I mean going to menu "Clear private data" (in German version it is "Neueste Chronik löschen"). Yes Cookies are also removed. For now I implemented my PDF generator as separate Servlet but it has same behaviour unless I disable caching: // Set to expire far in the past. response.setHeader("Expires", "Sat, 6 May 1995 12:00:00 GMT"); if(request.getHeader("User-Agent").contains("MSIE")){ // Set IE extended HTTP/1.1 no-cache headers (use addHeader). response.addHeader("Cache-Control", "post-check=0, pre-check=0"); }else{ // Set standard HTTP/1.1 no-cache headers. // 29.10.10 OE Not working with IE 7 response.setHeader("Cache-Control", "no-store, no-cache, must-revalidate"); } // Set IE extended HTTP/1.1 no-cache headers (use addHeader). response.addHeader("Cache-Control", "post-check=0, pre-check=0"); // Set standard HTTP/1.0 no-cache header. response.setHeader("Pragma", "no-cache");
I don't really like this workaround with checking User agnet. But it is only way to make it work properly with Firefox and IE. 2010/10/28 Stefan Lindner <lind...@visionet.de> > What do you mean with "After clearing chronik"? Does this mean that the > session cookie is lost after "After clearing chronik"? > You may take a look at the generated HTML: > > > > Onclick=".....?wicket:interface=:5:.............:pdfIcon:pdf::ILinkListener::" > > This refers to a version oft he page that is no longer valid after the > session is lost. Refreshing the page starts a new session and it works > again. > You must (I don't know how at the moment) produce a sort of bookemarkable > url for this case I think. My guess would be to use a separate servlet for > this. > > Stefan > > -----Ursprüngliche Nachricht----- > Von: Alex Zeit [mailto:zeita...@googlemail.com] > Gesendet: Donnerstag, 28. Oktober 2010 18:21 > An: users@wicket.apache.org > Betreff: Re: Problems displaying a PDF from stream > > Now it works with IE and this is most important thing. Thank you very much! > However the problem with Firefox remains. After clearing chronik while Pdf > document is open if I click the link comes "page expired", after refreshing > the main page with link if I click link again comes empty page. > > 2010/10/28 Alex Zeit <zeita...@googlemail.com> > > > Thanks a lot Stefan I will try it right now > > > > > > 2010/10/28 Stefan Lindner <lind...@visionet.de> > > > >> Try this: > >> > >> > >> > >> public class MyResourceStreamWriter extends > >> AbstractResourceStreamWriter { > >> private static final long serialVersionUID = 1L; > >> > >> public MyResourceStreamWriter() { > >> } > >> > >> @Override > >> public void write(final OutputStream output) { > >> // !!!!! prduce output here and stream it to > output > >> try { > >> output.flush(); > >> } catch (Exception e) { > >> e.printStackTrace(); > >> } > >> } > >> > >> @Override > >> public String getContentType() { > >> return "application/pdf"; > >> } > >> } > >> > >> > >> > >> > >> > >> Link<T> pdfLink = new Link<T>("pdf") { > >> private static final long serialVersionUID = 1L; > >> @Override > >> public void onClick() { > >> ResourceStreamRequestTarget rsrt = new > >> ResourceStreamRequestTarget(new MyResourceStreamWriter()); > >> //rsrt.setFileName("file.pdf"); // use this if > >> yout want your browser to ask you wheter you want to save the > >> cownloaded PDF in fil e"file.pdf" > >> getRequestCycle().setRequestTarget(rsrt); > >> } > >> }; > >> > >> > >> pdfLink.setPopupSettings(new > >> PopupSettings(PopupSettings.RESIZABLE > >> | PopupSettings.SCROLLBARS)); > >> add(pdfLink); > >> > >> > >> Stefan > >> > >> > >> -----Ursprüngliche Nachricht----- > >> Von: Alex Zeit [mailto:zeita...@googlemail.com] > >> Gesendet: Donnerstag, 28. Oktober 2010 15:21 > >> An: users@wicket.apache.org > >> Betreff: Re: Problems displaying a PDF from stream > >> > >> Yes > >> > >> 2010/10/28 Stefan Lindner <lind...@visionet.de> > >> > >> > Do you want to open the PDF in a separate window? Klick on some > >> > button and open a new browser window with pdf? > >> > > >> > Stefan > >> > > >> > -----Ursprüngliche Nachricht----- > >> > Von: Alex Zeit [mailto:zeita...@googlemail.com] > >> > Gesendet: Donnerstag, 28. Oktober 2010 15:14 > >> > An: users@wicket.apache.org > >> > Betreff: Problems displaying a PDF from stream > >> > > >> > While trying to display a PDF document from stream following > >> > problems > >> > arrise: > >> > IE7: > >> > Resource can not be displaied at all. > >> > > >> > Firefox 3.6.12: > >> > PDF is displaied but if Chronk is cleared in Firefox while document > >> > is open then it cannot be displaied again. It is possible only > >> > after restarting Firefox. > >> > > >> > No errors in log. > >> > > >> > The code: > >> > public class PdfGen extends WebResource { > >> > > >> > public PdfGen() { > >> > setCacheable(false); > >> > } > >> > > >> > @Override > >> > public IResourceStream getResourceStream() { > >> > IResourceStream resourceStream = new > >> > AbstractResourceStreamWriter() { > >> > private static final long serialVersionUID = > >> > 1934248394380163944L; > >> > public void write(OutputStream output) { > >> > testItextDirect(output); > >> > } > >> > public String getContentType() { > >> > return "application/pdf"; > >> > } > >> > }; > >> > return resourceStream; > >> > } > >> > > >> > private void testItextDirect(OutputStream output){ > >> > try { > >> > Document document = new Document(); > >> > PdfWriter.getInstance(document, output); > >> > document.open(); > >> > document.add(new Paragraph("Hello World")); > >> > document.add(new Paragraph(new Date().toString())); > >> > document.close(); > >> > } catch (DocumentException de) { > >> > try { > >> > throw new IOException(de.getMessage()); > >> > } catch (IOException e) { > >> > e.printStackTrace(); > >> > } > >> > } > >> > } > >> > } > >> > > >> > > >> > in the init() of AuthenticatedWebApplication SharedResource added > >> > like > >> > this: > >> > getSharedResources().add("pdfGen", new PdfGen()); > >> > > >> > Any help would be highly appreciated Alex > >> > > >> > ------------------------------------------------------------------- > >> > -- To unsubscribe, e-mail: users-unsubscr...@wicket.apache.org > >> > For additional commands, e-mail: users-h...@wicket.apache.org > >> > > >> > > >> > >> --------------------------------------------------------------------- > >> To unsubscribe, e-mail: users-unsubscr...@wicket.apache.org > >> For additional commands, e-mail: users-h...@wicket.apache.org > >> > >> > > > > --------------------------------------------------------------------- > To unsubscribe, e-mail: users-unsubscr...@wicket.apache.org > For additional commands, e-mail: users-h...@wicket.apache.org > >