If not an action type web-framework then how can it be done from a web page? Are there any examples anywhere? The current functionality of my applicaiton uses struts to map the action that gets the session info to update the database and generate a pdf. It currently writes to a file but I somehow need to stream to the browser.
Thanks, Diana --- Bill Ensley <[EMAIL PROTECTED]> wrote: > It is very difficult if not impossible to stream > back to a browser > Using ANY action type web-framework. > > -Bill Ensley > > > -----Original Message----- > From: [EMAIL PROTECTED] > [mailto:[EMAIL PROTECTED] > On Behalf Of Diana K. > Woodhouse > Sent: Thursday, December 15, 2005 9:29 AM > To: Diana K. Woodhouse; bruno; iText Mail Group > Subject: Re: [iText-questions] How do I stream > output to browser instead of > a file > > Nevermind this null pointer exception. I made the > Pdf class extend Action > and added this method. > > public ActionForward execute( > ActionMapping mapping, > ActionForm form, > HttpServletRequest request, > HttpServletResponse response ) throws > IOException, ServletException { > > HttpSession httpsession = > request.getSession(true); > try { > ... > > NEW PROBLEM with this: The action needs to return > something. How can the > action return the Pdf in the Outputstream????? > > > > --- "Diana K. Woodhouse" <[EMAIL PROTECTED]> > wrote: > > > Thanks everybody for your replies! I've changed > the method > > createPdf() below to stream to an output buffer > like in the tutorial > > example. I'm getting a null pointer exception in > the close method. > > > > // NEW > > private ByteArrayOutputStream baos; > > private ServletOutputStream out; > > private ServletResponse response; > > > > public Pdf(String filename) { > > > > try { > > > > // we create a reader for a certain document > > infilename = path + "form.pdf"; > > > > > > // we create a reader for a certain > document > > reader = new PdfReader(infilename); > > > > > > // we retrieve the size of the first page > > pager = reader.getPageSize(1); > > > > // step 1: creation of a document-object > > document = new Document(pager, 50, 50, 50, 50); > > > > // NEW > > baos = new ByteArrayOutputStream(); > > > > // step 2: we create a writer that listens to > > // the document > > > > // OLD > > //writer = PdfWriter.getInstance(document, > new > > FileOutputStream(outfilename)); > > > > // NEW > > writer = PdfWriter.getInstance(document, baos); > > > > // step 3: we open the document > > document.open(); > > > > // step 4: we add content > > cb = writer.getDirectContent(); > > document.newPage(); > > pagew = writer.getImportedPage(reader, 1); > > cb.addTemplate(pagew, 0, 0); > > // we tell the ContentByte we're ready to draw > text > > cb.beginText(); > > > > bf = > BaseFont.createFont(BaseFont.HELVETICA, > > BaseFont.CP1252, BaseFont.NOT_EMBEDDED); > > cb.setFontAndSize(bf, 10); > > > > > > > pdf.setConfnumber(record.getConfnumber()); > > cb.endText(); > > } catch (Exception e) {} > > } > > > > public void close() { > > // step 5: we close the document > > document.close(); > > > > try { > > > > // NEW > > > > response.setContentType("application/pdf"); > > > response.setContentLength(baos.size()); > > out = response.getOutputStream(); > > baos.writeTo(out); > > out.flush(); > > } catch (Exception e) { > > log.error("Function pdf.close failed: " + > e); > > > > } > > } > > > > > > Error message is: > > > > Function pdf.close failed: > > java.lang.NullPointerException > > > > > > > > __________________________________________________ > > Do You Yahoo!? > > Tired of spam? Yahoo! Mail has the best spam > protection around > > http://mail.yahoo.com > > > > > > > ------------------------------------------------------- > > This SF.net email is sponsored by: Splunk Inc. Do > > you grep through log files > > for problems? Stop! Download the new AJAX search > > engine that makes > > searching your log files as easy as surfing the > > web. DOWNLOAD SPLUNK! > > > http://ads.osdn.com/?ad_id=7637&alloc_id=16865&op=click > > _______________________________________________ > > iText-questions mailing list > > [email protected] > > > https://lists.sourceforge.net/lists/listinfo/itext-questions > > > > > __________________________________________________ > Do You Yahoo!? > Tired of spam? Yahoo! Mail has the best spam > protection around > http://mail.yahoo.com > > > ------------------------------------------------------- > This SF.net email is sponsored by: Splunk Inc. Do > you grep through log files > for problems? Stop! Download the new AJAX search > engine that makes > searching your log files as easy as surfing the > web. DOWNLOAD SPLUNK! > http://ads.osdn.com/?ad_id=7637&alloc_id=16865&op=click > _______________________________________________ > iText-questions mailing list > [email protected] > https://lists.sourceforge.net/lists/listinfo/itext-questions > > > > ------------------------------------------------------- > This SF.net email is sponsored by: Splunk Inc. Do > you grep through log files > for problems? Stop! Download the new AJAX search > engine that makes > searching your log files as easy as surfing the > web. DOWNLOAD SPLUNK! > http://ads.osdn.com/?ad_id=7637&alloc_id=16865&op=click > _______________________________________________ > iText-questions mailing list > [email protected] > https://lists.sourceforge.net/lists/listinfo/itext-questions > === message truncated === __________________________________________________ Do You Yahoo!? Tired of spam? Yahoo! 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