struts配置下载信息,处理InputStream

<action name="exportExcelReporter" class="statAnalEstablishProjectAction"> 
         <result name="success" type="stream"> 
             <param name="contentType">application/vnd.ms-excel</param> 
             <param name="contentDisposition">attachment;filename="stat.xls"</param>  
             <param name="inputName">excelFile</param>  
        </result>  
</action>