.NET2.0抓取網(wǎng)頁(yè)全部鏈接_.Net教程
      
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一、項(xiàng)目名稱及描述：(實(shí)現(xiàn)步驟為：4-3-6-5-2-1)

1、WEB＝表示層

2、BLL＝業(yè)務(wù)邏輯層

3、IDAL＝數(shù)據(jù)訪問(wèn)層接口定義

4、Model＝業(yè)務(wù)實(shí)體

5、DALFactory＝數(shù)據(jù)層
      效果圖
      


      


      后臺(tái)代碼
      


      


      

    

        
      

            

            
      以下為引用的內(nèi)容：
      using System;
      using System.Data;
      using System.Configuration;
      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.Text.RegularExpressions;
      using System.Net;
      using System.IO;
      using System.Collections; 
      

            
      public partial class _Default : System.Web.UI.Page 
      {
          protected void Page_Load(object sender, EventArgs e)
          {
              if (!IsPostBack)
              {
                  
              }
              
          }
      

            

            

          protected void Button1_Click(object sender, EventArgs e)
          {
              TextBox2.Text = "";
              string web_url = this.TextBox1.Text;//"http://blog.csdn.net/21aspnet/"
              string all_code = "";
              HttpWebRequest all_codeRequest = (HttpWebRequest)WebRequest.Create(web_url);
              WebResponse all_codeResponse = all_codeRequest.GetResponse();
              StreamReader the_Reader = new StreamReader(all_codeResponse.GetResponseStream());
              all_code = the_Reader.ReadToEnd();
              the_Reader.Close();
              ArrayList my_list = new ArrayList();
              string p = @"http://([\w-] \.) [\w-] (/[\w- ./?%&=]*)?";
              Regex re = new Regex(p, RegexOptions.IgnoreCase);
              MatchCollection mc = re.Matches(all_code);
      

            
              for (int i = 0; i <= mc.Count - 1; i  )
              {
                  bool _foo = false;
                  string name = mc[i].ToString();
                  foreach (string list in my_list)
                  {
                      if (name == list)
                      {
                          _foo = true;
                          break;
                      }
                  }//過(guò)濾
      

            
                  if (!_foo)
                  {
                      TextBox2.Text  = name   "\n";
                  }
              } 
          }
      }
      

                  		

        
      

          


      


      


      前臺(tái)
      


      


      

    

        
      

            以下為引用的內(nèi)容：
      <%@ Page Language="C#" AutoEventWireup="true"  CodeFile="Default.aspx.cs" Inherits="_Default" %>

            
      <!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd">
      

            
      <html xmlns="http://www.w3.org/1999/xhtml" >
      <head runat="server">
          <title>抓取網(wǎng)頁(yè)所有鏈接</title>
          
      </head>
      <body >
          <form id="form1" runat="server">
          <div>
              <asp:TextBox ID="TextBox1" runat="server" Width="481px"></asp:TextBox>
              <asp:Button ID="Button1" runat="server" OnClick="Button1_Click" Text="提取" />
              <br />
              <asp:TextBox ID="TextBox2" runat="server" Height="304px" TextMode="MultiLine" Width="524px"></asp:TextBox></div>
          </form>
      </body>
      </html>
      

                  		

        
      

          


      


      分享：三層架構(gòu)各層間的訪問(wèn)過(guò)程
      1、傳入值，將值進(jìn)行類型轉(zhuǎn)換(為整型)。

2、創(chuàng)建bll層的對(duì)象，通過(guò)對(duì)象訪問(wèn)bll層的方法調(diào)用bll層。

3、bll層方法中取得數(shù)據(jù)訪問(wèn)層的實(shí)例,實(shí)例化idal層的接口對(duì)象，這個(gè)對(duì)象是由工廠層創(chuàng)建的
      


      

      


      來(lái)源：模板無(wú)憂//所屬分類：.Net教程/更新時(shí)間：2008-08-22


      


      



      


      



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