Question

可能重复：
Create RSS feed in MVC4/WebAPI

我希望我的控制器返回rss。在MVC 3中，我只是创建一个Controller派生自Controller，RssResult来编写rss，派生自ActionResult，然后我将其返回到控制器中，一切正常

我的问题是，如何使用Controller派生的ApiController来做到这一点？

感谢您的帮助：）

----------------更新----------------

这是我的控制器：

public class HomeController : Controller
{
    public ActionResult Index()
    {
        List<IRss> list = new List<IRss>
                              {
                                  new Product
                                      {
                                          Title = "Laptop",
                                          Description = "<strong>The latest model</strong>",
                                          Link = "/dell"
                                      },
                                  new Product
                                      {
                                          Title = "Car",
                                          Description = "I'm the fastest car",
                                          Link = "/car"
                                      },
                                  new Product
                                      {
                                          Title = "Cell Phone",
                                          Description = "The latest technology",
                                          Link = "/cellphone"
                                      }
                              };
        return new RssResult(list, "The best products", "Here is our best product");
    }

这是我的RssResult

public class RssResult : ActionResult
{
    private List<IRss> items;
    private string title;
    private string description;

    /// <summary>
    /// Initialises the RssResult
    /// </summary>
    /// <param name="items">The items to be added to the rss feed.</param>
    /// <param name="title">The title of the rss feed.</param>
    /// <param name="description">A short description about the rss feed.</param>
    public RssResult(List<IRss> items, string title, string description)
    {
        this.items = items;
        this.title = title;
        this.description = description;
    }

    public override void ExecuteResult(ControllerContext context)
    {
        XmlWriterSettings settings = new XmlWriterSettings
                                         {Indent = true, NewLineHandling = NewLineHandling.Entitize};

        context.HttpContext.Response.ContentType = "text/xml";

        using (XmlWriter writer = XmlWriter.Create(context.HttpContext.Response.OutputStream, settings))
        {
            // Begin structure
            writer.WriteStartElement("rss");
            writer.WriteAttributeString("version", "2.0");
            writer.WriteStartElement("channel");

            writer.WriteElementString("title", title);
            writer.WriteElementString("description", description);
            writer.WriteElementString("link", context.HttpContext.Request.Url.GetLeftPart(UriPartial.Authority));

            // Individual item
            items.ForEach(x =>
                              {
                                  writer.WriteStartElement("item");
                                  writer.WriteElementString("title", x.Title);

                                  writer.WriteStartElement("description");
                                  writer.WriteCData(x.Description);
                                  writer.WriteEndElement();
                                  writer.WriteElementString("pubDate", DateTime.Now.ToShortDateString());

                                  writer.WriteElementString("link",
                                                            context.HttpContext.Request.Url.GetLeftPart(
                                                                UriPartial.Authority) + x.Link);
                                  writer.WriteEndElement();
                              });

            // End structure
            writer.WriteEndElement();
            writer.WriteEndElement();
        }
    }
}

一切都运作良好。但现在，我的控制器变为public class HomeController : ApiController。现在，我该怎么做才能使这个新控制器像旧的一样工作？我应该如何定义新的Index方法？

Answer 1

AFAIK，即使ASP.NET MVC也没有任何内置的RssResult。你必须实现类似于下面的WebAPI的答案中提到的内容。

RSS Feeds in ASP.NET MVC

如何从MVC 4中的ApiController返回Rss

1 个答案: