video.html 加入 在<script type="text/javascript" src="../../third-party/swfupload/swfupload.js"></script>后加上swfupload.cookies.js 引用

<script type="text/javascript" src="../../third-party/swfupload/swfupload.cookies.js"></script>

提交时会自动把cookie加到form里 ，服务端使用request获取。