spring-portlet生成pdf文件

print ?

生成PDF有两种方式：一种是用java直接产生PDF文件，但不能定制格式；另一种是使用PDF的模板，由java填充数据，好处可以定制输出格式。如下代码是使用PDF模板来填充数据

注意在Controller里必须使用ResourceRequest和ResourceResponse来获取输出流

需要注意的是，jsp页面上用href来请求下载功能

[html] view plain copy print ?

1. @RequestMapping(params = "action=getPDF")
2. public void getPDF(ResourceRequest request, ResourceResponse response)
3. throws Exception {
4. String pdfType = request.getParameter("pdfType");
6. response.reset();
7. response.setContentType("application/pdf");
8. String attachmentFilename = "";
9. int modelId = 0;
10. if (pdfType.equals(MailTemplate.TYPE_PAYMENT)) {
11. modelId = regConfig.getReceiptId();
12. attachmentFilename = "attachment; filename=\"receipt.pdf" + "\"";
13. } else if (pdfType.equals(MailTemplate.TYPE_INVITATION)) {
14. modelId = regConfig.getInvitationId();
15. attachmentFilename = "attachment; filename=\"invitation.pdf" + "\"";
16. } else {
17. return;
18. }
19. response.setProperty("Content-disposition", attachmentFilename);
20. String filepath = defaultTemplateContext.getDefaultDir()
21. + File.separator;
23. filepath += MailTemplate.DEF_INVITATION_MODEL_PDF;
25. ByteArrayOutputStream ous = null;
26. InputStream ins = null;
27. try {
28. Map<String, Object> data = 。。。。。。;
29. PDFTemplatePrinter rprinter = new PDFTemplatePrinter(filepath);
30. ous = rprinter.getPDFOutpuStream(data);
31. ins = new ByteArrayInputStream(ous.toByteArray());
32. int b = -1;
33. while ((b=ins.read())!=-1) {
34. out.write(b);
35. }
37. } catch (Exception e) {
38. e.printStackTrace();
39. } finally {
40. try {
41. ins.close();
42. ous.close();
43. } catch (IOException e) {
44. // TODO Auto-generated catch block
45. e.printStackTrace();
46. }
48. }
49. }