这篇文章主要介绍了asp实现限制一个ip只能访问一次的方法,感兴趣的小伙伴们可以参考一下
限制一个ip只能访问一次,现在将asp代码分享给大家:
- <%
- '/////////////////////////////////////////////////////
- '// //
- '//作用:一个IP地址只允许访问本页一次 //
- '//引用:<!-- #include file="Check_Ip.asp" --> //
- '// //
- '/////////////////////////////////////////////////////
- 'Response.Charset = 936 '设置输出编码为简体中文
- 'Response.Buffer = false '关闭缓冲区
- Dim Fso,ts,IpList,Cfs
- '设置Cookies函数
- Function SetCookie()
- Response.Cookies("IsBrow") = "Brow"
- Response.Cookies("IsBrow").Expires = Date+365
- End Function
- '记录IP地址函数
- 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地址函数
- 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
- '创建文件函数
- 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窗口函数(注:IE6下通过,其他浏览器未测试)
- 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") '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实现代码,希望对大家的学习有所帮助。
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