I am using SWFUpload to upload files to java servlet (spring framework). The problem is that the current web session is lost during file upload (it creates a new session). I read that it is a known bug and there are some workarounds somewhere but I can't find anything. Does anyone know how to make it work?
Thanks.
Had this on the .NET platform as well. The problem is that the Flash Object runs in a different session context than your Java App (it's effectively treated like a new client). One way to get around all of this is to effectively have the object post any necessary information needed to commit the uploads back in the querystring.
Have a look at this post on the SWFUpload forums. Adding ;jsessionid=XXX to the upload URL may work for you, or it may not; the exact cause of the problem appears unclear. Note that Flash uses the Wininet stack (same as IE), so if you are using a different browser you need to somehow get the session cookie (known to your browser) into the IE cookie.
Vinay Sajip's answer hv all to be right, but doesnt work with me.
thats what i've done :
1 - Set my servlet (in this case, doPost) to synchronized.
protected synchronized void doPost(HttpServletRequest request, HttpServletResponse response)
2 - in upload_url from swfupload, i passed through the session ID
upload_url: "Controller?action=33&JSESSIONID=<%=request.getSession().getId()%>",
3 - back to the servlet, i forced the cookie JSESSIONID to my "old" session:
if (request.getParameter("JSESSIONID")!=null) {
Cookie userCookie = new Cookie("JSESSIONID", request.getParameter("JSESSIONID"));
response.addCookie(userCookie);
}
should work. i've used synchronized because to not have a "duplicate" value of sessionId. (or my firebug is crazy)