<bean id="dataSource" class="com.mchange.v2.c3p0.ComboPooledDataSource" >
        <property name="driverClass" value="${dataSource.className}" />
        <property name="jdbcUrl" value="${dataSource.url}" />
        <property name="user" value="${dataSource.username}" />
        <property name="password" value="${dataSource.password}" />

        <!-- 连接关闭时默认将所有未提交的操作回滚。Default: false -->
        <property name="autoCommitOnClose" value="true" />
        <!-- 当连接池用完时客户端调用getConnection()后等待获取新连接的时间,超时后将抛出 SQLException,如设为0则无限期等待。单位毫秒。Default: 0--> 
        <property name="checkoutTimeout" value="${cpool.checkoutTimeout}" />
        <!-- 初始化时获取的连接数，取值应在minPoolSize与maxPoolSize之间。Default: 3 -->
        <property name="initialPoolSize" value="${cpool.minPoolSize}" />
        <!-- 连接池中保留的最小连接数 -->
        <property name="minPoolSize" value="${cpool.minPoolSize}" />
        <!-- 连接池中保留的最大连接数。Default: 15 -->
        <property name="maxPoolSize" value="${cpool.maxPoolSize}" />
        <!-- 最大空闲时间,36000秒(10小时)内未使用则连接被丢弃。若为0则永不丢弃。Default: 0 -->
        <property name="maxIdleTime" value="${cpool.maxIdleTime}" />
        <property name="maxIdleTimeExcessConnections" value="${cpool.maxIdleTimeExcessConnections}" />
        <!-- 当连接池中的连接耗尽的时候c3p0一次同时获取的连接数。Default: 3 -->
        <property name="acquireIncrement" value="${cpool.acquireIncrement}" />
        <!-- 定义在从数据库获取新连接失败后重复尝试的次数。Default: 30 -->
        <property name="acquireRetryAttempts" value="${cpool.acquireRetryAttempts}" />
        <!-- 两次连接中间隔时间，单位毫秒。Default: 1000 -->
        <property name="acquireRetryDelay" value="${cpool.acquireRetryDelay}" />
    </bean>

    <bean id="jdbcTemplate" class="org.springframework.jdbc.core.JdbcTemplate">
        <property name="dataSource" ref="dataSource"></property>
    </bean>

    <bean id="transactionManager" class="org.springframework.jdbc.datasource.DataSourceTransactionManager">
        <property name="dataSource" ref="dataSource" />
        <property name="rollbackOnCommitFailure" value="true"/>
    </bean>

    <tx:annotation-driven transaction-manager="transactionManager"/>

    <!-- <aop:aspectj-autoproxy /> -->

    <bean id="sqlSessionFactory" class="org.mybatis.spring.SqlSessionFactoryBean">
        <property name="configLocation" value="classpath:MyBatis-Configuration.xml"></property>
        <property name="dataSource" ref="dataSource" />
        <property name="typeAliasesPackage" value="com.tiamaes.gjds.app.bean" />
    </bean>

    <!-- scan for mappers and let them be autowired -->
    <bean class="org.mybatis.spring.mapper.MapperScannerConfigurer">
        <property name="basePackage" value="com.tiamaes.gjds.app.persistence" />
    </bean>