c# - 如何将xml字符串UTF8转换为UTF16？

Question

我有一个 XML 字符串 (utf-8)。我需要将该字符串存储在数据库 (MS SQL) 中。编码字符串必须是 UTF-16。

此代码不起作用，utf16Xml 为空

XDocument xDoc = XDocument.Parse(utf8Xml);
xDoc.Declaration.Encoding = "utf-16";
StringWriter writer = new StringWriter();
XmlWriter xml = XmlWriter.Create(writer, new XmlWriterSettings() 
            { Encoding = writer.Encoding, Indent = true });

xDoc.WriteTo(xml);

string utf16Xml = writer.ToString();

utf8Xml - 字符串包含序列化对象(编码 UTF8)。

如何将xml字符串UTF8转为UTF16？

Answer 1

这可能对你有帮助

MemoryStream ms = new MemoryStream();
        XmlWriterSettings xws = new XmlWriterSettings();
        xws.OmitXmlDeclaration = true;
        xws.Indent = true;
        XDocument xDoc = XDocument.Parse(utf8Xml);
        xDoc.Declaration.Encoding = "utf-16";
        using (XmlWriter xw = XmlWriter.Create(ms, xws))
        {

            xDoc.WriteTo(xw);
        }
        Encoding ut8 = Encoding.UTF8;
        Encoding ut116 = Encoding.Unicode;
        byte[] utf16XmlArray = Encoding.Convert(ut8, ut116, ms.ToArray());
        var utf16Xml = Encoding.Unicode.GetString(utf16XmlArray);