.NET made by IP access restrictions

xiaoxiao2021-04-06  262

When I do a message, I think of this, I have to do this, the specific idea is not good, I have made it just throwing bricks, I hope there is a better way!

IP adds page is used with a listbox, Textbox, two button

On other pages, use the current IP to compare the IP in the database, the code is as follows!

Limit IP Add Page HTML Code

<% @ Page language = "c #" autoeventwireup = "true" codefile = "ip.aspx.cs" inherits = "admin_ip"%> " HTML XMLns = "http://www.w3.org/1999/xhtml"> No title page </ 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] "> </ ask: SQLDataSource> <table align =" 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 =</p> <p>Width: 100px; border-right: # 33ccff 1px groove; border-top: # 33ccff 1px groove; border-left: # 33ccff 1px groove; border-bottom: # 33ccff 1px groove; "> Fill in the standard IP address to the left Inside the text box, then click to press New! <br /> <asp: RegularExpressionValidator ID = "RegularExpressionValidator1" runat = "server" ControlToValidate = "iptb" Display = "Dynamic" ErrorMessage = "IP address format is incorrect" 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 =" limited "onclick =" linkbutton1_click "> Delete selected row </ 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 = "</p> <p>Server "onclick =" Button1_click "text =" increase "width =" 80px "/> </ td> </ tr> </ table> </ div> </ form> </ body> </ html> limit IP added Page CS code</p> <p>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 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);}}}}</p> <p>The code that is required to limit the page call page for IP</p> <p>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 (" Sorry, your IP is restricted, please consult the administrator ");}}</p> <p>Http://thcjp.cnblogs.com/archive/2006/06/21/431639.html</p></div><div class="text-center mt-3 text-grey"> 转载请注明原文地址:https://www.9cbs.com/read-132340.html</div><div class="plugin d-flex justify-content-center mt-3"></div><hr><div class="row"><div class="col-lg-12 text-muted mt-2"><i class="icon-tags mr-2"></i><span class="badge border border-secondary mr-2"><h2 class="h6 mb-0 small"><a class="text-secondary" href="tag-2.html">9cbs</a></h2></span></div></div></div></div><div class="card card-postlist border-white shadow"><div class="card-body"><div class="card-title"><div class="d-flex justify-content-between"><div><b>New Post</b>(<span class="posts">0</span>) </div><div></div></div></div><ul class="postlist list-unstyled"> </ul></div></div><div class="d-none threadlist"><input type="checkbox" name="modtid" value="132340" checked /></div></div></div></div></div><footer class="text-muted small bg-dark py-4 mt-3" id="footer"><div class="container"><div class="row"><div class="col">CopyRight © 2020 All Rights Reserved </div><div class="col text-right">Processed: <b>0.059</b>, SQL: <b>9</b></div></div></div></footer><script src="./lang/en-us/lang.js?2.2.0"></script><script src="view/js/jquery.min.js?2.2.0"></script><script src="view/js/popper.min.js?2.2.0"></script><script src="view/js/bootstrap.min.js?2.2.0"></script><script src="view/js/xiuno.js?2.2.0"></script><script src="view/js/bootstrap-plugin.js?2.2.0"></script><script src="view/js/async.min.js?2.2.0"></script><script src="view/js/form.js?2.2.0"></script><script> var debug = DEBUG = 0; 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