazy_load_no_trans">true</prop> -->
        </props>
    </property>
</bean>

<!-- Hibernate Transaction Manager Definition -->
<bean id="transactionManager" class="org.springframework.orm.jpa.JpaTransactionManager">
    <property name="entityManagerFactory" ref="entityManagerFactory" />
</bean>

我的服务背景

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

<import resource="classpath*:dao-context.xml" />

<import resource="classpath*:common-context.xml" />

<context:component-scan base-package="com.cardassiel.core.service" />
<context:component-scan base-package="com.cardassiel.core.mapper" />

<!-- hibernate transaction by annotations -->
<tx:annotation-driven transaction-manager="transactionManager" />

我的保存方法：

    /** {@inheritDoc} */
@Override
@Transactional
public final Long saveGame(final GameDTO game) {
    LOGGER.debug("saveGame : name = {}", game.getName());
    return gameDao.saveOrUpdate(mapper.map(game, Game.class));
}

我的道法：

    /** {@inheritDoc}*/
@SuppressWarnings("unchecked")
@Override
public final P saveOrUpdate(final T o) {
    if (entityManager.getEntityManagerFactory().getPersistenceUnitUtil().getIdentifier(o) == null) {
        entityManager.persist(o);
    } else {
        entityManager.merge(o);
    }
    return (P) entityManager.getEntityManagerFactory().getPersistenceUnitUtil().getIdentifier(o);
}

先谢谢。

Answer 1

通过阅读日志，我已经了解了发生了什么。

一个线程正在关闭applicationContext，并且隐含所有单例bean，包括entityManagerFactory！

每个PersistenceUnit生命周期只能打开一次entityManagerFactory。

当Transaction尝试打开带有已关闭工厂的entityManager时，会抛出异常。

Spring JavaFX @Transactional entitymanager已关闭

1 个答案: