我正在尝试在C#(Windows Universal App)中读取字段“ dc:creator”,但不起作用。我需要帮助。请
HttpClient httpClient = new HttpClient();
var rssContent = await httpClient.GetStringAsync("http://www.talkingwindows.com.br/feed");
XElement xmlitems = XElement.Parse(rssContent);
List<XElement> elements = xmlitems.Descendants("item").ToList();
foreach (XElement rss in elements)
{
Lista.Add(
new Model
{
Titulo = rss.Element("title").Value,
DataPublicacao = rss.Element("pubDate").Value,
Descricao = rss.Element("description").Value,
//Autor = rss.Element("dc:creator xmlns:dc=\"http://purl.org/dc/elements/1.1/\"").Value,
Link = rss.Element("link").Value
}
);
}
要在特定名称空间中选择元素,您需要在其前面加上XNamespace
。在您的情况下,应如下所示:
XNamespace dcNamespace = "http://purl.org/dc/elements/1.1/";
foreach (XElement rss in elements)
{
Lista.Add(
new Model
{
Titulo = rss.Element("title").Value,
DataPublicacao = rss.Element("pubDate").Value,
Descricao = rss.Element("description").Value,
Autor = rss.Element(dcNamespace + "creator").Value,
Link = rss.Element("link").Value
}
);
}
或者,如果您愿意,也可以这样:
Autor = rss.Element("{http://purl.org/dc/elements/1.1/}creator").Value,
可以在这里找到更多的阅读内容:
Windows.Web.Syndication
是用于解析RSS和Atom提要的API。有一个sample。
在这种情况下,您可以在dc:creator
中找到扩展元素为SyndicationItem.ElementExtensions
。
使用SyndicationClass
读取RSS feed仅需要几行代码
using System.Xml;
using System.ServiceModel.Syndication;
var reader = XmlReader.Create("https://blogs.yourdomain.com/feed");
var feed = SyndicationFeed.Load<SyndicationFeed>(reader);
foreach (var blog in feed.Items)
var creator = blog.ElementExtensions.First(x => x.OuterName == "creator").GetObject<string>();