freemarker Velocity获取request,session

<bean id="viewResolver" class="org.springframework.web.servlet.view.freemarker.FreeMarkerViewResolver">
    <property name="cache" value="true" />
    <property name="prefix" value="" />
    <property name="suffix" value=".ftl" />
    <property name="exposeSpringMacroHelpers" value="true"/>
    <property name="requestContextAttribute" value="rc"></property>
</bean>

<bean id="freeMarkerConfigurer" class="org.springframework.web.servlet.view.freemarker.FreeMarkerConfigurer">
    <property name="freemarkerVariables">
        <map>
            <entry key="base" value="#{servletContext.contextPath}" />
        </map>
    </property>
</bean>

<!-- Velocity视图解析器 默认视图 -->
<bean id="velocityViewResolver"
    class="org.springframework.web.servlet.view.velocity.VelocityViewResolver">
    <property name="contentType" value="text/html;charset=UTF-8" />
    <property name="viewNames" value="*.html" />
    <property name="suffix" value="" />
    <property name="dateToolAttribute" value="date" />
    <property name="numberToolAttribute" value="number" />
    <property name="requestContextAttribute" value="rc" />
    <property name="order" value="0" />
</bean>