Cyh的博客

在persistence.xml中加上<property name="hibernate.hbm2ddl.auto" value="update" />或设置在Spring配置中，在Spring 的sessionFactory中设置，当运行Spring时会自动生成Table

<!--applicationContext.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"
    xsi:schemaLocation="http://www.springframework.org/schema/beans http://www.springframework.org/schema/beans/spring-beans-2.0.xsd http://www.springframework.org/schema/tx http://www.springframework.org/schema/tx/spring-tx-2.0.xsd"
    xmlns:tx="http://www.springframework.org/schema/tx">


    <bean id="entityManagerFactory"
        class="org.springframework.orm.jpa.LocalEntityManagerFactoryBean">
        <property name="persistenceUnitName" value="onlinephotoPU" />
    </bean>
    <bean id="transactionManager"
        class="org.springframework.orm.jpa.JpaTransactionManager">
        <property name="entityManagerFactory"
            ref="entityManagerFactory" />
    </bean>

    <bean id="dataSource"
        class="org.springframework.jdbc.datasource.DriverManagerDataSource">
        <property name="driverClassName" value="com.mysql.jdbc.Driver" />
        <property name="url" value="jdbc:mysql://127.0.0.1:3306/photo" />
        <property name="username" value="root" />
        <property name="password" value="root" />
    </bean>
    <bean id="sessionFactory"
        class="org.springframework.orm.hibernate3.annotation.AnnotationSessionFactoryBean">
        <property name="dataSource" ref="dataSource" />
        <property name="annotatedClasses">
            <list>
                <value>com.tst.Person</value>
            </list>
        </property>
        <property name="hibernateProperties">
            <props>
                <prop key="hibernate.dialect">
                    org.hibernate.dialect.MySQLInnoDBDialect
                </prop>
                <prop key="hibernate.show_sql">true</prop>
                <prop key="hibernate.hbm2ddl.auto">create-drop</prop>
            </props>
        </property>
    </bean>
    <tx:annotation-driven transaction-manager="transactionManager" />
    <bean id="PersonDAO" class="com.tst.PersonDAO">
        <property name="entityManagerFactory"
            ref="entityManagerFactory" />
    </bean>
</beans>

<!--persistence.xml-->
<?xml version="1.0" encoding="UTF-8"?>
<persistence 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_1_0.xsd" version="1.0">
   
    <persistence-unit name="onlinephotoPU"
        transaction-type="RESOURCE_LOCAL">
        <provider>org.hibernate.ejb.HibernatePersistence</provider>
        <class>com.tst.Person</class>
        <properties>
            <property name="hibernate.connection.driver_class"
                value="com.mysql.jdbc.Driver" />
            <property name="hibernate.connection.url"
                value="jdbc:mysql://127.0.0.1:3306/photo" />
            <property name="hibernate.connection.username" value="root" />
            <property name="hibernate.connection.password" value="root" />
            <property name="hibernate.hbm2ddl.auto" value="update" />
        </properties>
    </persistence-unit>
</persistence>

                                                                                                       --    学海无涯