spring与jdbc整合

<?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:context="http://www.springframework.org/schema/context"
xmlns:tx="http://www.springframework.org/schema/tx"
xsi:schemaLocation="http://www.springframework.org/schema/beans http://www.springframework.org/schema/beans/spring-beans-2.5.xsd http://www.springframework.org/schema/aop http://www.springframework.org/schema/aop/spring-aop-2.5.xsd http://www.springframework.org/schema/context http://www.springframework.org/schema/context/spring-context-2.5.xsd http://www.springframework.org/schema/tx http://www.springframework.org/schema/tx/spring-tx-2.5.xsd"> 
<context:component-scan base-package="cn.itcast"/>

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

<bean id="dataSource" class="com.mchange.v2.c3p0.ComboPooledDataSource">
<property name="driverClass" value="${jdbc.driverClassName}"/>
<property name="jdbcUrl" value="${jdbc.url}"/>
<property name="user" value="${jdbc.username}"/>
<property name="password" value="${jdbc.password}"/>
<property name="maxPoolSize" value="${jdbc.maxPoolSize}"/>
<property name="minPoolSize" value="${jdbc.minPoolSize}"/>
<property name="initialPoolSize" value="${jdbc.initialPoolSize}"/>
<property name="maxIdleTime" value="${jdbc.maxIdleTime}"/>
<property name="acquireIncrement" value="${jdbc.acquireIncrement}"/>
</bean>

<!-- 装载spring提供的针对数据源的事务管理器 -->
<bean id="txManager" class="org.springframework.jdbc.datasource.DataSourceTransactionManager">
<property name="dataSource" ref="dataSource"/>
</bean>

<!-- 打开注解配置管理事务的处理器 -->
<tx:annotation-driven transaction-manager="txManager"/>

<aop:config>
<aop:pointcut expression="execution(* cn.itcast.service..*.*(..))" id="mycut"/>
<aop:advisor advice-ref="txAdvice" pointcut-ref="mycut"/>
</aop:config>
<tx:advice id="txAdvice" transaction-manager="txManager">
<tx:attributes>
<tx:method name="get*" read-only="true" propagation="NOT_SUPPORTED"/>
<tx:method name="*"/>
</tx:attributes>
</tx:advice>

</beans>