1.将字符串转化为XML

String text = "<members> <member>sitinspring</member> </members>";      
Document document = DocumentHelper.parseText(text);      

2.将文档或节点的XML转化为字符串.

SAXReader reader = new SAXReader();
Document document = reader.read(new File("input.xml"));
Element root=document.getRootElement();
String docXmlText=document.asXML();
String rootXmlText=root.asXML();
Element memberElm=root.element("member");
String memberXmlText=memberElm.asXML();