這篇文章主要介紹了asp實現限制一個ip只能訪問一次的方法,感興趣的小伙伴們可以參考一下
限制一個ip只能訪問一次,現在將asp代碼分享給大家:
- <%
- '/////////////////////////////////////////////////////
- '// //
- '//作用:一個IP地址只允許訪問本頁一次 //
- '//引用:<!-- #include file="Check_Ip.asp" --> //
- '// //
- '/////////////////////////////////////////////////////
- 'Response.Charset = 936 '設置輸出編碼為簡體中文
- 'Response.Buffer = false '關閉緩沖區
- Dim Fso,ts,IpList,Cfs
- '設置Cookies函數
- Function SetCookie()
- Response.Cookies("IsBrow") = "Brow"
- Response.Cookies("IsBrow").Expires = Date+365
- End Function
- '記錄IP地址函數
- Function WriteIp(FileName, IpAddress)
- Set Fso = Server.CreateObject("Scripting.FileSystemObject")
- Set ts = Fso.OpenTextFile(Server.MapPath(FileName),8,true)
- ts.WriteLine IpAddress
- ts.Close
- Set ts = Nothing
- Set Fso = Nothing
- End Function
- '讀取IP地址函數
- Function ReadIpList(FileName)
- Set Fso = Server.CreateObject("Scripting.FileSystemObject")
- If Not Fso.FileExists(Server.MapPath(FileName)) Then
- CreateFile("Iplist.txt")
- Exit Function
- End If
- Set ts = Fso.OpenTextFile(Server.MapPath(FileName))
- Iplist = ts.ReadAll
- ts.Close
- Set ts = Nothing
- Set Fso = Nothing
- ReadIpList = Iplist
- End Function
- '創建文件函數
- Function CreateFile(FileName)
- Set Fso = Server.CreateObject("Scripting.FileSystemObject")
- Set Cfs = Fso.CreateTextFile(Server.MapPath(FileName))
- Cfs.Close
- Set Cfs = Nothing
- Set Fso = Nothing
- End Function
- '關閉當前IE窗口函數(注:IE6下通過,其他瀏覽器未測試)
- Function CloseWindow()
- 'Response.Write "<script>window.location='javascript:window.opener=null;window.close();'</script>"
- Response.Redirect "http://www.baidu.com"
- End Function
- Ip = Request.ServerVariables("REMOTE_ADDR") '獲取瀏覽者IP地址
- Cookie = Request.Cookies("IsBrow") '獲取當前Cookies
- 'Response.Write Cookie
- If Request.ServerVariables("HTTP_X_FORWARDED_FOR") <> "" Then
- Response.Write "本站不允許使用代理訪問"
- Response.End()
- Else
- If Cookie = "Brow" Then
- CloseWindow()
- Else
- If Instr(ReadIpList("Iplist.txt"),Ip) <> 0 Then
- CloseWindow()
- Else
- WriteIp "Iplist.txt" , Ip
- End If
- SetCookie()
- End If
- End If
- %>
以上就是分享給大家的asp實現代碼,希望對大家的學習有所幫助。
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