是否有比此代码更优雅的方式将XML文档转换为Java中的字符串？

依赖DOM Level3加载/保存：

public String getStringFromDoc(org.w3c.dom.document doc)    {    DOMImplementationLS domImplementation = (DOMImplementationLS) doc.getImplementation();    LSSerializer lsSerializer = domImplementation.createLSSerializer();    return lsSerializer.writeToString(doc);   }