asp.net(c#) RSS功能實現代碼

來源:互聯網
上載者:User

可能還有很多未完善,但終歸可以使用了,以後再慢慢改進!!  
以下是我RSS介面的後台代碼,給需要的朋友提供下我的經驗:   複製代碼 代碼如下: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.Data;
using System.Data.SqlClient;
using System.Xml;
using System.IO;
using System.Web.Configuration;
public partial class rss : System.Web.UI.Page
{
    string   HostUrl; 
    string   HttpHead;
    protected void Page_Load(object sender, EventArgs e)
    {
        HttpContext context = HttpContext.Current;
        HostUrl = context.Request.Url.ToString();
        HostUrl = HostUrl.Substring(0, HostUrl.IndexOf("/", 8));
        XmlTextWriter writer = new XmlTextWriter(context.Response.OutputStream, System.Text.Encoding.UTF8);
        WriteRSSPrologue(writer);
        WriteRSSHeadChennel(writer);
        string sql = "select top 10 title,id,time,content from blog_title order by time desc";
        SqlDataReader dr = dbconn.ExecuteReader(sql);
        while (dr.Read())
        {
            AddRSSItem(writer, (((DateTime)dr["time"]).ToUniversalTime()).ToString("r"), dr["title"].ToString(), HostUrl, dr["content"].ToString());
        }
        dr.Close();
        writer.Flush();
        writer.Close();
        context.Response.ContentEncoding = System.Text.Encoding.UTF8;
        context.Response.ContentType = "text/xml";
        context.Response.Cache.SetCacheability(HttpCacheability.Public);
        context.Response.End();
    }
    private XmlTextWriter WriteRSSPrologue(XmlTextWriter writer)
    {
        writer.WriteStartDocument();
        writer.WriteStartElement("rss");
        writer.WriteAttributeString("version", "2.0");
        writer.WriteAttributeString("xmlns:dc", "http://purl.org/dc/elements/1.1/");
        writer.WriteAttributeString("xmlns:trackbac", "http://madskills.com/public/xml/rss/module/trackback/");
        writer.WriteAttributeString("xmlns:wfw", "http://wellformedweb.org/CommentAPI/");
        writer.WriteAttributeString("xmlns:slash", "http://purl.org/rss/1.0/modules/slash/");
        return writer;
    }
    private XmlTextWriter WriteRSSHeadChennel(XmlTextWriter writer)
    {
            writer.WriteStartElement("channel");
            writer.WriteElementString("title", "編程部落格(Nickeyj's Blog) - 最新日誌");
            writer.WriteElementString("link", HostUrl + "/ ");
            writer.WriteElementString("description", "編程部落格(Nickeyj's Blog)");
            writer.WriteElementString("copyright", "2008 www.52bcnet.com");
            writer.WriteElementString("generator", "編程部落格(Nickeyj's Blog)   RSS   產生器   2.0 ");
        return writer;
    }
    private XmlTextWriter AddRSSItem(XmlTextWriter writer, string pubDate, string sItemTitle, string sItemLink, string sItemDescription)
    {
        writer.WriteStartElement("item");
        writer.WriteElementString("title", sItemTitle);
        writer.WriteElementString("link", sItemLink);
        writer.WriteElementString("description", sItemDescription);
        writer.WriteElementString("pubDate", pubDate);
        writer.WriteEndElement();
        return writer;
    }
    private XmlTextWriter AddRSSItem(XmlTextWriter writer, string sItemTitle, string sItemLink, string sItemDescription, bool bDescAsCDATA)
    {
        writer.WriteStartElement("item");
        writer.WriteElementString("title", sItemTitle);
        writer.WriteElementString("link", sItemLink);
        if (bDescAsCDATA == true)
        {
            writer.WriteStartElement("description");
            writer.WriteCData(sItemDescription);
            writer.WriteEndElement();
        }
        else
        {
            writer.WriteElementString("description", sItemDescription);
        }
        writer.WriteElementString("pubDate", DateTime.Now.ToString("r"));
        writer.WriteEndElement();
        return writer;
    }
    private XmlTextWriter WriteRSSClosing(XmlTextWriter writer)
    {
        writer.WriteEndElement();
        writer.WriteEndElement();
        writer.WriteEndDocument();
        return writer;
    }
}
相關文章

聯繫我們

該頁面正文內容均來源於網絡整理,並不代表阿里雲官方的觀點,該頁面所提到的產品和服務也與阿里云無關,如果該頁面內容對您造成了困擾,歡迎寫郵件給我們,收到郵件我們將在5個工作日內處理。

如果您發現本社區中有涉嫌抄襲的內容,歡迎發送郵件至: info-contact@alibabacloud.com 進行舉報並提供相關證據,工作人員會在 5 個工作天內聯絡您,一經查實,本站將立刻刪除涉嫌侵權內容。

A Free Trial That Lets You Build Big!

Start building with 50+ products and up to 12 months usage for Elastic Compute Service

  • Sales Support

    1 on 1 presale consultation

  • After-Sales Support

    24/7 Technical Support 6 Free Tickets per Quarter Faster Response

  • Alibaba Cloud offers highly flexible support services tailored to meet your exact needs.