Question

这是我的xml。请告诉我解析整个视频标签的DOM解析方法。实际上它有一个位置的内部标记令我感到不安。

<video>
    <video_id>39</video_id>
    <title>test video</title>
    <description>asdasd asd as</description>
    <address/>
    <location>
        <longitude>-86.785012400000030</longitude>
        <latitude>33.353920000000000</latitude>
    </location>
    <phone>2055555555</phone>
    <website>http://www.google.com</website>
    <time>154</time>
    <youtube_url>http://www.youtube.com/watch?v=sdfgd</youtube_url>
    <youtube_video_id>sdfgd</youtube_video_id>
    <category_name>User Content</category_name>
    <category_id>48</category_id>
</video>

Answer 1

本教程可能对您有所帮助 http://www.androidpeople.com/android-xml-parsing-tutorial-using-saxparser

Answer 2

以下是将xml读入Document对象，然后使用xpath评估经度节点的文本内容的示例。确保video.xml位于app的类路径中（将其放在与java相同的目录中）。

我只添加xpath作为兴趣点，向您展示如何查询返回的Document。

public class ReadXML {

    private static final DocumentBuilderFactory DOCUMENT_BUILDER_FACTORY = DocumentBuilderFactory.newInstance();
    private static final XPathFactory XPATH_FACTORY = XPathFactory.newInstance();

    public static void main(String[] args) throws Exception {
        new ReadXML().parseXml();
    }

    private void parseXml() throws Exception {
        DocumentBuilder db = DOCUMENT_BUILDER_FACTORY.newDocumentBuilder();
        InputStream stream = this.getClass().getResourceAsStream("video.xml");
        final Document document = db.parse(stream);
        XPath xPathEvaluator = XPATH_FACTORY.newXPath();
        XPathExpression expr = xPathEvaluator.compile("video/location/longitude");
        NodeList nodes = (NodeList) expr.evaluate(document, XPathConstants.NODESET);
        for (int i = 0; i < nodes.getLength(); i++) {
            Node item = nodes.item(i);
            System.out.println(item.getTextContent());
        }
    }

}

如何在android中解析xml的内部标记

2 个答案: