DiskFileUpload upload =  new  DiskFileUpload();
 try {
    List items = upload.parseRequest(request);
    Iterator iter = items.iterator();
     while  (iter.hasNext()){
        FileItem item = (FileItem)iter.next();
         if (item.isFormField()) {
            out.println("its a field");
        }
         else {
            out.println("its a file");
            out.println(item.getName());
            File cfile =  new  File(item.getName());
            File tosave =  new  File("c:\\" + cfile.getName());
            item.write(tosave);
        }
    }
    htmlText = set_HTML("Fayl sohranen<BR>", request.getRequestURL(), 999);
}
catch (Exception e) {
    htmlText = set_HTML("Oshibka peredachi fayla:<br>" + e.getMessage(), request.getRequestURL(),  200 );
}

<form method="POST" action=" + myURLstr + " enctype="multipart/form-data">
    <p><input type="file" name="user_file"></p>
    <input type="submit" value="Otoslat`">
</form>