带有tomcat的Spring jpa（Hibernate）

Question

这些天我正在使用 JPA(Hibernate) 和 spring 项目，我配置了 spring、jpa 并尝试在 tomcat7 上部署应用程序，据我所知 jpa/hibernate 使用实体类首次加载创建表，但在这里我不能'在应用程序启动时看不到数据库和应用程序之间的任何连接，下面你可以看到我的配置，我已经看到很多关于这个问题的问题，我找不到解决我问题的正确方法。

谁能告诉我这里有什么问题。我已经在码头服务器上创建了一个没有任何问题的应用程序， 提前谢谢你

applicationContext-dao.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:context="http://www.springframework.org/schema/context"
       xmlns:tx="http://www.springframework.org/schema/tx"
       xmlns:p="http://www.springframework.org/schema/p"
       xsi:schemaLocation="http://www.springframework.org/schema/beans
                           http://www.springframework.org/schema/beans/spring-beans-3.0.xsd
                           http://www.springframework.org/schema/context
                           http://www.springframework.org/schema/context/spring-context-3.0.xsd
                           http://www.springframework.org/schema/tx
                           http://www.springframework.org/schema/tx/spring-tx-3.0.xsd"
       default-lazy-init="true">

    <!-- Use @Transaction annotations for managing transactions  -->
    <!--<tx:annotation-driven/>-->

    <!-- holding properties for database connectivity / -->
    <context:property-placeholder location="classpath:jdbc.properties"/>

    <tx:annotation-driven proxy-target-class="true" />
    <!-- Activates scanning of @Autowired -->
    <context:annotation-config/>

    <!-- Activates scanning of @Repository -->
    <context:component-scan base-package="lk.gov.elg"/>

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

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

    <bean id="dataSource"
          class="org.springframework.jdbc.datasource.DriverManagerDataSource"
          p:driverClassName="${jdbc.driverClassName}"
          p:url="${jdbc.url}"
          p:username="${jdbc.username}"
          p:password="${jdbc.password}"/>

    <bean id="transactionManager" class="org.springframework.orm.jpa.JpaTransactionManager"
          p:entityManagerFactory-ref="entityManagerFactory"
          p:dataSource-ref="dataSource"/>

    <bean class="org.springframework.jdbc.datasource.DataSourceTransactionManager">
        <property name="dataSource" ref="dataSource"/>
    </bean>

    <bean id="entityManagerFactory"
          class="org.springframework.orm.jpa.LocalContainerEntityManagerFactoryBean"
          p:dataSource-ref="dataSource"
          p:jpaVendorAdapter-ref="jpaAdapter">
        <property name="persistenceUnitName" value="eLGPersistenceUnit"></property>
        <property name="loadTimeWeaver">
            <bean class="org.springframework.instrument.classloading.SimpleLoadTimeWeaver"/>
        </property>
    </bean>

    <!-- Jpa adapter for the Hibernate -->
    <bean id="jpaAdapter"
          class="org.springframework.orm.jpa.vendor.HibernateJpaVendorAdapter"
          p:databasePlatform="org.hibernate.dialect.MySQLDialect"
          p:generateDdl="true"
          p:showSql="true"  >
    </bean>

    <bean
            class="org.springframework.context.annotation.CommonAnnotationBeanPostProcessor"/>

    <bean
            class="org.springframework.beans.factory.annotation.AutowiredAnnotationBeanPostProcessor"/>
</beans>

persistance.xml

<?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="eLGPersistenceUnit"
                      transaction-type="RESOURCE_LOCAL">
    <!--transaction-type="JTA">-->
        <provider>org.hibernate.ejb.HibernatePersistence</provider>
        <properties>
            <property name="hibernate.hbm2ddl.auto" value="validate"/>
        </properties>
        <!--<provider>org.hibernate.ejb.HibernatePersistence</provider>-->
    </persistence-unit>
</persistence>

Answer 1

我认为你的配置没有问题，去掉“default-lazy-init=true”属性后试试

干杯

Answer 2

尝试改变：

<property name="hibernate.hbm2ddl.auto" value="validate"/>

到：

<property name="hibernate.hbm2ddl.auto" value="update"/>

或：

<property name="hibernate.hbm2ddl.auto" value="create"/>