applicationContext

<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:aop="http://www.springframework.org/schema/aop"
       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">
<!--开启注解包-->
    <context:component-scan base-package="cn.kgc"></context:component-scan>
    <!--dao层 需要注入queryRunner-->
    <bean id="queryRunner" class="org.apache.commons.dbutils.QueryRunner">
        <!--<constructor-arg type="javax.sql.DataSource" ref="dataSource"></constructor-arg>-->
    </bean>

    <!--需要dataSource-->
    <bean id="dataSource" class="com.mchange.v2.c3p0.ComboPooledDataSource">
        <property name="driverClass" value="${jdbc.driver}"></property>
        <property name="jdbcUrl" value="${jdbc.url}"></property>
        <property name="user" value="${jdbc.user}"></property>
        <property name="password" value="${jdbc.password}"></property>
    </bean>
    <!--引入外部属性文件-->
    <context:property-placeholder location="jdbc.properties"></context:property-placeholder>
    <!--使用aop   解决事物问题
        事物管理器  ：  通知对象
    -->
    <aop:config>
        <!--配置切面-->
        <aop:aspect ref="trsnsactionManager">
            <!--切入点-->
            <aop:pointcut id="pointcut" expression="execution(* cn.kgc.service.impl.*.*(..))"></aop:pointcut>
            <!--织入-->
            <!--前置增强  开启事物-->
            <aop:before method="beginTransaction" pointcut="execution(* cn.kgc.service.impl.*.*(..))"></aop:before>
            <!--后置增强   提交事物-->
            <aop:after-returning method="commit" pointcut-ref="pointcut"></aop:after-returning>
            <!--异常增强   回滚事物-->
            <aop:after-throwing method="rollback" pointcut-ref="pointcut"></aop:after-throwing>
            <!--最终增强   释放资源-->
            <aop:after method="release" pointcut-ref="pointcut"></aop:after>
        </aop:aspect>
    </aop:config>
</beans>