string 转化xml xml转化为string

一、使用最原始的javax.xml.parsers，标准的jdk api 

 

// 字符串转XML 

 

String xmlStr = \"......\";  

StringReader sr = new StringReader(xmlStr); 

InputSource is = new InputSource(sr); 

DocumentBuilderFactory factory = DocumentBuilderFactory.newInstance(); 

DocumentBuilder builder=factory.newDocumentBuilder();  

Document doc = builder.parse(is);  

//XML转字符串 

TransformerFactory  tf  =  TransformerFactory.newInstance();  

Transformer t = tf.newTransformer();  

t.setOutputProperty(\"encoding\",\"GB23121\");//解决中文问题，试过用GBK不行 

ByteArrayOutputStream  bos  =  new  ByteArrayOutputStream(); 

t.transform(new DOMSource(doc), new StreamResult(bos));  

String xmlStr = bos.toString();  

这里的XML DOCUMENT为org.w3c.dom.Document 

 

　　二、使用dom4j后程式变得更简单 

 

// 字符串转XML  

String xmlStr = \"......\";  

Document document = DocumentHelper.parseText(xmlStr);  

  

// XML转字符串  

Document document = ...;  

String text = document.asXML();  

  

这里的XML DOCUMENT为org.dom4j.Document  

　　三、使用JDOM 

 

JDOM的处理方式和第一种方法处理很类似 

 

//字符串转XML  

String xmlStr = \".....\";  

StringReader sr = new StringReader(xmlStr); 

InputSource is = new InputSource(sr); 

Document doc = (new SAXBuilder()).build(is); 

  

//XML转字符串  

Format format = Format.getPrettyFormat();  

format.setEncoding(\"gb2312\");//配置xml文档的字符为gb2312，解决中文问题 

XMLOutputter xmlout = new XMLOutputter(format); 

ByteArrayOutputStream bo = new ByteArrayOutputStream(); 

xmlout.output(doc,bo);  

String xmlStr = bo.toString();  

  

这里的XML DOCUMENT为org.jdom.Document  

　四、JAVASCRIPT中的处理 

 

//字符串转XML  

var xmlStr = \".....\";  

var xmlDoc = new ActiveXObject(\"Microsoft.XMLDOM\"); 

xmlDoc.async=false;  

xmlDoc.loadXML(xmlStr);  

//能够处理这个xmlDoc了  

var name = xmlDoc.selectSingleNode(\"/person/name\"); 

alert(name.text);  

  

//XML转字符串  

var xmlDoc = ......;  

var xmlStr = xmlDoc.xml  

  

这里的XML DOCUMENT为javascript版的XMLDOM