Cukup cari pemalam muat naik ajax http://www.th7.cn/web/ajax/201406/42547.shtml

<form id="forminfo" action="http://.../saveSnapshot.xhtml" method="post" enctype="multipart/form-data" >
         apiName:<input id="apiName" name="apiName" value="DiskTwistApi">
         <br>
         code:<input id="code" name="code" value="+r3UghilkTSfOFLfubg==">
         <br>
         timestamp:<input id="timestamp" name="timestamp" value="">
         <br>
         signature<input id="signature" name="signature" value="">
         <br>
         sn:<input id="sn" name="sn" style="width:500px" value="AUGUST281"/> 
         <br>
         orderId:<input id="orderId" name="orderId" style="width:500px" value="8136"/> 
         <br>
         img:<input id="img" name="fileInput" type="file"/>
         <br>
         <button type="button" onclick="check()">保存</button>
    </form>

Cuba webuploader http://fex.baidu.com/webuploader/