字符串xml生成xml文件

/** * 将字符串的xml转换成org.w3c.dom.Document对象 * @param xml * @return */ public static Document getDocument(String xml) { Document document = null; try { DocumentBuilderFactory dbf = DocumentBuilderFactory.newInstance(); DocumentBuilder db = dbf.newDocumentBuilder(); InputStream is = new ByteArrayInputStream(xml.getBytes()); document = db.parse(is); } catch (Exception e) { e.printstacktrace(); } return document; } /** * 将org.w3c.dom.Document对象写入到指定文件 * * @param doc * @param fileName * @throws Exception */ private static void outputXml(Document doc,String fileName) { try { TransformerFactory tf = TransformerFactory.newInstance(); Transformer transformer = tf.newTransformer(); DOMSource source = new DOMSource(doc); transformer.setoutputProperty(OutputKeys.ENCODING,"UTF-8"); transformer.setoutputProperty(OutputKeys.INDENT,"yes");//增加换行缩进，但此时缩进默认为0 transformer.setoutputProperty("{http://xml.apache.org/xslt}indent-amount","2");//设置缩进为2 PrintWriter pw = new PrintWriter(( new OutputStreamWriter( new FileOutputStream(fileName),"UTF-8"))); StreamResult result = new StreamResult(pw); transformer.transform(source,result); } catch (Exception e) { e.printstacktrace(); } }