Spring/JPA/Hibernate持久实体：什么都没有发生

Question

我正在尝试用Spring 3、JPA 2和Hibernate 3制作一个应用程序。我有一个问题，当你坚持一个实体：什么都没发生！数据不插入数据库，也不执行查询。但是，当我使用一个请求，如query.getResultList（）选择正常工作。

所以我认为我的问题只是在坚持/更新和事务管理器上，但我不太擅长Spring。你能帮帮我吗？

下面是我的配置文件：

    <jee:jndi-lookup id="soireeentreamis_DS" jndi-name="jdbc/soireeentreamis" />

    <bean id="persistenceUnitManager"
        class="org.springframework.orm.jpa.persistenceunit.DefaultPersistenceUnitManager">
        <property name="persistenceXmlLocations">
            <list>
                <value>classpath*:META-INF/persistence.xml</value>
            </list>
        </property>
        <property name="defaultDataSource" ref="soireeentreamis_DS" />
        <property name="dataSources">
            <map>
                <entry key="soireeentreamisDS" value-ref="soireeentreamis_DS" />
            </map>
        </property>
    </bean>

    <bean id="entityManagerFactory"
        class="org.springframework.orm.jpa.LocalContainerEntityManagerFactoryBean">
        <property name="persistenceUnitManager" ref="persistenceUnitManager" />
        <property name="persistenceUnitName" value="soireeentreamisPU" />
        <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" />
            </bean>
        </property>
    </bean>

    <bean id="soireeentreamisTransactionManager" class="org.springframework.orm.jpa.JpaTransactionManager">
        <property name="entityManagerFactory" ref="entityManagerFactory" />
        <property name="jpaDialect">
            <bean class="org.springframework.orm.jpa.vendor.HibernateJpaDialect" />
        </property>
    </bean>

    <tx:annotation-driven transaction-manager="soireeentreamisTransactionManager" />

    <context:annotation-config />
</beans>

    <persistence-unit name="soireeentreamisPU"
        transaction-type="RESOURCE_LOCAL">
        <provider>org.hibernate.ejb.HibernatePersistence</provider>
        <non-jta-data-source>soireeentreamisDS</non-jta-data-source>
        <properties>
            <property name="hibernate.dialect" value="org.hibernate.dialect.MySQLDialect" />
            <property name="hibernate.hbm2ddl.auto" value="create"/>
        </properties>
    </persistence-unit>

@Service
@Transactional("soireeentreamisTransactionManager")
public class UserServiceImpl implements UserService ...

@Repository
public class UserDaoImpl extends GenericDaoImpl<User, String> implements
        UserDao {  
@PersistenceContext(unitName = "soireeentreamisPU")
private EntityManager em;   
public void persist(final User entity) {
        em.persist(entity);
    }
}

谁能帮帮我吗？

Answer 1

您需要将模型对象添加到持久性中。xml文件。在provider元素add的正下方

<class>com.your.domain.object.User</class>

Answer 2

这件事最近发生在我身上。问题是，正如您所说的一个事务性问题，将@事务性注释添加到所有更新数据库的方法中。然后将CGLIB库添加到您的calsspath或添加到您的pom.xml如果您使用Maven，这对于Spring make事务是必要的。即使我以不同的方式做这件事，我希望它能帮助你。这是我的db.xml，我有所有与Spring配置相关的数据库。

<!-- Scans within the base package of the application for @Components to configure as beans -->

<context:property-placeholder location="classpath:db.properties"/>

<bean id="entityManagerFactory"
    class="org.springframework.orm.jpa.LocalContainerEntityManagerFactoryBean">
    <property name="jpaVendorAdapter">
        <bean class="org.springframework.orm.jpa.vendor.HibernateJpaVendorAdapter">
            <property name="showSql" value="true" />
            <property name="generateDdl" value="true" />
            <property name="databasePlatform" value="${db.dialect}" />
        </bean>
    </property>
</bean>

<bean id="dataSource" class="com.jolbox.bonecp.BoneCPDataSource"
    destroy-method="close">
    <property name="driverClass" value="${db.driver}" />
    <property name="jdbcUrl" value="${db.url}" />
    <property name="username" value="${db.username}" />
    <property name="password" value="${db.password}" />
    <property name="idleConnectionTestPeriodInMinutes" value="1" />
    <property name="idleMaxAgeInMinutes" value="4" />
    <property name="maxConnectionsPerPartition" value="30" />
    <property name="minConnectionsPerPartition" value="10" />
    <property name="partitionCount" value="3" />
    <property name="acquireIncrement" value="5" />
    <property name="statementsCacheSize" value="100" />
    <property name="releaseHelperThreads" value="3" />
</bean>

<bean id="jpaDialect" class="org.springframework.orm.jpa.vendor.HibernateJpaDialect"/>

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

<tx:annotation-driven transaction-manager="transactionManager"/>

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

这是我的persistence.xml

<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="pu-app" transaction-type="RESOURCE_LOCAL">


</persistence-unit>

Answer 3

不久前我发现了类似的问题。在我的例子中，我需要在dispacher servlet中添加下面的行。xml。所以我在两个地方需要它（applicationContex.xml和dispacher servlet.xml）

<tx:annotation-driven />

为了澄清一些问题，您没有向服务方法显示“store”对象，但我相信它是用@Transactional注释的，因为您不想创建新的事务。