通过iText和XMLWorker用波兰语字母将HTML转换为PDF

KurdTt- 发表于 Dev

库尔德

我有一个带有示例的字符串-它确实很棒，但是当我添加波兰字母时，它们就消失了。我尝试过这样的事情：

        byte[] byteArray = str.getBytes(Charset.forName("UTF-8"));
        ByteArrayInputStream byteArrayInputStream = new ByteArrayInputStream(byteArray);
        worker.parseXHtml(pdfWriter, document, byteArrayInputStream, Charset.forName("UTF-8"));

但这并没有改变任何东西。如何添加波兰字母？

编辑：它仍然不起作用。

代码：

        document.open();

        XMLWorkerHelper worker = XMLWorkerHelper.getInstance();
        String str = "<html><head></head><body style=\"font-size:12.0pt; font-family:Times New Roman\">"+
                "<a href='http://www.rgagnon.com/howto.html'><b>Real's HowTo</b></a>" +
                "<h1>Show your support</h1>" +
                "<p>It DOES cost a lot to produce this site - in ISP storage and transfer fees</p>" +
                "<p>TEST POLSKICH ZNAKÓW: ĄąćCÓóŁłŻżŹźĘę</p>" +
                "<hr/>" +
                "<p>the huge amounts of time it takes for one person to design and write the actual content.</p>" +
                "<p>If you feel that effort has been useful to you, perhaps you will consider giving something back?</p>" +
                "<p>Donate using PayPalŽ</p>" +
                "<p>Contributions via PayPal are accepted in any amount</p>" +
                "<p><br/><table border='1'><tr><td>Java HowTo</td></tr><tr>" +
                "<td style='background-color:red;'>Javascript HowTo</td></tr>" +
                "<tr><td>Powerbuilder HowTo</td></tr></table></p>" +
                "</body></html>";

        byte[] byteArray = str.getBytes(Charset.forName("UTF-8"));
        ByteArrayInputStream byteArrayInputStream = new ByteArrayInputStream(byteArray);
        worker.parseXHtml(pdfWriter, document, byteArrayInputStream, Charset.forName("UTF-8"));

        document.close();

也许有人会发现一个错误。

布鲁诺·洛瓦吉

我已经获取了示例HTML，并用它来创建ParseHtml2示例。生成的PDF html_2.pdf如下所示：

在此处输入图片说明

乍一看，我看不出波兰语字符有任何问题。

我使用的代码如下所示：

public void createPdf(String file) throws IOException, DocumentException {
    // step 1
    Document document = new Document();
    // step 2
    PdfWriter writer = PdfWriter.getInstance(document, new FileOutputStream(file));
    // step 3
    document.open();
    // step 4
    String str = "<html><head></head><body style=\"font-size:12.0pt; font-family:Times New Roman\">"+
            "<a href='http://www.rgagnon.com/howto.html'><b>Real's HowTo</b></a>" +
            "<h1>Show your support</h1>" +
            "<p>It DOES cost a lot to produce this site - in ISP storage and transfer fees</p>" +
            "<p>TEST POLSKICH ZNAKÓW: \u0104\u0105\u0106\u0107\u00d3\u00f3\u0141\u0142\u0179\u017a\u017b\u017c\u017d\u017e\u0118\u0119</p>" +
            "<hr/>" +
            "<p>the huge amounts of time it takes for one person to design and write the actual content.</p>" +
            "<p>If you feel that effort has been useful to you, perhaps you will consider giving something back?</p>" +
            "<p>Donate using PayPal\u017d</p>" +
            "<p>Contributions via PayPal are accepted in any amount</p>" +
            "<p><br/><table border='1'><tr><td>Java HowTo</td></tr><tr>" +
            "<td style='background-color:red;'>Javascript HowTo</td></tr>" +
            "<tr><td>Powerbuilder HowTo</td></tr></table></p>" +
            "</body></html>";

    XMLWorkerHelper worker = XMLWorkerHelper.getInstance();
    InputStream is = new ByteArrayInputStream(str.getBytes(StandardCharsets.UTF_8));
    worker.parseXHtml(writer, document, is, Charset.forName("UTF-8"));
    // step 5
    document.close();
}

请注意，您已定义Times New Roman为字体。您的操作系统必须能够访问具有该名称的字体，这一点很重要，否则您仍然会以Helvetica结尾。

另请注意，在源代码中使用非ASCII字符被视为危害良好品味的犯罪。源代码存储为文本文件，但是使用哪种编码？无法保证您的文件将存储为UTF-8，不能保证编译器会将其读取为UTF-8，也不能保证版本控制系统将接受UTF-8，...因此，我将其替换为所有UTF-8字符的unicode值，这使我可以将源文件保留为ASCII。

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