spring中jdbcリンクデータベース配置ファイル

<context:property-placeholder location="classpath:/jdbc.properties"/>
    <bean id="dataSource" class="org.springframework.jdbc.datasource.DriverManagerDataSource">
        <property name="url" value="${url}">property>
        <property name="driverClassName" value="${driverClass}">property>
        <property name="username" value="${userid}">property>
        <property name="password" value="${password}">property>
    bean>
    
    <bean id="jdbcTemplate" class="org.springframework.jdbc.core.JdbcTemplate">
        <property name="dataSource" ref="dataSource">property>
    bean>