String和Xml之间的转换、String转InputStream

// 字符串转XML

Java代码
1.String xmlStr = \"......\";  
2.StringReader sr = new StringReader(xmlStr);  
3.InputSource is = new InputSource(sr);  
4.DocumentBuilderFactory factory = DocumentBuilderFactory.newInstance();  
5.DocumentBuilder builder=factory.newDocumentBuilder();  
6.Document doc = builder.parse(is); 
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

Java代码
1.TransformerFactory  tf  =  TransformerFactory.newInstance();  
2.Transformer t = tf.newTransformer();  
3.t.setOutputProperty(\"encoding\",\"GB23121\");//解决中文问题，试过用GBK不行  
4.ByteArrayOutputStream  bos  =  new  ByteArrayOutputStream();  
5.t.transform(new DOMSource(doc), new StreamResult(bos));  
6.String xmlStr = bos.toString(); 
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();