Export JasperReport to PDF OutputStream?

Question

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, b

Answer 1

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.

Answer 2

You can use a JRExporter to export the filled report to different streams and formats.

JRExporter exporter = null;

exporter = new JRPdfExporter();
exporter.setParameter(JRExporterParameter.JASPER_PRINT, jasperPrint);
exporter.setParameter(JRExporterParameter.OUTPUT_STREAM, outputStream);
exporter.exportReport();

Also note that there are other exporters:

exporter = new JRRtfExporter();
exporter = new JRHtmlExporter();

You can find more exporters available here: http://jasperreports.sourceforge.net/api/net/sf/jasperreports/engine/JRExporter.html

They should all accept an OUTPUT_STREAM parameter to control the destination of the report.

Answer 3

JRExporterParameter is deprecated in latest versions, This is a non deprecated solution of @stevemac answer

JRPdfExporter exporter = new JRPdfExporter();
exporter.setExporterInput(new SimpleExporterInput(jasperPrint));
exporter.setExporterOutput(new SimpleOutputStreamExporterOutput(outputStream));
SimplePdfExporterConfiguration configuration = new SimplePdfExporterConfiguration();
configuration.setMetadataAuthor("Petter");  //why not set some config as we like
exporter.setConfiguration(configuration);
exporter.exportReport();