PDF Export help needed! :)

[2006 IR Open Dicussion]

By: finzic - finzic

PDF Export help needed! :)

2006-03-28 08:01

Hi all,

I have a JasperPrint obj (this.jp) in my app that works fine since it can be printed or displayed as a preview.

 

I need to export it to PDF file, so I tried to follow the demo code:

 

JasperExportManager.exportReportToPdfFile(this.jp, "myFile.pdf");

 

but what I get is:

ExceptionConverter: java.lang.NullPointerException

 

at com.lowagie.text.pdf.PdfDocument.close(Unknown Source)

 

at com.lowagie.text.Document.close(Unknown Source)

 

at net.sf.jasperreports.engine.export.JRPdfExporter.exportReportToStream(JRPdfExporter.java:438)

 

at net.sf.jasperreports.engine.export.JRPdfExporter.exportReport(JRPdfExporter.java:278)

 

at net.sf.jasperreports.engine.JasperExportManager.exportReportToPdfFile(JasperExportManager.java:126)

 

at mycode.JReportBuilder.creaPDF(xxxxxxx)

 

 

Any suggestion here will be extremely important!

TIA,

Luca.

 

 

 

 

By: legion - cajinadiaz

RE: PDF Export help needed! :)

2006-03-28 08:11

Your application is a Web Application ??

 

 

 

 

By: legion - cajinadiaz

RE: PDF Export help needed! :)

2006-03-28 08:19

Anyway.. I have a Web Application and I'm using this code:

 

/*GENERATE THE OUTPUT AS PDF..*/

public void generatePDFOutput(

HttpServletResponse resp,

Map parameters,

JasperReport jasperReport)

throws JRException, NamingException, SQLException, IOException {

 

byte[] bytes =

JasperRunManager.runReportToPdf( jasperReport, parameters, getMyConnection());

resp.setContentType("application/pdf");

resp.setContentLength(bytes.length);

OutputStream ouputStream = resp.getOutputStream();

ouputStream.write(bytes, 0, bytes.length);

ouputStream.flush();

ouputStream.close();

}

 

 

 

 

 

By: finzic - finzic

RE: PDF Export help needed! :)

2006-03-29 07:00

Hi cajinadiaz,

I tried to follow your suggestion but it did not

work , I'm afraid: here's my code.

 

OutputStream os = new FileOutputStream("c:/ciao.pdf");

 

byte[] reportByteArray ;

JasperRunManager.

reportByteArray = JasperExportManager.exportReportToPdf(this.jp);

os.write(reportByteArray);

os.close();

 

... and this is what I got... always the same exception...

 

ExceptionConverter: java.lang.NullPointerException

 

at com.lowagie.text.pdf.PdfDocument.close(Unknown Source)

 

at com.lowagie.text.Document.close(Unknown Source)

 

at net.sf.jasperreports.engine.export.JRPdfExporter.exportReportToStream(JRPdfExporter.java:438)

 

at net.sf.jasperreports.engine.export.JRPdfExporter.exportReport(JRPdfExporter.java:257)

 

at net.sf.jasperreports.engine.JasperExportManager.exportReportToPdf(JasperExportManager.java:188)

 

it seems it's the export in itself that doesn't succeed.

The object this.jp is the same JasperPrint I use after the above code to build the report preview so it is well-formed...

any further idea?

TIA! Luca.

 

 

 

 

By: finzic - finzic

RE: PDF Export help needed! :)

2006-03-31 23:13

Solved!

The problem was:

I had an old iText library version in my classpath that got referenced before newer v1.3.1!

Wiping away old lib got me shine!

 

Thanks!

Luca.