spring声明式事物管理配置和对c3p0连接池的详细配置

<?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:p="http://www.springframework.org/schema/p"
xmlns:context="http://www.springframework.org/schema/context"
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/context http://www.springframework.org/schema/context/spring-context.xsd http://www.springframework.org/schema/aop http://www.springframework.org/schema/aop/spring-aop.xsd http://www.springframework.org/schema/tx http://www.springframework.org/schema/tx/spring-tx.xsd"> 
<!-- 1. 数据源对象: C3P0连接池 -->
<bean id="dataSource" class="com.mchange.v2.c3p0.ComboPooledDataSource">
<property name="driverClass" value="com.mysql.jdbc.Driver"></property>
<property name="jdbcUrl" value="jdbc:mysql:///hib-demo"></property>
<property name="user" value="root"></property>
<property name="password" value="123456"></property>
<property name="initialPoolSize" value="3"></property>
<property name="maxPoolSize" value="10"></property>
<property name="maxStatements" value="100"></property>
<property name="acquireIncrement" value="2"></property>
</bean>
<!-- 2. 创建JdbcTemplate对象 -->
<bean id="jdbcTemplate" class="org.springframework.jdbc.core.JdbcTemplate">
<property name="dataSource" ref="dataSource"></property>
</bean>
<!-- 3. dao实例 -->
<bean id="deptDao" class="cn.itcast.a_tx.DeptDao">
<property name="jdbcTemplate" ref="jdbcTemplate"></property>
</bean>
<!-- 4. service实例 -->
<bean id="deptService" class="cn.itcast.a_tx.DeptService">
<property name="deptDao" ref="deptDao"></property>
</bean>
<!-- #############5. Spring声明式事务管理配置############### -->

<!-- 5.1 配置事务管理器类 -->
<bean id="txManager" class="org.springframework.jdbc.DataSourceTransactionManager">
<property name="dataSource" ref="dataSource"></property>
</bean>
<!-- 5.2 配置事务增强(如果管理事务?) -->
<tx:advice id="txAdvice" transaction-manager="txManager">
<tx:attributes>
<tx:method name="*" read-only="false"/>
</tx:attributes>
</tx:advice>
<!-- 5.3 Aop配置： 拦截哪些方法(切入点表表达式) + 应用上面的事务增强配置 -->
<aop:config>
<aop:pointcut expression="execution(* cn.itcast.a_tx.DeptService.save(..))" id="pt"/>
<aop:advisor advice-ref="txAdvice" pointcut-ref="pt"/>
</aop:config>
</beans>