com.itextpdf.text.html.simpleparser.CellWrapper cannot be cast to com.itextpdf.text.Paragraph

来源：互联网发布：淘宝刷手退款能报警编辑：程序博客网时间：2024/06/11 05:15

用itext把html生成pdf的时候，如果html是这样的话：

String content = "<table><tr><td><a>dayna</a></td></tr></table>";

就会报错：

Exception in thread "main" java.lang.ClassCastException: com.itextpdf.text.html.simpleparser.CellWrapper cannot be cast to com.itextpdf.text.Paragraph

重现的测试方法：

    private static void testATag() throws Exception {        Document document = new Document();        PdfWriter.getInstance(document,new FileOutputStream("D:\\dayna.pdf"));        document.open();        String content = "<table><tr><td><a>dayna</a></td></tr></table>";        Paragraph p = new Paragraph();        HashMap<String,Object> map = new HashMap<String,Object>();        map.put(HTMLWorker.IMG_PROVIDER, new ImgProvider());        List<Element> list = HTMLWorker.parseToList(new StringReader(content),null,map);        for(Element e : list) {            p.add(e);        }        document.add(p);        document.close();    }

解决办法：

因为生成的pdf不要求点击里面的链接，所以就简单的把所有的a标签全都去掉了。

    private static String handleATag(String content) {        content = content.replaceAll("<a.*?>", "").replaceAll("<A.*?>", "");        content = content.replaceAll("</a>", "").replaceAll("</A>", "");        return content;    }

来自Oracle的回答：

1. You're using HTMLWorker. We're abandoning HTMLWorker in favor of XML Worker.
2. Your HTML is wrong.
You have:
<table><tr><p>A p-tag where you would expect a td-tag</p></tr></table>
or
<table><tr><div>A div-tag where you would expect a td-tag</div></tr></table>
or something like that; you get the idea ;-)

0 0