spring </util:list>使用

 <util:list id="cars">        <ref bean="car"/>        <ref bean="car"/> </util:list>    <bean id="car" class="main.bean.Car">        <property name="name" value="baoma"/>        <property name="price" value="22"/>        <property name="speed" value="250"/>    </bean>    <bean id="person" class="main.bean.Person" p:name="audi" autowire="byName">        <property name="properties" >            <props>                <prop key="username">root</prop>                <prop key="password">123456</prop>            </props>        </property>    </bean>