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
>
>
>
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