dom4j - xpath - 将xml作为Document.valueOf的字符串

Question

有没有办法编写XPath表达式，当用dom4j库中的Document.valueOf方法调用时，它会将xml树作为字符串返回？我尝试了/node()，但它只返回所有节点中的文本，不包括标签。

Answer 1

方法1：

DOMSource domSource = new DOMSource(document);

StringWriter writer = new StringWriter();
StreamResult streamResult = new StreamResult(writer);

TransformerFactory transformerFactory = TransformerFactory.newInstance();
Transformer transformer = transformerFactory .newTransformer();
transformer.transform(domSource, streamResult);
String result = writer.toString(); 

方法2：（更优雅的方法）

public abstract class Bar {
    public int count = 0;
}