Freemarker中通过request获得contextPath

<!-- config Freemarker View Resolver-->
       <bean id="viewResolver"
         class="org.springframework.web.servlet.view.freemarker.FreeMarkerViewResolver">
            <property name="viewClass" value="org.springframework.web.servlet.view.freemarker.FreeMarkerView"/>
         <property name="contentType" value="text/html;charset=utf-8"/>
         <property name="cache" value="true"/>
         <property name="suffix" value=".ftl"/>
         <property name="order" value="0"/>
         <property name="requestContextAttribute" value="request"/>
       </bean> 

2. 在ftl文件中使用request

　 <#assign ctx=request.getContextPath()>