html转Pdf[包含文件上传]

    
    public String htmlToPdfUpload(String mess, String fileName) throws IOException {
        // 每次根据时间创建文件夹，作为文件和压缩文件保存目录
        SimpleDateFormat formatter = new SimpleDateFormat("yyyyMMddHHmmss");
        String time = formatter.format(new Date());

        File f = new File(filePath);
        if (!f.exists()) {
            f.mkdirs();
        }

        //一、先生成html文件
        File dest = new File(filePath + File.separator + fileName + time + ".htm");
        //字节输出流
        FileOutputStream fos = new FileOutputStream(dest);
        //接收字节输入流
        InputStream is = org.apache.commons.io.IOUtils.toInputStream(mess, "UTF-8");
        //为字节输入流加缓冲
        BufferedInputStream bis = new BufferedInputStream(is);
        //为字节输出流加缓冲
        BufferedOutputStream bos = new BufferedOutputStream(fos);

        int length;
        byte[] bytes = new byte[1024 * 20];
        while ((length = bis.read(bytes, 0, bytes.length)) != -1) {
            fos.write(bytes, 0, length);
        }
        bos.close();
        fos.close();
        bis.close();
        is.close();

        //二、html文件转成pdf
        try {
            String HTML = dest.getPath();
            document document = new document(PageSize.LETTER);
            PdfWriter pdfWriter = PdfWriter.getInstance(document, new FileOutputStream(filePath + File.separator + fileName + time + ".pdf"));
            document.open();
            document.addAuthor("test");
            document.addCreator("test");
            document.addSubject("test");
            document.addCreationDate();
            document.addTitle("XHTML to PDF");

            XMLWorkerHelper worker = XMLWorkerHelper.getInstance();

            worker.parseXHtml(pdfWriter, document, new FileInputStream(HTML), (InputStream) null, new AsianFontProvider());
            document.close();
        } catch (Exception e) {
            e.printStackTrace();
        }
        dest.delete();
        return fileName + time + ".pdf";
    }