使用ireport打印数据，servlet里面的固定写法。。。

来源：互联网发布：vue.js input不可编辑编辑：程序博客网时间：2024/06/05 21:59

if ("html".equals(condition)) {
               PrintWriter pw = response.getWriter();
               response.setContentType("text/html;charset=UTF-8");
               response.setHeader("pragma", "no-cache");
               response.setHeader("Cache-Control", "no-cache");
               response.setDateHeader("Expires", 0);
               JRHtmlExporter html = new JRHtmlExporter();
               html.setParameter(JRExporterParameter.JASPER_PRINT, print);
               html.setParameter(JRExporterParameter.OUTPUT_WRITER, pw);
               html.setParameter(JRHtmlExporterParameter.IS_OUTPUT_IMAGES_TO_DIR, Boolean.TRUE);
               html.setParameter(JRHtmlExporterParameter.IMAGES_URI, "./images/");
               html.setParameter(JRHtmlExporterParameter.IMAGES_DIR_NAME,
                       this.getServletContext().getRealPath("/images") + "\\");
               html.exportReport();
               pw.flush();
               pw.close();
           } else if ("pdf".equals(condition)) {
               response.setContentType("application/pdf;charset=utf-8");
               response.setHeader("Content-Disposition", "inline;filename=\""// attachment,inline
                       + type + ".pdf\"");
               JRExporter exporter = new JRPdfExporter();
               exporter.setParameter(JRExporterParameter.JASPER_PRINT, print);
               exporter.setParameter(JRExporterParameter.OUTPUT_STREAM, response.getOutputStream());
               exporter.setParameter(JRPdfExporterParameter.IS_ENCRYPTED, Boolean.TRUE);
               exporter.setParameter(JRPdfExporterParameter.IS_128_BIT_KEY, Boolean.TRUE);
               exporter.setParameter(JRPdfExporterParameter.PERMISSIONS,
                       Integer.valueOf(String.valueOf(PdfWriter.AllowCopy | PdfWriter.AllowPrinting)));
               exporter.exportReport();
           }

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