Post a file?

Question

I have a servlet that processes incoming files (chosen using the filechooser on a form). I'd like to be able to create a new file, either in a jsp or servlet, and pass it to this servlet.
How do I pass files over to the servlet without using a form (for example, I want to pass over a File object). And how do I parse the request at the other end--can I use a diskfileupload just the same way I use for a form?
Thanks.

Answer 1

Sorry if this code isn't complete and/or perfectly setup for you, i just cut & pasted it, but you get the point, hope this helps (it works for me):
            FileInputStream istr = null;
            OutputStream ostr = null;
            response.setContentType("application/binary");
            response.setHeader(
                "Content-Disposition",
                "attachment; filename=\"" + file.getName() + "\";");
            try {
                istr = new FileInputStream(file);
                ostr = response.getOutputStream();
                int curByte = -1;
                while ((curByte = istr.read()) != -1) {
                    ostr.write(curByte);
                ostr.flush();
            catch (Exception ex) {
                throw ex;
            }