我无法从RSS Feed中检索图像,例如,在描述中。
我使用以下代码检索信息。
var rssFeed = from el in doc.Elements("rss").Elements("channel").Elements("item")
orderby datetime(el.Element("pubDate").Value) descending
select new
{
Title = el.Element("title").Value,
Link = el.Element("link").Value,
Description =el.Element("description").Value,
PubDate = datetime(el.Element("pubDate").Value),
};
显示说明时,正在显示文本和图像以进行收集 我想在描述中分隔文本和图像。你能告诉我怎么办吗?
使用RSS Feed:http://news.yahoo.com/rss/
答案 0 :(得分:1)
var rssFeed = from el in doc.Elements("rss").Elements("channel").Elements("item")
orderby datetime(el.Element("pubDate").Value) descending
select new
{
Title = el.Element("title").Value,
Link = el.Element("link").Value,
Description =replace_other(el.Element("description").Value),
Image= regex(el.Element("description").Value),
PubDate = datetime(el.Element("pubDate").Value),
};
lvFeed.DataSource = rssFeed;
lvFeed.DataBind();
}
protected string regex(string source)
{
var reg1 = new Regex("src=(?:\"|\')?(?<imgSrc>[^>]*[^/].(?:jpg|bmp|gif|png))
(?:\"|\')?");
var match1 = reg1.Match(source);
if (match1.Success)
{
Uri UrlImage = new Uri(match1.Groups["imgSrc"].Value, UriKind.Absolute);
return UrlImage.ToString();
}
else
{
return null;
}
}