javax.xml.transform.Transformer单标签转多标签(空值默认单标签)

javax.xml.transform.Transformer空值默认单标签

 try {
        Transformer tf = TransformerFactory.newInstance().newTransformer();

        Properties props = tf.getOutputProperties();
        props.setProperty(OutputKeys.INDENT, LOGIC_YES);
        props.setProperty(OutputKeys.ENCODING, DEFAULT_ENCODE);
        tf.setOutputProperties(props);

        StringWriter writer = new StringWriter();
        tf.transform(new DOMSource(node), new StreamResult(writer));
        payload = writer.toString();
        payload = payload.replaceAll(REG_INVALID_CHARS, " ");
    } catch (TransformerException e) {
        throw new XmlException(XmlException.XML_TRANSFORM_ERROR, e);
    }
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有时候我们需要时多标签的形式，就是下面这种格式：

很好办，我们改成html
Transformer tf = TransformerFactory.newInstance().newTransformer();

        Properties props = tf.getOutputProperties();
        props.setProperty(OutputKeys.INDENT, LOGIC_YES);
        props.setProperty(OutputKeys.ENCODING, DEFAULT_ENCODE);
        props.setProperty(OutputKeys.METHOD,"html");
        tf.setOutputProperties(props);

        StringWriter writer = new StringWriter();
        tf.transform(new DOMSource(node), new StreamResult(writer));
        payload = writer.toString();
        payload = payload.replaceAll(REG_INVALID_CHARS, " ");
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缺少的xml头自行拼接就好了。