c# - XmlWriterSettings 对从 XmlDocument 创建的 XmlWriter 没有影响

Question

我需要使用 ISO Latin 1 编码，但使用编写器设置下方的代码默认返回 UTF8。我在这里缺少什么？

XmlDocument xmlDoc = new XmlDocument(); 
XmlWriterSettings settings = new XmlWriterSettings();
settings.ConformanceLevel = ConformanceLevel.Auto;
settings.Encoding = System.Text.Encoding.GetEncoding(28591);
using (XmlWriter writer = XmlWriter.Create(xmlDoc.CreateNavigato().AppendChild(), settings))
{
}

Answer 1

问题在于底层流(在本例中为 xmlDoc 对象)正在使用 UTF-8，这是 .NET 中的默认编码。

来自 Encoding property 的 MSDN 文档XmlWriterSettings 的:

The Encoding property only applies to the XmlWriter instances that are created either with the specified Stream or with the specified file name. If the XmlWriter instance is created with the specified TextWriter, the Encoding property is overridden by the encoding of the underlying TextWriter. For example, if this property is set to Unicode (UTF-16) for a particular XmlWriter, but the underlying writer is an StreamWriter (which derives from TextWriter) with its encoding set to UTF-8, the output will be UTF-8 encoded.

为了解决这个问题，您需要使用 Latin-1 编码的流创建您的 XmlWriter。我认为您不能为此使用 XmlDocument。