相关疑难解决方法(0)

要使用任意编码加载XML文件,我有以下代码:

Encoding encoding;
using (var reader = new XmlTextReader(filepath))
{
    reader.MoveToContent();
encoding = reader.Encoding;
}

var settings = new XmlReaderSettings { NameTable = new NameTable() };
var xmlns = new XmlNamespaceManager(settings.NameTable);
var context = new XmlParserContext(null, xmlns, "", XmlSpace.Default, 
    encoding);
using (var reader = XmlReader.Create(filepath, settings, context))
{
    return XElement.Load(reader);
}

这有效,但打开文件两次似乎有点低效.是否有更好的方法来检测编码,以便我可以这样做:

 1. Open file
 2. Detect encoding
 3. Read XML into an XElement
 4. Close file

我的应用程序中有以下XML解析代码:

    public static XElement Parse(string xml, string xsdFilename)
    {
        var readerSettings = new XmlReaderSettings
        {
            ValidationType = ValidationType.Schema,
            Schemas = new XmlSchemaSet()
        };
        readerSettings.Schemas.Add(null, xsdFilename);
        readerSettings.ValidationFlags |= XmlSchemaValidationFlags.ProcessInlineSchema;
        readerSettings.ValidationFlags |= XmlSchemaValidationFlags.ProcessSchemaLocation;
        readerSettings.ValidationFlags |= XmlSchemaValidationFlags.ReportValidationWarnings;
        readerSettings.ValidationEventHandler +=
            (o, e) => { throw new Exception("The provided XML does not validate against the request's schema."); };

        var readerContext = new XmlParserContext(null, null, null, XmlSpace.Default, Encoding.UTF8);

        return XElement.Load(XmlReader.Create(new StringReader(xml), readerSettings, readerContext));
    }

我用它来解析发送到我的WCF服务的字符串到XML文档,用于自定义反序列化.

当我读入文件并通过网络发送它们时(请求),它工作正常; 我已经确认没有发送BOM.在我的请求处理程序中,我正在序列化响应对象并将其作为字符串发送回来.序列化过程将UTF-8 BOM添加到字符串的前面,这会导致在解析响应时中断相同的代码.

System.Xml.XmlException : Data at the root level is …