问题描述
JasperReport jasperReport = (JasperReport) JRLoader.loadObjectFromFile("report1.jasper");JasperPrint jasperprint2 = JasperFillManager.fillReport(jasperReport, new HashMap(), new JRBeanCollectionDataSource(DailySalesDataSource.getBeanCollection()));JRViewer jr = new JRViewer(jasperprint2);JFrame jf = new JFrame();jf.setSize(500, 500);jf.add(jr);jf.setVisible(true);这样，会弹出一个窗口，点窗口上面的保存按钮时，只能保存.jrprint这个文件，请问如何激活所有保存文件类型？
解决方案
private void toPdfbytes(HttpServletResponse response,byte[] bb,String filename) throws SystemException {response.reset();response.setContentType("APPLICATION/OCTET-STREAM");response.setHeader("Content-Disposition","attachment; filename="" + filename + """);response.setContentLength(bb.length);try {ServletOutputStream ouputStream = response.getOutputStream();ouputStream.write(bb, 0, bb.length);ouputStream.flush();ouputStream.close(); } catch (IOException e) { e.printStackTrace(); throw new SystemException(e.getMessage()); }}response.setContentType这段，对应不同的类型！或者你直接使用： //导出为Html //JasperExportManager.exportReportToHtmlFile(jasperPrint, "c:/area.html"); //导出为pdf //OutputStream output = new FileOutputStream(new File("c:/catalog.pdf")); //JasperExportManager.exportReportToPdfStream(jasperPrint,output);