Re: xml-pdf servlet output timeout
bonsigno wrote: Hi, I had writen a servlet who generates a dynamic PDF document with a long elaboration time (some minutes). In the mean time the client browser that had made the servlet request, shows the errors "HTTP 500 - Internal server error" or "Unable to find the server or DNS error". The servlet elaboration continue without exception and produces the document ... but the result never arrives to the client. Someone knows more about this problem? There are some HTTP tricks to keep the browser from getting a timeout. Multipart MIME may work, spawn the PDF generator off as Java thread, push some HTML saying "Please Wait" and a space every odd second (flush the stream), and push the PDF as the second part. (maybe this helps: http://lists.w3.org/Archives/Public/www-talk/2000NovDec/0064.html ) Another possibility is to use automatic refresh, again spawn the PDF generator, push a "Please Wait" HTML, if the PDF is requested again check whether there is the generator thread, if it's still working push the HTML again, otherwise send the PDF. J.Pietschmann
RE: xml-pdf servlet output timeout
Perhaps not a direct solution - but for large documents I try to kick off the process asyncronously with JMS. I have also found- due to unreliable browser rendering of pdf documents that storing the generated document as a file in a temporary directory works well. Because there is an asyncronous process, we have to poll to determine when the document is complete. Hope this is helpful Neil Wright -Original Message- From: bonsigno [mailto:[EMAIL PROTECTED] Sent: Wednesday, May 08, 2002 3:18 AM To: [EMAIL PROTECTED] Subject: xml-pdf servlet output timeout Importance: High Hi, I had writen a servlet who generates a dynamic PDF document with a long elaboration time (some minutes). In the mean time the client browser that had made the servlet request, shows the errors "HTTP 500 - Internal server error" or "Unable to find the server or DNS error". The servlet elaboration continue without exception and produces the document ... but the result never arrives to the client. Someone knows more about this problem? Thanks Roberto Bonsignori
xml-pdf servlet output timeout
Hi, I had writen a servlet who generates a dynamic PDF document with a long elaboration time (some minutes). In the mean time the client browser that had made the servlet request, shows the errors "HTTP 500 - Internal server error" or "Unable to find the server or DNS error". The servlet elaboration continue without exception and produces the document ... but the result never arrives to the client. Someone knows more about this problem? Thanks Roberto Bonsignori
