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这篇主要介绍一下Spring整合Hibernate(2)----注解方式：
和设置注入的依赖方式基本上一样，这里只讨论具体的不同点即可：
最大一个不同的点就是注解方式不需要写实体类的映射文件，直接使用配置实体类即可，Spring框架会自己帮我们完成实体类
到数据库表之间的ORM映射。而applicationContext.xml文件就需要写ORM映射文件。
注解方式下的applicationContext.xml文件配置如下：
<?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:aop="http://www.springframework.org/schema/aop"
xmlns:tx="http://www.springframework.org/schema/tx"
xmlns:context="http://www.springframework.org/schema/context"
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/aop
http://www.springframework.org/schema/aop/spring-aop.xsd
http://www.springframework.org/schema/context
http://www.springframework.org/schema/context/spring-context.xsd">
<!--自动扫描包-->
<context:component-scan base-package="com.test" />
<!--加载配置文件-->
<bean class="org.springframework.beans.factory.config.PropertyPlaceholderConfigurer">
<property name="locations">
<list>
<value>classpath:jdbc.properties</value>
</list>
</property>
</bean>
<!--配置连接池数据源-->
<bean id="c3p0DataSource" destroy-method="close"
class="com.mchange.v2.c3p0.ComboPooledDataSource">
<property name="driverClass" value="${driverClass}" />
<property name="jdbcUrl" value="${url}" />
<property name="user" value="${user}" />
<property name="password" value="${password}" />
<property name="initialPoolSize" value="${initialPoolSize}" />
<property name="minPoolSize" value="${minPoolSize}" />
<property name="maxPoolSize" value="${maxPoolSize}" />
<property name="maxIdleTime" value="${maxIdleTime}" />
</bean>
<!--配置sessionFactory-->
<bean id="sessionFactory"
class="org.springframework.orm.hibernate4.LocalSessionFactoryBean">
<property name="dataSource" ref="c3p0DataSource" />
<property name="packagesToScan">
<list>
<value>com.test.bean</value> <!--这里只需要配置bean即可-->
</list>
</property>
<property name="hibernateProperties">
<props>
<prop key="hibernate.dialect">${dialect}</prop>
<prop key="hibernate.show_sql">${show_sql}</prop>
<prop key="hibernate.format_sql">${format_sql}</prop>
<prop key="hibernate.use_sql_commants">${use_sql_comments}</prop>
<prop key="hibernate.hbm2ddl.auto">${hbm2ddl.auto}</prop>
</props>
</property>
</bean>
<bean id="txManager"
class="org.springframework.orm.hibernate4.HibernateTransactionManager">
<property name="sessionFactory" ref="sessionFactory" />
</bean>
<tx:advice id="txAdvice" transaction-manager="txManager">
<tx:attributes>
<tx:method name="get*" read-only="true" />
<tx:method name="*" />
</tx:attributes>
</tx:advice>
<aop:config>
<aop:pointcut id="bizMethods" expression="execution(* com.test.biz.*.*(..))" />
<aop:advisor advice-ref="txAdvice" pointcut-ref="bizMethods" />
</aop:config>
</beans>
<?xml version="1.0" encoding="UTF-8"?>
<beans xmlns="http://www.springframework.org/schema/beans"
xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
xmlns:aop="http://www.springframework.org/schema/aop"
xmlns:tx="http://www.springframework.org/schema/tx"
xsi:schemaLocation="http://www.springframework.org/schema/beans
http://www.springframework.org/schema/beans/spring-beans.xsd
http://www.springframework.org/schema/tx
http://www.springframework.org/schema/tx/spring-tx.xsd
http://www.springframework.org/schema/aop
http://www.springframework.org/schema/aop/spring-aop.xsd">
<!-- 让spring 去读取指定路径下的资源文件 -->
<bean class="org.springframework.beans.factory.config.PropertyPlaceholderConfigurer">
<property name="locations" value="classpath:jdbc.properties"/>
</bean>
<!-- 配置c3p0连接池 -->
<bean id="c3p0Source" class="com.mchange.v2.c3p0.ComboPooledDataSource" destroy-method="close">
<property name="driverClass" value="${driverClass}" />
<property name="jdbcUrl" value="${url}" />
<property name="user" value="${user}" />
<property name="password" value="${password}" />
<property name="initialPoolSize" value="${initialPoolSize}" />
<property name="minPoolSize" value="${minPoolSize}" />
<property name="maxPoolSize" value="${maxPoolSize}" />
<property name="maxIdleTime" value="${maxIdleTime}" />
</bean>
<!-- 配置SessionFactory -->
<bean id="sessionFactory" class="org.springframework.orm.hibernate4.LocalSessionFactoryBean">
<property name="dataSource" ref="c3p0Source" />
<property name="mappingResources">
<list>
<value>/com/cdzg/spring/bean/User.hbm.xml</value> <!-- 需要写ORM映射文件 -->
</list>
</property>
<property name="hibernateProperties">
<props>
<prop key="hibernate.dialect">${dialect}</prop>
<prop key="hibernate.hbm2ddl.auto">${hbm2ddl.auto}</prop>
<prop key="hibernate.show_sql">${show_sql}</prop>
<prop key="hibernate.format_sql">${format_sql}</prop>
<prop key="hibernate.use_sql_comments">${use_sql_comments}</prop>
</props>
</property>
</bean>
<!-- 配置事务管理器 -->
<bean id="txManager" class="org.springframework.orm.hibernate4.HibernateTransactionManager">
<property name="sessionFactory" ref="sessionFactory" />
</bean>
<!-- 定义事务通知 -->
<tx:advice id="txAdvice" transaction-manager="txManager">
<tx:attributes>
<tx:method name="get*" read-only="true"/>
<tx:method name="*"/>
</tx:attributes>
</tx:advice>
<!-- 定义事务切面，并应用事务通知 -->
<aop:config>
<aop:pointcut id="xxxBizImpl" expression="execution(* com.cdzg.spring.biz.*.*(..))"/>
<aop:advisor pointcut-ref="xxxBizImpl" advice-ref="txAdvice"/>
</aop:config>
<bean id="userDaoImpl" class="com.cdzg.spring.dao.impl.UserDaoImpl">
<property name="sessionFactory" ref="sessionFactory" />
</bean>
<bean id="userBizImpl" class="com.cdzg.spring.biz.impl.UserBizImpl">
<property name="userDao" ref="userDaoImpl" />
</bean>
<bean id="userAction" class="com.cdzg.spring.web.actions.UserAction">
<property name="userBiz" ref="userBizImpl" />
</bean>
</beans>
cs
