SyndicationFeed -不能读取url，错误行和位置

本文关键字：错误 位置 url 不能 不能读 读取 SyndicationFeed | 更新日期: 2023-09-27 18:07:44

我有一些问题与SyndicationFeed抛出一个异常，我无法弄清楚，一直在寻找一个答案。我尝试了其他用户建议的大多数解决方案，但运气不好。代码如下:

// the feed that will throw Exception. 
var stream = "http://www.gamespot.com/feeds/news/";
  try
                {
                    var settings = new XmlReaderSettings()
                    {
                        ProhibitDtd = false,
                        IgnoreComments = true
                    };
                    using (XmlReader xmlReader = XmlReader.Create(stream, settings))
                    {
                        xmlReader.Read();
                        var t = 0;
                        var rss = new Rss20FeedFormatter();
                        var atom = new Atom10FeedFormatter();
                        _feed = new SyndicationFeed();
                        // the problem is here when i try to load to  
                        // the feed with xmlReader, for some reason the 
                        //feed can't read the xmlReader. getting row and 
                        //position error.
                        if (atom.CanRead(xmlReader))
                        {
                            _feed = SyndicationFeed.Load(xmlReader);
                        }
                        else if (rss.CanRead(xmlReader))
                        {
                            _feed = SyndicationFeed.Load(xmlReader);
                        }
                        xmlReader.Close();
                    }
                }
                catch (Exception ex)
                {
                    var message = ex.Message;
                }

类似的问题我真的需要来点什么。

提前感谢。

SyndicationFeed -不能读取url，错误行和位置

问题在缓存节点，在解析之前将其删除。

var stream = "http://www.gamespot.com/feeds/news/";
            try
            {
                var settings = new XmlReaderSettings()
                {
                    ProhibitDtd = false,
                    IgnoreComments = true,
                    IgnoreWhitespace=true
                };
                string xml = new WebClient().DownloadString(stream);
                XDocument doc = XDocument.Parse(xml);
                doc.Descendants().Where(e => e.Name == "cache").Remove();
                using (Stream memoryStream = new MemoryStream())  // Create a stream
                {
                    doc.Save(memoryStream);      // Save XDocument into the stream
                    memoryStream.Position = 0;   // Rewind the stream ready to read from it elsewhere
                    using (XmlReader xmlReader = XmlReader.Create(memoryStream, settings))
                    {
                        xmlReader.Read();
                        var rss = new Rss20FeedFormatter();
                        var atom = new Atom10FeedFormatter();
                        var _feed = new SyndicationFeed();
                        // the problem is here when i try to load to  
                        // the feed with xmlReader, for some reason the 
                        //feed can't read the xmlReader. getting row and 
                        //position error.
                        if (atom.CanRead(xmlReader))
                        {
                            _feed = SyndicationFeed.Load(xmlReader);
                        }
                        else if (rss.CanRead(xmlReader))
                        {
                            _feed = SyndicationFeed.Load(xmlReader);
                        }
                        xmlReader.Close();
                    }
                }
            }
            catch (Exception ex)
            {
                var message = ex.Message;
            }

在这个解决方案中工作的答案，对我来说。

public XmlReader CleanXdocument(XmlReader xmlReader)
        {
            var xdoc = new XDocument();
            xdoc = XDocument.Load(xmlReader);
            if (xdoc.Descendants("cache").Any())
            {
                xdoc.Descendants().FirstOrDefault(e => e.Name == "cache").Remove();
            }
            var str = xdoc.ToString();
            TextReader tr = new StringReader(str);
            xmlReader =XmlReader.Create(tr);
            return xmlReader;
        }

可能不是最好的方法，但它有效。非常感谢alexander为我的问题提供的提示和解决方案。

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