I've written
a jsp page that produces a PDF using iText
and it work great until 2 people try and
run the report at the same time.
I get a variety
of errors including
DocumentException
: Document is closed.
ConcurrentModficationException
NullPointerException
as well as
pdf's that are corrupt.
I haven't declared
a single thing on the page as being static.
All the exceptions are generated when trying
to call a Document method so I'm wondering
if maybe the document object isn't thread
safe?
This is my
document creation code.
document = new Document(PageSize.A4.rotate());
baseFont = BaseFont.createFont("Helvetica",
BaseFont.WINANSI, false);
font
= new Font(baseFont, defaultFontSize);
totalFont
= new Font(baseFont, 9);
totalFont.setStyle(Font.BOLD);
heading1Font
= new Font(baseFont, 20, Font.BOLDITALIC,
new Color(0, 0, 0));
heading2Font
= new Font(baseFont, 17, Font.BOLDITALIC,
new Color(0, 0, 0));
heading3Font
= new Font(baseFont, 14, Font.BOLDITALIC,
new Color(0, 0, 0));
defaultLayoutCell
= new Cell();
defaultLayoutCell.setBorder(Rectangle.NO_BORDER);
ByteArrayOutputStream baos = new
ByteArrayOutputStream();
writer
= PdfWriter.getInstance(document, baos);
//writer.setEncryption(false,
"", "", PdfWriter.AllowCopy | PdfWriter.AllowPrinting);
PageEventHandler pageEventHandler
= new PageEventHandler();
writer.setPageEvent(pageEventHandler);
writer.setViewerPreferences(PdfWriter.PageModeUseOutlines);
// step 3: we open the document
document.open();
Regards
Peter Wilkinson
System Developer
Mantel Solutions
Pty Ltd
PO Box 98,
35 Hamilton Road
Moorooka QLD
4105
P: +61 7 3848
0001
F: +61 7 3392
9923
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