使用Java DOM + Transformer时省略xml声明中的独立属性.

Question

有没有办法告诉Transformer(使用DOM序列化XML文档时),省略独立属性？

最好不使用hack,即省略整个XML声明,然后手动预先设置.

我目前的代码:

Transformer transformer = TransformerFactory.newInstance().newTransformer();
transformer.setOutputProperty(OutputKeys.INDENT, "yes");
transformer.setOutputProperty(OutputKeys.STANDALONE, "yes"); //Note nothing is changed

StreamResult result = new StreamResult(new StringWriter());
DOMSource source = new DOMSource(document);
transformer.transform(source, result);
 return result.getWriter().toString();

当前:

<?xml version="1.0" encoding="UTF-8" standalone="no"?>
<someElement/>

意:

<?xml version="1.0" encoding="UTF-8">
<someElement/>

Answer 1

弄清楚了..

而不是改变变压器,

我将以下内容添加到文档对象中.

  document.setXmlStandalone(true);