In my previous blog, I demonstrate how to export a Jasper report with the Java class JRHtmlExporter to an HTML email. In this blog, I will include the codes I use to export a Jasper report to other commonly used file formats. In all cases, I start with a JasperPrint object from a given Jasper Reports template and create the resulting file as an attachment in a HTTP response.
PDF file
For PDF file, you may just use the static method exportReportToPdf in class net.sf.jasperreports.engine.JasperExportManager as shown below:
byte[] pdfBytes = JasperExportManager.exportReportToPdf(print);
response.setContentType(“application/pdf”);
response.setHeader(“Content-Disposition”, “attachment;filename=example.pdf”);
response.getOutputStream().write(pdfBytes);
response.flushBuffer();
MS Excel xlsx file
For MS Excel 2007 or 2010 file, use class net.sf.jasperreports.engine.export.ooxml.JRXlsxExporter:
JRXlsxExporter exporter = new JRXlsxExporter();
exporter.setParameter(JRExporterParameter.JASPER_PRINT, print);
ByteArrayOutputStream os = new ByteArrayOutputStream();
exporter.setParameter(JRExporterParameter.OUTPUT_STREAM, os);
exporter.exportReport();response.setContentType(“application/vnd.openxmlformats-officedocument.spreadsheetml.sheet”);
response.setHeader(“Content-Disposition”, “attachment;filename=example.xlsx”);
response.getOutputStream().write(os.toByteArray());
response.flushBuffer();
Note the content type set in the response header.
MS Excel xls file
If you need to export your report in older Excel file format, use class net.sf.jasperreports.engine.export.JRXlsExporter similar to codes above and replace the content type in the response header with “application/vnd.ms-excel” and filename suffix to xls:
JRXlsExporter exporter = new JRXlsExporter();
exporter.setParameter(JRExporterParameter.JASPER_PRINT, print);
ByteArrayOutputStream os = new ByteArrayOutputStream();
exporter.setParameter(JRExporterParameter.OUTPUT_STREAM, os);
exporter.exportReport();
response.setContentType(“application/vnd.ms-excel”);
response.setHeader(“Content-Disposition”, “attachment;filename=example.xls”);
response.getOutputStream().write(os.toByteArray());
response.flushBuffer();
CSV file
For csv files, use class net.sf.jasperreports.engine.export.JRCsvExporter
JRCsvExporter exporter = new JRCsvExporter();
exporter.setParameter(JRExporterParameter.JASPER_PRINT, print);
StringBuffer buffer = new StringBuffer();
exporter.setParameter(JRExporterParameter.OUTPUT_STRING_BUFFER, buffer);
exporter.exportReport();response.setContentType(“text/csv”);
response.setHeader(“Content-Disposition”, “attachment;filename=” + getFileName(name) + “.csv”);
response.getOutputStream().write(buffer.toString().getBytes());
response.flushBuffer();
Other file formats
The Jasper Reports API provides quite a few other exporters. Look at the Java Doc here .
