struts2文件上传与下载， <s:form name="Myform" action="/fileManage/upload" method="post" enctype="multipart/form-data" theme="simple" >
<s:fielderror></s:fielderror>
<s:file name="image" label="文件"></s:file>
<s:submit id="submit" value="sbumit"></s:submit>
</s:form>
