Syndication实现读取、创建、订阅、更新Rss例子 附完整源码下载

【实例简介】该实例主要目的是了解Syndication，并实现了如下功能                                                          

 一、了解RSS源
     二、RSS源格式
     三、如何创建RSS源
     四、如何订阅RSS源

     五、如何更新RSS源

【实例截图】

该项目需要引用引用System.ServiceModel.Web 命名空间         

【核心代码】

using System;
using System.Data;
using System.Configuration;
using System.Collections;
using System.Web;
using System.Web.Security;
using System.Web.UI;
using System.Web.UI.WebControls;
using System.Web.UI.WebControls.WebParts;
using System.Web.UI.HtmlControls;


using System.ServiceModel.Syndication;
using System.ServiceModel.Web;
using System.Xml;
using System.Collections.Generic;


/// <summary>
/// 此页面主要用作浏览RSS的条目
/// </summary>
public partial class LookRss : System.Web.UI.Page
{
    protected void Page_Load(object sender, EventArgs e)
    {
        ReadRss();
    }


    /// <summary>
    /// 读取RSS内容
    /// </summary>
    private void ReadRss()
    {
        //TextSyndicationContent 
        Rss20FeedFormatter feed = new Rss20FeedFormatter();
        //1、得到RSS源路径
        string sRssString = GetFullyQualifiedUrl("rss.xml");

        //2、读取RSS中的内容
        using (XmlReader xreader = XmlReader.Create(sRssString))
        {
            feed.ReadFrom(xreader);
        }
        lblTitle.Text = feed.Feed.Title.Text;
        if (feed.Feed.Copyright != null)
        {
            lblCopyright.Text = feed.Feed.Copyright.Text;
        }

        //3、显示RSS中的内容
        repeater1.DataSource = feed.Feed.Items;
        repeater1.DataBind();
    }



    /// <summary>
    /// 得到虚拟目录地址(与本程序无关)
    /// </summary>
    /// <param name="url"></param>
    /// <returns></returns>
    private string GetFullyQualifiedUrl(string url)
    {
        string sUrl1 = Request.Url.GetLeftPart(UriPartial.Authority);
        string sUrl2 = ResolveUrl(url);
        return string.Concat(Request.Url.GetLeftPart(UriPartial.Authority), ResolveUrl(url));
    }

}