Dom4j解析XML文档

 1。SAX方式
   SAXReader saxReader = newSAXReader();
   Document document =saxReader.reader("....");

2.DOM方式

DocumentBuilderFactory dbf =DocumentBuilderFactory.newInstance();
DocumentBuilder db= dbf.newDocumentBuilder();
org.w3c.dom.Document w3cDocument= db.parse("..");
org.dom4j.Document dom4jDocument = null;

DomReader domReader = new DomReader();
dom4jDocument = domReader.reader(w3cDocument); //两种document的相互转换