<!-- 创建数据源 -->
    <bean id="dataSourceId" class="org.apache.commons.dbcp.BasicDataSource">
        <property name="driverClassName" value="com.mysql.jdbc.Driver"></property>
        <property name="url" value="jdbc:mysql://localhost:3306/ee19_spring_day02"></property>
        <property name="username" value="root"></property>
        <property name="password" value="1234"></property>
    </bean>
    <!-- 创建模板 ,需要注入数据源-->
    <bean id="jdbcTemplateId" class="org.springframework.jdbc.core.JdbcTemplate">
        <property name="dataSource" ref="dataSourceId"></property>
    </bean>
    
    <!-- 配置dao -->
    <bean id="userDaoId" class="com.itheima.c_dbcp.UserDao">
        <property name="jdbcTemplate" ref="jdbcTemplateId"></property>
    </bean>

<!-- 创建数据源 c3p0-->
    <bean id="dataSourceId" class="com.mchange.v2.c3p0.ComboPooledDataSource">
        <property name="driverClass" value="com.mysql.jdbc.Driver"></property>
        <property name="jdbcUrl" value="jdbc:mysql://localhost:3306/ee19_spring_day02"></property>
        <property name="user" value="root"></property>
        <property name="password" value="1234"></property>
    </bean>

    <!-- 配置dao 
        * dao 继承 JdbcDaoSupport，之后只需要注入数据源，底层将自动创建模板
    -->
    <bean id="userDaoId" class="com.itheima.e_jdbcdaosupport.UserDao">
        <property name="dataSource" ref="dataSourceId"></property>
    </bean>