java中用itext写PDF文件并输出下载

在Playframework中，通过浏览器弹出窗口的方式下载PDF文件。

PDF文件是用iText生成的，支持中文。

 

获取中文自己的一段配置文件的代码：

private static final String pdfFont = Play.configuration.getProperty("pdf.font");配置文件pdf.font=c:/windows/fonts/simsun.ttc,1 

创建文件并下载

List<Dailylog> logs = Dailylog.find("userid = ? order by pubtime desc", Long.parseLong(session.get("USERID"))).fetch();response.contentType = "application/pdf";//A4纸大小，到各个边框的距离为36 document = new Document(PageSize.A4, 36, 36, 36, 36); ByteArrayOutputStream buffer = new ByteArrayOutputStream(); try { //增加对中文的支持BaseFont baseFont = BaseFont.createFont(pdfFont, BaseFont.IDENTITY_H, BaseFont.NOT_EMBEDDED);Font fontChinese = new Font(baseFont, 12, Font.NORMAL);PdfWriter.getInstance(document, buffer);//设置表格为2列，第一列宽度为20%，第二列宽度为80%float[] widths = { 0.2f, 0.8f};PdfPTable table = new PdfPTable(widths);for(Integer i = 0 ; i < logs.size() ; i ++){PdfPCell cell = new PdfPCell(new Paragraph(logs.get(i).user.truename, fontChinese));//单元格合并cell.setColspan(2);table.addCell(cell);cell.setBorderWidth(50F);cell = new PdfPCell(new Paragraph(logs.get(i).pubtime.toString(), fontChinese));table.addCell(cell);cell = new PdfPCell(new Paragraph(logs.get(i).content, fontChinese));table.addCell(cell);}document.open();document.add(table);document.close();DataOutput output = new DataOutputStream(response.out);byte[] bytes = buffer.toByteArray();response.setHeader("Content-Disposition", "attachment; filename=" + simpleDateFormat.format(new Date()) + ".pdf");response.setHeader("Content-Length", "" + bytes.length);for(Integer i = 0; i < bytes.length ; i ++){output.write(bytes[i]);} 

输出PDF的格式为

 

------------------------ 一行一列

----|------------------- 一行两列