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="<%"
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]"></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" OnClick="LinkButton1_Click">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" OnClick="Button1_Click" 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
"chklog.aspx");
"insert into ip (ip) values ('" + iptb.Text + "')");
"delete from ip where ip='"+iplxb.SelectedItem.Text+"'");
iplxb.Items.Remove(iplxb.SelectedItem.Text);
"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");
}
}
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