hi,
first to say, i'm not a great java expert and new to itext .
I'm trying to write pdfcontent direct to the browser (MSIE 6.026) .
It works fine for <document.add>, but using <PdfContentbyte> has
no effect.
Writing to the servers filesystem and redirecting the generated file
to the client is ok, but i would prefer to write to a ByteArrayOutputStream.
has anyone an idea what's wrong with this code?
thanks a lot
uwe
serverlog:
with PdfContentByte
[20/06/2003 19:43:44:290 GMT+02:00] StreamTest3: init
[20/06/2003 19:43:46:793 GMT+02:00] StreamTest3: BAOS.size()= 2074
[20/06/2003 19:43:46:893 GMT+02:00] StreamTest3: BAOS.size()= 2074
[20/06/2003 19:45:53:115 GMT+02:00] StreamTest3: destroy
without
[20/06/2003 19:45:53:165 GMT+02:00] StreamTest3: init
[20/06/2003 19:45:55:518 GMT+02:00] StreamTest3: BAOS.size()= 1916
[20/06/2003 19:45:55:619 GMT+02:00] StreamTest3: BAOS.size()= 1916
//package pdfservlet;
////////////////////////////////////////////////////////////////////////////////
import java.io.ByteArrayOutputStream;
import java.io.FileOutputStream;
import java.io.IOException;
import java.net.URL;
import javax.servlet.http.*;
import javax.servlet.*;
import com.lowagie.text.*;
import com.lowagie.text.pdf.BaseFont;
import com.lowagie.text.pdf.PdfContentByte;
import com.lowagie.text.pdf.PdfWriter;
////////////////////////////////////////////////////////////////////////////////
public class StreamTest3 extends HttpServlet {
////////////////////////////////////////////////////////////////////////////////
public void init(ServletConfig config)
throws ServletException {
super.init(config);
}
////////////////////////////////////////////////////////////////////////////////
public void doGet
(
HttpServletRequest req,
HttpServletResponse res
)
throws
ServletException,
IOException
{ doPost(req,res); }
////////////////////////////////////////////////////////////////////////////////
public void doPost(HttpServletRequest request, HttpServletResponse response)
throws IOException, ServletException {
Document document = new Document(PageSize.A4, 50, 50, 50, 50);
ByteArrayOutputStream baos = new ByteArrayOutputStream();
try {
PdfWriter writer = PdfWriter.getInstance(document,baos);
writer.getInstance(document,baos);
document.open();
/*
PdfContentByte cb = writer.getDirectContent();
cb.beginText();
BaseFont bf = BaseFont.createFont(BaseFont.HELVETICA, BaseFont.CP1252,
BaseFont.NOT_EMBEDDED);
cb.setFontAndSize(bf, 12);
String text = "Sample text for alignment";
// we show some text starting on some absolute position with a given
alignment
cb.showTextAligned(PdfContentByte.ALIGN_CENTER, text + " Center", 250,
700, 0);
cb.showTextAligned(PdfContentByte.ALIGN_RIGHT, text + " Right", 250, 650,
0);
cb.showTextAligned(PdfContentByte.ALIGN_LEFT, text + " Left", 250, 600, 0);
// we draw some text on a certain position
cb.setTextMatrix(100, 400);
cb.showText("Text at position 100,400.");
// we draw some rotated text on a certain position
cb.setTextMatrix(0, 1, -1, 0, 100, 300);
cb.showText("Text at position 100,300, rotated 90 degrees.");
// we draw some mirrored, rotated text on a certain position
cb.setTextMatrix(0, 1, 1, 0, 200, 200);
cb.showText("Text at position 200,200, mirrored and rotated 90 degrees.");
// we tell the contentByte, we've finished drawing text
cb.endText();
*/
document.add(new Chunk("HELLO STREAMTEST 3!!"));
document.close();
}
catch (DocumentException de) {log(de.getMessage());}
response.setHeader("Expires", "0");
response.setHeader("Cache-Control", "must-revalidate, post-check=0,
pre-check=0");
response.setHeader("Pragma", "public");
response.setContentType("application/pdf");
response.setContentLength(baos.size());
log(String.valueOf("BAOS.size()= "+String.valueOf(baos.size())));
ServletOutputStream out = response.getOutputStream();
baos.writeTo(out);
out.flush();
}
}
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