我如何解析Java中的HTML字符串？ [英] How can I parse a HTML string in Java?

问题描述

给定字符串< table>< tr>< td> Hello World！< / td>< / tr>< / table>< / code >，获取表示它的 DOM 元素的（最简单）方法是什么？

Given the string "<table><tr><td>Hello World!</td></tr></table>", what is the (easiest) way to get a DOM Element representing it?

推荐答案

我发现这个地方（不记得在哪里）：

I found this somewhere (don't remember where):

 public static DocumentFragment parseXml(Document doc, String fragment)
 {
    // Wrap the fragment in an arbitrary element.
    fragment = "<fragment>"+fragment+"</fragment>";
    try
    {
        // Create a DOM builder and parse the fragment.
        DocumentBuilderFactory factory = DocumentBuilderFactory.newInstance();
        Document d = factory.newDocumentBuilder().parse(
                new InputSource(new StringReader(fragment)));

        // Import the nodes of the new document into doc so that they
        // will be compatible with doc.
        Node node = doc.importNode(d.getDocumentElement(), true);

        // Create the document fragment node to hold the new nodes.
        DocumentFragment docfrag = doc.createDocumentFragment();

        // Move the nodes into the fragment.
        while (node.hasChildNodes())
        {
            docfrag.appendChild(node.removeChild(node.getFirstChild()));
        }
        // Return the fragment.
        return docfrag;
    }
    catch (SAXException e)
    {
        // A parsing error occurred; the XML input is not valid.
    }
    catch (ParserConfigurationException e)
    {
    }
    catch (IOException e)
    {
    }
    return null;
}

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