Question

如何在XML中编写XML文本？

QXmlStreamWriter xmlWriter(&file);
(...)
QString xmlCode = "This is a <b>XML</b> code. And should be written as is it";
xmlWriter.writeStartElement("start");
xmlWriter.writeCharacters(xmlCode);
xmlWriter.writeEndElement();

输出应为：

<start>
    This is a <b>XML</b> code. And should be written as is it
</start>

Answer 1

是的，你可以！ :)我使用的Variant，工作得很好：

QXmlStreamWriter xmlWriter(&file);
xmlWriter.writeStartElement("start");
xmlWriter.writeCharacters("");  // This will open and close <start> tag correctly
xmlWriter.device()->write(xmlCode.toLatin1().constData(), xmlCode.length());
xmlWriter.writeEndElement();

此处还建议：http://www.qtcentre.org/threads/60045-writing-raw-data-into-xml-sub-node

Answer 2

你不能，QXmlStreamWriter将逃避少于，引号和＆符号，并且它不提供用于编写不会被转义的文本的机制。你有两个选择，一个是尽可能分解写xmlCode（如果不是因为它是从其他来源传入的，请继续阅读选项2）。

QString xmlCode1 = "This is a ";
QString xmlCode2 = "XML";
QString xmlCode3 = " code. And should be written as is it";
xmlWriter.writeStartElement("start");
xmlWriter.writeCharacters(xmlCode1);
xmlWriter.writeStartElement("b");
xmlWriter.writeCharacters(xmlCode2);
xmlWriter.writeEndElement();
xmlWriter.writeCharacters(xmlCode3);
xmlWriter.writeEndElement();

第二个选项是通过继承QXmlStreamWriter并添加将直接写入QIODevice的方法来自行添加行为。这是另一个人问的问题，这个问题类似但涉及not-escaping quotes。我已经链接到的答案看起来很容易被修改为不会逃避小于（或大于）。

使用QXmlStreamWriter编写XML代码

2 个答案: