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.net 做的IP 访问限制

 2006-06-22 17:11:40 来源:WEB开发网   
核心提示:偶做留言本的时候想起做这么个,具体思路也许不好,做出来只是抛砖引玉,希望有更好的方法!ip添加页是用了一个ListBox, TextBox,两个Button而在其他的页上则直接用当前IP对比数据库中的IP,代码如下!限制IP添加页HTML代码<%@ Page Language="C#" Aut

偶做留言本的时候想起做这么个,具体思路也许不好,做出来只是抛砖引玉,希望有更好的方法!

ip添加页是用了一个ListBox, TextBox,两个Button

而在其他的页上则直接用当前IP对比数据库中的IP,代码如下!

限制IP添加页HTML代码
<%@ Page Language="C#" AutoEventWireup="true" CodeFile="ip.aspx.cs" Inherits="admin_ip" %>

<!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>无标题页</title>
   <link href="../images/news.CSS" rel="stylesheet" type="text/css" />
</head>
<body>
   <form id="form1" runat="server">
   <div>
     <asp:SqlDataSource ID="SqlDataSource1" runat="server" ConnectionString="<%$ ConnectionStrings:book %>"
       PRoviderName="<%$ ConnectionStrings:book.ProviderName %>" SelectCommand="SELECT [ip] FROM [ip]">
     </asp:SqlDataSource>
     <table align="center" style="border-right: #0066cc 1px dotted; border-top: #0066cc 1px dotted; border-left: #0066cc 1px dotted; border-bottom: #0066cc 1px dotted">
       <tr>
         <td rowspan="2" style="width: 100px; border-right: #33ccff 1px groove; border-top: #33ccff 1px groove; border-left: #33ccff 1px groove; border-bottom: #33ccff 1px groove;">
           <asp:ListBox ID="iplxb" runat="server" DataSourceID="SqlDataSource1" DataTextField="ip"
             DataValueField="ip" Height="194px" Width="153px"></asp:ListBox></td>
         <td style="width: 100px; border-right: #33ccff 1px groove; border-top: #33ccff 1px groove; border-left: #33ccff 1px groove; border-bottom: #33ccff 1px groove;">
           填写标准的IP地址到左下文本框里面,然后点击按纽添加!<br />
           <asp:RegularExpressionValidator ID="RegularExpressionValidator1" runat="server" ControlToValidate="iptb"
             Display="Dynamic" ErrorMessage="IP地址格式不正确" ValidationExpression="([0-9]{2,3})([.])([0-9]{1,3})([.])([0-9]{1,3})([.])([0-9]{1,3})"></asp:RegularExpressionValidator></td>
       </tr>
       <tr>
         <td style="width: 100px; border-right: #33ccff 1px groove; border-top: #33ccff 1px groove; border-left: #33ccff 1px groove; border-bottom: #33ccff 1px groove;">
           <asp:LinkButton ID="LinkButton1" runat="server" >删除选中的行</asp:LinkButton></td>
       </tr>
       <tr>
         <td style="width: 100px; border-right: #33ccff 1px groove; border-top: #33ccff 1px groove; border-left: #33ccff 1px groove; border-bottom: #33ccff 1px groove;">
           <asp:TextBox ID="iptb" runat="server" Width="150px">61.139.33.22</asp:TextBox></td>
         <td style="width: 100px; border-right: #33ccff 1px groove; border-top: #33ccff 1px groove; border-left: #33ccff 1px groove; border-bottom: #33ccff 1px groove;">
           <asp:Button ID="Button1" runat="server" Text="增加" Width="80px" /></td>
       </tr>
    </table>
  
   </div>
   </form>
</body>
</html>
限制IP添加页CS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;

public partial class admin_ip : System.Web.UI.Page
{
   protected void Page_Load(object sender, EventArgs e)
   {
     Server.Execute("chklog.aspx");
   }
   protected void Button1_Click(object sender, EventArgs e)
   {
    
     iplxb.Items.Add(iptb.Text);
     odb.insert("insert into ip (ip) values ('" + iptb.Text + "')");
   }
   protected void LinkButton1_Click(object sender, EventArgs e)
   {
     for (int i = 0; i < iplxb.Items.Count; i++)
     {
       if (iplxb.Items[i].Selected)
       {
         odb.insert("delete from ip where ip='"+iplxb.SelectedItem.Text+"'");
         iplxb.Items.Remove(iplxb.SelectedItem.Text);
       }
     }
   }
}
被需要限制IP的页面调用页的代码
 protected void Page_Load(object sender, EventArgs e)
   {
     string ip = Request.UserHostAddress.ToString();

     if (Convert.ToInt32(odb.scr("select count(*) from [ip] where ip='" + ip + "'")) > 0)
       Response.Write("对不起,您的IP被限制访问,请咨询管理员");
   }
}

http://thcjp.cnblogs.com/archive/2006/06/21/431639.html

Tags:net IP 访问

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