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【Asp.Net】 ASP.NET获取RSS

作者:dezai / 发布于2014/5/26/ 406


	ASP.NET获取RSS
	/// <summary>
	/// 加载RSS
	/// </summary>
	/// <param name="RssUrl">RSS地址</param>
	/// <param name="RssCount">要提取的文章数量</param>
	/// <returns></returns>
	public string LoadRSS(string RssUrl, int RssCount)
	{
	 XmlDocument doc = new XmlDocument();
	 string Rss = "";
	 if (RssUrl != "")
	 {
	 try
	 {
	 doc.Load(RssUrl);
	 XmlNodeList nodelist = doc.GetElementsByTagName("item");
	 XmlNodeList objItems1;
	 int i = 1;
	 if (doc.HasChildNodes)
	 {
	 foreach (XmlNode node in nodelist)
	 {
	 string title = ""; // 文章标题
	 string link = ""; // 链接
	 string content = ""; // 内容
	 string createDate = ""; // 发表时间
	 i += 1;
	 if (node.HasChildNodes)
	 {
	 objItems1 = node.ChildNodes;
	 foreach (XmlNode node1 in objItems1)
	 {
	 switch (node1.Name)
	 {
	 case "title":
	 title = node1.InnerText;
	 break;
	 case "link":
	 link = node1.InnerText;
	 break;
	 case "description":
	 content = node1.InnerText;
	 break;
	 case "pubDate":
	 createDate = node1.InnerText;
	 break;
	 }
	 if (title != "" && link != "")
	 break;
	 }
	 Rss += "<a href='" + link + "' target='_blank'>" + title + "</a> 发表于 "+createDate+"<hr/>";
	 Rss += content;
	
	 }
	 if (i > RssCount)
	 break;
	 }
	 }
	 }
	 catch (Exception)
	 {
	 Rss = "RSS Feed 源数据出错！";
	 }
	 }
	 else
	 {
	 Rss = "未找到信息源，您可刷新重试或联系管理员！";
	 }
	 return Rss;
	}

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