将JasperReport导出到PDF OutputStream？

好的，这就是它的工作原理。

JasperFillManager

JasperPrint

// get the JRXML template as a streamInputStream template = JasperReportsApplication.class    .getResourceAsStream("/sampleReport.xml");// compile the report from the streamJasperReport 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));

请享用。