XMLUtils.java 文件源码

public static String serialize(Document document, boolean prettyPrint) {
    DOMImplementationLS impl = getDOMImpl();
    LSSerializer serializer = impl.createLSSerializer();
    // document.normalizeDocument();
    DOMConfiguration config = serializer.getDomConfig();
    if (prettyPrint && config.canSetParameter("format-pretty-print", Boolean.TRUE)) {
        config.setParameter("format-pretty-print", true);
    }
    config.setParameter("xml-declaration", true);        
    LSOutput output = impl.createLSOutput();
    output.setEncoding("UTF-8");
    Writer writer = new StringWriter();
    output.setCharacterStream(writer);
    serializer.write(document, output);
    return writer.toString();
}