protected static byte[] exportReportToPdf(JasperPrint jasperPrint)
throws JRException {
JRPdfExporter exporter = new JRPdfExporter();
ByteArrayOutputStream baos = new ByteArrayOutputStream();
exporter.setParameter(JRExporterParameter.JASPER_PRINT, jasperPrint);
exporter.setParameter(JRExporterParameter.OUTPUT_STREAM, baos);
exporter.setParameter(JRPdfExporterParameter.PDF_JAVASCRIPT,
"this.print({bUI: true,bSilent: false,bShrinkToFit: true});");
exporter.exportReport();
return baos.toByteArray();
}
We are using code like this to export a PDF document from a Jasper application.
The line
exporter.setParameter(JRPdfExporterParameter.PDF_JAVASCRIPT,
"this.print({bUI: true,bSilent: false,bShrinkToFit: true});");
adds JavaScript to send the PDF document directly to the printer.
The expected behavior is that a print dialog will come up with a preview of the PDF document.
This works fine most of the time - except I am having problems about one out of every 5-6 times in Internet Explorer 8 and Firefox.
What happens is - the print preview dialog with the PDF document does not appear or it appears with a blank document in the preview window.
-I've tried a number of different JavaScripts (different params to this.print() via exporter.setParameter
-I've tried setting different response headers such as
response.setContentType("application/pdf");
response.setHeader("Content-disposition","inline; filename=\""
+ reportName
+ "\"");
response.setContentLength(baos.size());
these did not seem to help
This seems to be an IE and FF issue. Has anyone ever dealt with this problem? I need to get it to work across all browsers 100% of the time. Perhaps a different approach to accomplish the goal of sending the PDF document export directly to the printer? or a third party library that will work across browsers?
