Java生成xml
2022/2/7 17:16:33
本文主要是介绍Java生成xml,对大家解决编程问题具有一定的参考价值,需要的程序猿们随着小编来一起学习吧!
1.创建document
DocumentBuilderFactory factory = DocumentBuilderFactory.newInstance(); DocumentBuilder db = factory.newDocumentBuilder(); Document document = db.newDocument(); document.setXmlStandalone(false); // 去掉xml 的默认文件头
2.创建节点并放入值
Element include = document.createElement("include"); Element gateway = document.createElement("gateway"); Element param = document.createElement("param"); Element param1 = document.createElement("param"); Element param2 = document.createElement("param"); Element param3 = document.createElement("param"); gateway.setAttribute("name",name);
3.添加节点层级
gateway.setAttribute("name",sipGateway); include.appendChild(gateway); param.setAttribute("name","username"); param1.setAttribute("name","realm"); param2.setAttribute("name","proxy"); param3.setAttribute("name","register"); param.setAttribute("value",callNumber); param1.setAttribute("value",realm); param2.setAttribute("value",proxy); param3.setAttribute("value",register); gateway.appendChild(param); gateway.appendChild(param1); gateway.appendChild(param2); gateway.appendChild(param3); document.appendChild(include);
4.设置换行并输出
// 创建TransformerFactory对象 TransformerFactory tff = TransformerFactory.newInstance(); // 创建 Transformer对象 Transformer tf = tff.newTransformer(); // 输出内容是否使用换行 tf.setOutputProperty(OutputKeys.INDENT, "yes"); //缩进2格 tf.setOutputProperty(OutputPropertiesFactory.S_KEY_INDENT_AMOUNT, "2"); tf.setOutputProperty(OutputKeys.OMIT_XML_DECLARATION,"yes"); StreamResult result = new StreamResult(out) ; tf.transform(new DOMSource(document.getDocumentElement()), new StreamResult(out));
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