Java - XML

DOM|SAX|JDOM

DOM
树模型，

/* parse入参其他形式 eg："cof/11.xml"
* 1. File file = new File(filepath)
* 2. InputStream xmlIns = new FileInputStream(filepath)
* 3. InputSource is = new InputSource(filepath)
* 4. InputStream in = Thread.currentThread().getContextClassLoader().getResourceAsStream(filepath) 
* 5. ByteArrayInputStream bais = new ByteArrayInputStream(xml_format_str.getBytes())//适应于xml格式的字符串 */
public static Document getDocument(String filepath) throws ParserConfigurationException, IOException, SAXException {
    //创建DOM解析器的工厂
    DocumentBuilderFactory factory = DocumentBuilderFactory.newInstance();
    //DOM解析器对象
    DocumentBuilder builder = factory.newDocumentBuilder();
    //解析XML文档得到整个Document对象
    Document doc = builder.parse(filepath);
    return doc;
}

其中，1-3默认类文件相对路径，getResourceAsStream()默认从ClassPath根下获取，不能以/开头

Element root = doc.getDocumentElement();
NodeList list = doc.getElementsByTagName("nodename");

SAX
"推"式流模型，

JDOM
Java-based Document Object Model，树模型

DOM4J

Document Object Model for Java

StAX

Streaming API for XML：XmlStreamReader + XmlStreamWriter，"拉"式流模型，JDK1.6新特性