由于项目需要，需要我在现有的框架中去自己生成XML文档，而现有的框架中没有用到dom4j、jdom，而客户的要求是最好不好修改现有的框架，于是如下：
1. 通过JDK自带的类把org.w3c.dom.Document转化为字符串。然后再用文件输出流输出，或者直接将ByteArrayOutputStream内存流换成输出流。
/**
* XML org.w3c.dom.Document 转 String
*/
public static String docToString(Document doc) {
String xmlStr = “”;
try {
TransformerFactory tf = TransformerFactory.newInstance();
Transformer t = tf.newTransformer();
t.setOutputProperty(“encoding”, “UTF-8”);// 解决中文问题，试过用GBK不行
ByteArrayOutputStream bos = new ByteArrayOutputStream();
t.transform(new DOMSource(doc), new StreamResult(bos));
xmlStr = bos.toString();
} catch (TransformerConfigurationException e) {
e.printStackTrace();
} catch (TransformerException e) {
e.printStackTrace();
}
return xmlStr;
}
2. 利用jdk中自带的类将字符串转化为org.w3c.dom.Document。
/**
* String 转 XML org.w3c.dom.Document
*/
public static Document stringToDoc(String xmlStr) {
Document doc = null;
try {
xmlStr = new String(xmlStr.getBytes(),”UTF-8″);
StringReader sr = new StringReader(xmlStr);
InputSource is = new InputSource(sr);
DocumentBuilderFactory factory = DocumentBuilderFactory.newInstance();
DocumentBuilder builder = factory.newDocumentBuilder();
doc = builder.parse(is);
} catch (ParserConfigurationException e) {
e.printStackTrace();
} catch (SAXException e) {
e.printStackTrace();
} catch (IOException e) {
e.printStackTrace();
}
return doc;
}
