作为ActionResult从控制器的操作中返回XML？

使用MVCContrib的XmlResult Action.

这里参考的是他们的代码:

public class XmlResult : ActionResult
{
    private object objectToSerialize;

    /// 

    /// Initializes a new instance of the  class.
    /// 
    /// The object to serialize to XML.
    public XmlResult(object objectToSerialize)
    {
        this.objectToSerialize = objectToSerialize;
    }

    /// 

    /// Gets the object to be serialized to XML.
    /// 
    public object ObjectToSerialize
    {
        get { return this.objectToSerialize; }
    }

    /// 

    /// Serialises the object that was passed into the constructor to XML and writes the corresponding XML to the result stream.
    /// 
    /// The controller context for the current request.
    public override void ExecuteResult(ControllerContext context)
    {
        if (this.objectToSerialize != null)
        {
            context.HttpContext.Response.Clear();
            var xs = new System.Xml.Serialization.XmlSerializer(this.objectToSerialize.GetType());
            context.HttpContext.Response.ContentType = "text/xml";
            xs.Serialize(context.HttpContext.Response.Output, this.objectToSerialize);
        }
    }
}

如果您使用优秀的Linq-to-XML框架构建XML,那么这种方法将会很有帮助.

我XDocument在动作方法中创建了一个.

public ActionResult MyXmlAction()
{
    // Create your own XDocument according to your requirements
    var xml = new XDocument(
        new XElement("root",
            new XAttribute("version", "2.0"),
            new XElement("child", "Hello World!")));

    return new XmlActionResult(xml);
}

public sealed class XmlActionResult : ActionResult
{
    private readonly XDocument _document;

    public Formatting Formatting { get; set; }
    public string MimeType { get; set; }

    public XmlActionResult(XDocument document)
    {
        if (document == null)
            throw new ArgumentNullException("document");

        _document = document;

        // Default values
        MimeType = "text/xml";
        Formatting = Formatting.None;
    }

    public override void ExecuteResult(ControllerContext context)
    {
        context.HttpContext.Response.Clear();
        context.HttpContext.Response.ContentType = MimeType;

        using (var writer = new XmlTextWriter(context.HttpContext.Response.OutputStream, Encoding.UTF8) { Formatting = Formatting })
            _document.WriteTo(writer);
    }
}

public string Xml()
{
    Response.ContentType = "text/xml";
    return yourXmlChunk;
}