itext xmlworker with javafx htmleditor

我创建了一个简单的JavaFX(2.2(FXML项目。我正在尝试将html字符串转换为不同的元素，并将它们添加到iText生成的PDF文档中的段落中。由于HTMLWorker已被弃用，我使用XMLWorker。它似乎可以使用自己编写的简单html字符串，例如：

StringReader in = new StringReader("<html><body><p>test</p></body></html>");

然而，当我尝试使用JavaFXHTMLEditor控件生成的html字符串时，我收到以下消息：

Caused by: java.lang.NoSuchMethodError: com.itextpdf.tool.xml.html.pdfelement.NoNewLineParagraph.setMultipliedLeading(F)V
at com.itextpdf.tool.xml.html.AbstractTagProcessor.currentContentToParagraph(AbstractTagProcessor.java:268)
at com.itextpdf.tool.xml.html.Span.end(Span.java:77)
at com.itextpdf.tool.xml.html.AbstractTagProcessor.endElement(AbstractTagProcessor.java:192)
at com.itextpdf.tool.xml.pipeline.html.HtmlPipeline.close(HtmlPipeline.java:207)
at com.itextpdf.tool.xml.XMLWorker.endElement(XMLWorker.java:142)
at com.itextpdf.tool.xml.parser.XMLParser.endElement(XMLParser.java:396)
at com.itextpdf.tool.xml.parser.state.ClosingTagState.process(ClosingTagState.java:71)
at com.itextpdf.tool.xml.parser.XMLParser.parseWithReader(XMLParser.java:236)
at com.itextpdf.tool.xml.parser.XMLParser.parse(XMLParser.java:214)
at com.itextpdf.tool.xml.XMLWorkerHelper.parseXHtml(XMLWorkerHelper.java:149)
at hmtltopdf.FXMLDocumentController.handleButtonAction(FXMLDocumentController.java:64)
... 54 more

我的猜测是，html字符串中有一堆XMLWorker无法识别的标记。HTML编辑器创建以下HTML字符串：

<html><head></head><body contenteditable="true"><p style="text-align: left;"><font face="'Segoe UI'">test</font></p></body></html>

如果是这样的话，有没有办法"清理"html字符串？或者我必须使用另一个HTML编辑器吗？

我的示例项目代码：

//using iText 5.3.1 and XMLWorker 5.5.0
@FXML
private HTMLEditor htmlEditor;
@FXML
private void handleButtonAction(ActionEvent event) {
    final Document document = new Document();
    PdfWriter writer = PdfWriter.getInstance(document, new FileOutputStream("D:/test/loremipsum.pdf"));
    document.open();
    //StringReader in = new StringReader("<html><body><p>test</p></body></html>"); //this works
    StringReader in = new StringReader(htmlEditor.getHtmlText()); //this does not work
    try {
        final Paragraph test = new Paragraph();
        XMLWorkerHelper.getInstance().parseXHtml(new ElementHandler() {
            @Override
            public void add(final Writable w) {
                if (w instanceof WritableElement) {
                    List<Element> elements = ((WritableElement) w).elements();
                    for (Element e : elements) {
                        test.add(e);
                    }
                }
            }
        }, in);
        document.add(test);
    } catch (IOException | DocumentException e) {
        System.out.println(e.toString());
        System.out.println(e.getMessage());
    }
    document.close();
}

编辑：

问题似乎是从使用<b>、<i>、…开始的。。。或其他标签。

啊，似乎必须使用旧的iText版本。我已经更新到iText 5.5.0，现在它似乎可以工作了。我仍然需要删除任何<br>和<hr>标签you。

//using iText 5.5.0 and XMLWorker 5.5.0
@FXML
private HTMLEditor htmlEditor;
@FXML
private void handleButtonAction(ActionEvent event) {
    final Document document = new Document();
    PdfWriter writer = PdfWriter.getInstance(document, new FileOutputStream("D:/test/loremipsum.pdf"));
    document.open();
    String htmlString = htmlEditor.getHtmlText();
    htmlString = htmlString.replace("<br>", "");
    htmlString = htmlString.replace("<br/>", "");
    htmlString = htmlString.replace("<br />", "");
    htmlString = htmlString.replace("<hr>", "<p></p>");
    htmlString = htmlString.replace("<hr/>", "<p></p>");
    htmlString = htmlString.replace("<hr />", "<p></p>");
    StringReader in = new StringReader(htmlString);
    try {
        final Paragraph test = new Paragraph();
        XMLWorkerHelper.getInstance().parseXHtml(new ElementHandler() {
            @Override
            public void add(final Writable w) {
                if (w instanceof WritableElement) {
                    List<Element> elements = ((WritableElement) w).elements();
                    for (Element e : elements) {
                        test.add(e);
                    }
                }
            }
        }, in);
        document.add(test);
    } catch (IOException | DocumentException e) {
        System.out.println(e.toString());
        System.out.println(e.getMessage());
    }
    document.close();
}

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