I am generating a pdf form a jsp page. If I use the same code in a
standard java class it works. If I run it from a jsp page but write it
to a file it works. However, if I attempt to return it to the browser
directly its blank, though it has the same file size, same title,
subject, author, and pages as it should. When I save this PDF and
compare it to the one that works, I see that the faulty one has a bunch
of question marks where the correct one shows black graphic blocks.
Anyone have any suggestions? Below is my JSP code.
<%@ page language="java" contentType="application/pdf" %><%@ page
import="com.lowagie.text.*,
com.lowagie.text.pdf.PdfWriter,java.io.*,java.net.*"%><%@ page
import="com.lowagie.text.pdf.BaseFont,
com.lowagie.text.pdf.PdfContentByte, com.lowagie.text.pdf.PdfTemplate,
com.lowagie.text.pdf.PdfWriter"%><%
Document document = new Document();
ByteArrayOutputStream baosPDF = new ByteArrayOutputStream();
PdfWriter docWriter = PdfWriter.getInstance(document, baosPDF);
try {
document.open();
// step 4:
PdfContentByte cb = docWriter.getDirectContent();
// we create a PdfTemplate
PdfTemplate template = cb.createTemplate(25, 25);
// we add some crosses to visualize the coordinates
template.moveTo(13, 0);
template.lineTo(13, 25);
template.moveTo(0, 13);
template.lineTo(50, 13);
template.stroke();
// we add the template on different positions
cb.addTemplate(template, 216 - 13, 720 - 13);
cb.addTemplate(template, 360 - 13, 360 - 13);
cb.addTemplate(template, 360 - 13, 504 - 13);
cb.addTemplate(template, 72 - 13, 144 - 13);
cb.addTemplate(template, 144 - 13, 288 - 13);
cb.moveTo(216, 720);
cb.lineTo(360, 360);
cb.lineTo(360, 504);
cb.lineTo(72, 144);
cb.lineTo(144, 288);
cb.stroke();
} catch (Exception e) {
System.err.println(e.getMessage());
}
// step 5: we close the document
document.close();
baosPDF.flush();
byte[] bytes = baosPDF.toByteArray();
int contentLength =bytes.length;
response.setContentLength(contentLength);
//System.out.println("Size is " + bytes.length);
for(int i = 0; i < contentLength-2; i++)
{
out.write(bytes[i]);
}
%>
Brian
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