<%@ page contentType="text/html;charset=GBK"%>
<%
    String strAnnexPath = "/upload/doc/1200467595952/a.exe";
%>
<form name="formHidden" method="post">
  <input type="hidden" name="annexPath" value="<%=strAnnexPath%>">
</form>
<script language="javascript">
    var vAnnexPath = formHidden.annexPath.value;
    var vUrl = "../" + vAnnexPath;
    document.location.href = vUrl;
</script>