Solved

HOW TO GENERATE pdf FILE DYNAMICALLY USING ITEXT

Posted on 2006-10-25
4
250 Views
Last Modified: 2010-03-31
I am trying to generate a PDF file dynamically using iText (open source library).  I succeded in writing to a .pdf file which i can store in a specific directory on my computer. But I need to give the user the ability to store the file anywhere they like. I tried writing the code for that but when I run the code it doesn't show anythng. Any help will be greatly apprecited.
 
Following is the code which i am crrently working on and which shows nothing
-----------------------------------------------------------------------------------------------------------------
private void export_leadershipStaff3(HttpServletRequest request, HttpServletResponse response) {

        Document document = new Document(PageSize.A4);
        try {
            ByteArrayOutputStream baos = new ByteArrayOutputStream();
            PdfWriter writer = PdfWriter.getInstance(document, baos);
            writer.setViewerPreferences(
                    PdfWriter.AllowPrinting |
                    PdfWriter.PageLayoutSinglePage);
            document.open();
            document.add(new Paragraph("First page of the document."));
            response.setContentLength(baos.size());
            ServletOutputStream out = null;
                out = response.getOutputStream();
                baos.writeTo(out);
            out.flush();
        } catch (DocumentException ex) {
        }
        catch (IOException ex2) {
            }
    }
0
Comment
Question by:huzefaq
  • 2
4 Comments
 
LVL 14

Accepted Solution

by:
hoomanv earned 500 total points
ID: 17805260
Try
response.setContentType("application/pdf");
response.setHeader("Content-Disposition","attachment; filename=name.pdf");
0
 

Author Comment

by:huzefaq
ID: 17805473
hoomanv I tried the following code but it still it shows a blank screen

---------------------------------------------------------------------------

    private void export_leadershipStaff2(HttpServletRequest request, HttpServletResponse response) {

        Document document = new Document(PageSize.A4);
        try {
            ByteArrayOutputStream baos = new ByteArrayOutputStream();
            PdfWriter writer = PdfWriter.getInstance(document, baos);
            writer.setViewerPreferences(
                    PdfWriter.AllowPrinting |
                    PdfWriter.PageLayoutSinglePage);
            document.open();
            response.setContentLength(baos.size());
            ServletOutputStream out = null;
                out = response.getOutputStream();
                baos.writeTo(out);
                response.setContentType("application/pdf");
                response.setHeader("Content-Disposition","attachment; filename=name.pdf");
            out.flush();
        } catch (DocumentException ex) {
        }
        catch (IOException ex2) {
            }
    }
0
 
LVL 14

Assisted Solution

by:hoomanv
hoomanv earned 500 total points
ID: 17805536
baos.writeTo(out); should be called after setting all headers
0
 
LVL 10

Expert Comment

by:jaggernat
ID: 17806298
as hoomanv said

response.setContentType("application/pdf");
 
should work
0

Featured Post

PRTG Network Monitor: Intuitive Network Monitoring

Network Monitoring is essential to ensure that computer systems and network devices are running. Use PRTG to monitor LANs, servers, websites, applications and devices, bandwidth, virtual environments, remote systems, IoT, and many more. PRTG is easy to set up & use.

Question has a verified solution.

If you are experiencing a similar issue, please ask a related question

Suggested Solutions

Java had always been an easily readable and understandable language.  Some relatively recent changes in the language seem to be changing this pretty fast, and anyone that had not seen any Java code for the last 5 years will possibly have issues unde…
Are you developing a Java application and want to create Excel Spreadsheets? You have come to the right place, this article will describe how you can create Excel Spreadsheets from a Java Application. For the purposes of this article, I will be u…
Viewers learn about the “for” loop and how it works in Java. By comparing it to the while loop learned before, viewers can make the transition easily. You will learn about the formatting of the for loop as we write a program that prints even numbers…
Viewers will learn about the different types of variables in Java and how to declare them. Decide the type of variable desired: Put the keyword corresponding to the type of variable in front of the variable name: Use the equal sign to assign a v…

803 members asked questions and received personalized solutions in the past 7 days.

Join the community of 500,000 technology professionals and ask your questions.

Join & Ask a Question