在asp.net core 1.0中创建RSS feed [英] Create RSS feed in asp.net core 1.0

问题描述

我正在Asp.net Core 1.0 MVC 6中工作 我正在尝试编写一个组件来提供我网站上的RSS提要.

I am working in Asp.net Core 1.0 MVC 6 I am trying to write a component to provide RSS feeds from my websites.

我找到了这篇文章表明System.ServiceModel.Syndication尚未移植到ASP.NET CORE.

I found this post that suggests that System.ServiceModel.Syndication has yet to be ported to ASP.NET CORE.

我无法针对整个.NET框架.

I am unable to target the full .NET framework.

建议将其编写为xml解析器.但是，我一直在努力应对可能需要的一切.

The suggestion is to write as an xml parser. I am however struggling to get my head around everything that might be required.

我已经构建了将数据转换为XML的功能，但是现在需要更好地了解如何从IActionResult调用它(或者实际上是如何生成可以放在我的页面上的链接).

I have built the functionality to get my data into XML but now need to better understand how to allow this to be called from an IActionResult (or indeed how to generate a link that may be placed on my page).

我可以提供代码示例，但不确定是否会有所帮助. 有谁能指出我实现这些目标的正确方向?

I can provide samples of my code but am not sure it'll be helpful. Is anyone able to point me in the right direction of examples achieving this?

我也在这篇文章中找到了答案，这些答案指出了一些想法，但我认为这是MVC6/Asp.net Core之前的版本:

I also found an answer on this post which points towards some ideas but I think is pre MVC6/Asp.net Core: RSS Feeds in ASP.NET MVC

推荐答案

// action to return the feed
[Route("site/GetRssFeed/{type}")]
public IActionResult GetRssFeed(ArticleStatusTypes type)
{
    var feed = _rss.BuildXmlFeed(type);
    return Content(feed, "text/xml");
}


public string BuildXmlFeed(ArticleStatusTypes type)
{
    var key = $"RssFeed{Convert.ToInt32(type)}{_appInfo.ApplicationId}";
    var articles =
            _cache.GetCachedData(key) ??
            _cache.SetCache(key, _service.GetItems(Convert.ToInt32(type), _appInfo.CacheCount));

    StringWriter parent = new StringWriter();
    using (XmlTextWriter writer = new XmlTextWriter(parent))
    {
        writer.WriteProcessingInstruction("xml-stylesheet", "title=\"XSL_formatting\" type=\"text/xsl\" href=\"/skins/default/controls/rss.xsl\"");

        writer.WriteStartElement("rss");
        writer.WriteAttributeString("version", "2.0");
        writer.WriteAttributeString("xmlns:atom", "http://www.w3.org/2005/Atom");

        // write out 
        writer.WriteStartElement("channel");

        // write out -level elements
        writer.WriteElementString("title", $"{_appInfo.ApplicationName} {type}" );
        writer.WriteElementString("link", _appInfo.WebsiteUrl);
        //writer.WriteElementString("description", Description);
        writer.WriteElementString("ttl", "60");

        writer.WriteStartElement("atom:link");
        //writer.WriteAttributeString("href", Link + Request.RawUrl.ToString());
        writer.WriteAttributeString("rel", "self");
        writer.WriteAttributeString("type", "application/rss+xml");
        writer.WriteEndElement();

        if (articles != null)
        {
            foreach (var article in articles)
            {
                writer.WriteStartElement("item");

                writer.WriteElementString("title", article.Title);
                writer.WriteElementString("link", _appInfo.WebsiteUrl); // todo build article path
                writer.WriteElementString("description", article.Summary);

                writer.WriteEndElement();
            }
        }

        // write out 
        writer.WriteEndElement();

        // write out 
        writer.WriteEndElement();
    }

    return parent.ToString();
}

这篇关于在asp.net core 1.0中创建RSS feed的文章就介绍到这了，希望我们推荐的答案对大家有所帮助，也希望大家多多支持IT屋！