IE浏览器带附件表单提交

IE浏览器表单提交报:Required MultipartFile parameter 'upload' is not present , 谷歌浏览器不报错

jsp页面

 <form:form id="xxxForm" modelAttribute="xxxx" action="" method="post" enctype="multipart/form-data">
<input id="upload" type="file" class="file" name="upload" />

后端action方法参数@RequestParam("upload") MultipartFile upload

都有 ,求大神指点迷津

http://jingyan.baidu.com/article/48b558e351fdc87f39c09a4b.html