读取博客园rss

 Model

using System;
using System.Collections.Generic;
using System.Linq;
using System.Text;

namespace NeoModel
{
    public class RssReader
    {
        public RssReader()
        {
        }
        private int _id;
        public int ID
        {
            get { return _id; }
            set { _id = value; }
        }

        private string _title;
        public string Title
        {
            get { return _title; }
            set { _title = value; }
        }

        private DateTime? _pubdate;
        public DateTime? PubDate
        {
            get { return _pubdate; }
            set { _pubdate = value; }
        }

        private string _guid;
        public string Guid
        {
            get { return _guid; }
            set { _guid = value; }
        }

        private string _description;
        public string Description
        {
            get { return _description; }
            set { _description = value; }
        }
    }
}

DAL

 

using System;
using System.Collections.Generic;
using System.Linq;
using System.Text;
using System.Data;
using System.Data.SqlClient;
using NeoCommon;
namespace NeoDAL
{
    public class RssReaderDal
    {
        public RssReaderDal()
        {
        }
        /// <summary>
        /// 添加rss
        /// </summary>
        /// <param name="rss"></param>
        /// <returns></returns>
        public bool AddRssReader(NeoModel.RssReader rss)
        {
            string strSql = "Insert into RssReader(title,pubdate,[guid],[description]) values(@title,@pubdate,@guid,@description)";
            SqlParameter[] sp = {
                               new SqlParameter("@title",rss.Title),
                               new SqlParameter("@pubdate",rss.PubDate),
                               new SqlParameter("@guid",rss.Guid),
                               new SqlParameter("@description",rss.Description)
                               };
            return DbHelperSQL.ExecuteSql(strSql, sp) > 0;

        }
        /// <summary>
        /// 判断rss是否存在
        /// </summary>
        /// <param name="guid"></param>
        /// <returns></returns>
        public bool IsExistRssByGuid(string guid)
        {
            string strSql = "SELECT COUNT(0) FROM RssReader WHERE [guid]=@guid";
            SqlParameter[] sp = {
                                new SqlParameter("@guid",guid)
                                };
            return Convert.ToInt32(DbHelperSQL.GetSingle(strSql, sp)) > 0;
        }
        /// <summary>
        ///
        /// </summary>
        /// <returns></returns>
        public DataTable GetRss()
        {
            string strSql = "Select * from RssReader order by pubdate desc";
            DataSet ds = DbHelperSQL.Query(strSql);
            if (ds == null || ds.Tables.Count <= 0 || ds.Tables[0].Rows.Count <= 0)
            {
                return new DataTable();
            }
            return ds.Tables[0];
        }

    }
}

BLL

 

using System;
using System.Collections.Generic;
using System.Linq;
using System.Text;
using System.Data;

namespace NeoBLL
{
    public class RssReader
    {
        NeoDAL.RssReaderDal dal = new NeoDAL.RssReaderDal();
        public RssReader() { }

        /// <summary>
        ///
        /// </summary>
        /// <param name="rss"></param>
        /// <returns></returns>
        public bool AddRssReader(NeoModel.RssReader rss)
        {
            return dal.AddRssReader(rss);
        }
        /// <summary>
        ///
        /// </summary>
        /// <param name="guid"></param>
        /// <returns></returns>
        public bool IsExistRssByGuid(string guid)
        {
            return dal.IsExistRssByGuid(guid);
        }
        public DataTable GetRss()
        {
            return dal.GetRss();
        }
    }
}

页面源

 

<%@ Page Title="" Language="C#" MasterPageFile="~/master/Oa.Master" AutoEventWireup="true"
    CodeBehind="RssReader.aspx.cs" Inherits="NeoBackground.Baidu.RssReader" %>

<asp:Content ID="Content1" ContentPlaceHolderID="head" runat="server">
    <style type="text/css">
        .title
        {
            font-size: 11pt;
            margin: 5px 0;
            background: transparent url(../images/icon.rss.current.png) no-repeat 4px 50%;
            padding-left: 28px;
            word-break: break-word;
            -webkit-user-select: text;
        }
        h3, h4
        {
            padding: 0;
        }
        a
        {
            color: #036;
        }
        h3
        {
            display: block;
            -webkit-margin-before: 1em;
            -webkit-margin-after: 1em;
            -webkit-margin-start: 0px;
            -webkit-margin-end: 0px;
            font-weight: bold;
        }
        h4
        {
            display: block;
            -webkit-margin-before: 1.33em;
            -webkit-margin-after: 1.33em;
            -webkit-margin-start: 0px;
            -webkit-margin-end: 0px;
        }
        .updated
        {
            color: #666;
            font-weight: normal;
             padding-left:8px;
            margin: 5px 0;
        }
        .description
        {
            margin: 14px 20px 20px 0;
            padding-left:8px;
            max-width: 850px;
            line-height: 1.8;
            font-size: 10pt;
            word-break: break-word;
        }
        .actions
        {
            padding: 5px 8px;
            background-color: #f4f5f5;
            border-radius: 3px;
             width:99%;
        }
        div
        {
            display: block;
            width: 100%;
        }
        body
        {
            color: Black;
            cursor: default;
            font-size: 9pt;
            font-family: Segoe UI, 微软雅黑 , Tahoma;
        }
    </style>
</asp:Content>
<asp:Content ID="Content2" ContentPlaceHolderID="MainContent" runat="server">
    <asp:Repeater ID="reprss" runat="server">
        <ItemTemplate>
            <div style=" margin:10px; padding:5px; background-color:White; border:1px #ccc solid; border-radius:4px;">
                <div>
                    <h3 class="title">
                        <a href="<%#Eval("guid") %>" target="_blank">
                            <%#Eval("title") %></a></h3>
                    <h4 class="updated">
                        <%#Eval("pubdate")%>
                    </h4>
                </div>
                <div class="description">
                    <%#Eval("description")%><br />

                </div>
                <div class="actions">
                    <a href="<%#Eval("guid") %>"  target="_blank">打开页面</a>
                </div>
            </div>
        </ItemTemplate>
    </asp:Repeater>
</asp:Content>

后台

 

using System;
using System.Collections.Generic;
using System.Linq;
using System.Web;
using System.Web.UI;
using System.Web.UI.WebControls;
using System.Xml;
using System.Data;
namespace NeoBackground.Baidu
{
    public partial class RssReader : System.Web.UI.Page
    {
        NeoBLL.RssReader bll = new NeoBLL.RssReader();
        protected void Page_Load(object sender, EventArgs e)
        {
            if (!IsPostBack)
            {
                // WriterRss();
                DataTable dt = bll.GetRss();
                this.reprss.DataSource = dt;
                this.reprss.DataBind();
            }
        }



        public void WriterRss()
        {
            string url = "http://feed.cnblogs.com/news/rss";
            XmlDocument document = new XmlDocument();
            document.Load(url);//
            XmlNodeList list = document.GetElementsByTagName("item");
            if (document.HasChildNodes)
            {
                foreach (XmlNode xn in list)
                {
                    if (xn.HasChildNodes)
                    {

                        NeoModel.RssReader rss = new NeoModel.RssReader();
                        XmlNodeList xlcd = xn.ChildNodes;
                        foreach (XmlNode xmlchild in xlcd)
                        {
                            switch (xmlchild.Name)//节点的限定名字
                            {
                                case "title":
                                    rss.Title = xmlchild.InnerText;
                                    break;
                                case "pubDate":
                                    rss.PubDate = Convert.ToDateTime(xmlchild.InnerText);
                                    break;
                                case "guid":
                                    rss.Guid = xmlchild.InnerText;
                                    break;
                                case "description":
                                    rss.Description = xmlchild.InnerText;
                                    break;
                                default:
                                    break;
                            }
                        }
                        if (!bll.IsExistRssByGuid(rss.Guid))
                        {
                            bll.AddRssReader(rss);
                        }
                    }
                }
            }
        }
    }
}

显示如下图：