限制一个 ip 只能访问一次,现在将 asp 程式码分享给大家:
<%
'/////////////////////////////////////////////////////
'// //
'//作用:一个 IP 地址只允许访问本页一次 //
'//引用: //
‘// //
‘/////////////////////////////////////////////////////
‘Response.Charset = 936 ‘ 设定输出编码为简体中文
‘Response.Buffer = false ‘ 关闭缓冲区
Dim Fso,ts,IpList,Cfs
‘ 设定 Cookies 函式
Function SetCookie()
Response.Cookies(“IsBrow”) = “Brow”
Response.Cookies(“IsBrow”).Expires = Date+365
End Function
‘ 记录 IP 地址函式
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
‘ 读取 IP 地址函式
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
‘ 建立档案函式
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
‘ 关闭当前 IE 视窗函式 (注:IE6 下通过, 其他浏览器未测试)
Function CloseWindow()
‘Response.Write “”
Response.Redirect “http://www.baidu.com”
End Function
Ip = Request.ServerVariables(“REMOTE_ADDR”) ‘ 获取浏览者 IP 地址
Cookie = Request.Cookies(“IsBrow”) ‘ 获取当前 Cookies
‘Response.Write Cookie
If Request.ServerVariables(“HTTP_X_FORWARDED_FOR”) <> “” Then
Response.Write “ 本站不允许使用代理访问”
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
%>
以上就是分享给大家的 asp 实现程式码,希望对大家的学习有所帮助。