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Jasper reports in JSF: life cycle issue

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By: ht_jw - ht_jw

Jasper reports in JSF: life cycle issue

2006-06-12 08:59

I am creating a Jasper report in JSF action listener.


1. The report is downloaded fine the first time.

2. It always loads the current page afterwards no matter what link/button I click.

3. It works fine again the third time.


The code is like this:


byte[] pdf = createPdfReport();


FacesContext faces = javax.faces.context.FacesContext.getCurrentInstance();

HttpServletResponse response = (HttpServletResponse) faces.getExternalContext()



response.setContentType( "application/pdf" );

response.setContentLength( pdf.length );

response.setHeader( "Content-disposition", "attachment; filename="" + createFileName() + """ );

ServletOutputStream out;



out = response.getOutputStream();

out.write( pdf );


catch ( IOException ex )


log.error( "Could not output file:" + ex );



return "next_page";


What puzzles me is it always loads the current page in #2 and it goes through Restore-view and Render-response phases only for the current page.


Anybody has success in creating PDF jasper report in JSF? Could you share it? Any suggestion is appreciated.

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Have you found a solution to this problem?  I've been trying to display a .pdf in a web page using JSF and have an issue with a file not found error.  I'm going about it differently, creating, compiling, and exporting the .pdf to a file, then using <h:panelGrid> and <iframe> to display the .pdf.  I cannot, however, get the .pdf to display without manually hitting reload inside the frame.  The report gets created, but no matter what I've tried I cannot get the program to wait long enough for the file to be written before attempting to display (I have a loop that tests whether the file is created and returns a boolean when it is).  Any insight you've gained would be a big help.  Thanks.

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