Naftuli Tzvi Kay Naftuli Tzvi Kay - 5 months ago 137
Java Question

Export JasperReport to PDF OutputStream?

I'm writing a pretty simple sample project for familiarizing myself with Jasper Reports. I'd like to export a report I've configured to a PDF

OutputStream
, but there's no factory method for it:

InputStream template = JasperReportsApplication.class
.getResourceAsStream("/sampleReport.xml");
JasperReport report = JasperCompileManager.compileReport(template);
JasperFillManager.fillReport(report, new HashMap<String, String>());
// nope, just chuck testa.
//JasperExportManager.exportReportToPdfStream(report, new FileOutputStream(new File("/tmp/out.pdf")));


How can I get the PDF in an
OutputStream
?

Answer

Ok, so here's how it works; JasperFillManager actually returns a JasperPrint object, so:

// get the JRXML template as a stream
InputStream template = JasperReportsApplication.class
    .getResourceAsStream("/sampleReport.xml");
// compile the report from the stream
JasperReport report = JasperCompileManager.compileReport(template);
// fill out the report into a print object, ready for export. 
JasperPrint print = JasperFillManager.fillReport(report, new HashMap<String, String>());
// export it!
File pdf = File.createTempFile("output.", ".pdf");
JasperExportManager.exportReportToPdfStream(print, new FileOutputStream(pdf));

Enjoy.

Comments