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:

  1. <%
  2. '/////////////////////////////////////////////////////
  3. '// //
  4. '//作用:一个IP地址只允许访问本页一次 //
  5. '//引用:<!-- #include file="Check_Ip.asp" --> //
  6. '// //
  7. '/////////////////////////////////////////////////////
  8.  
  9. 'Response.Charset = 936 '设置输出编码为简体中文
  10. 'Response.Buffer = false '关闭缓冲区
  11.  
  12. Dim Fso,ts,IpList,Cfs
  13.  
  14. '设置Cookies函数
  15. Function SetCookie()
  16. Response.Cookies("IsBrow") = "Brow"
  17. Response.Cookies("IsBrow").Expires = Date+365
  18. End Function
  19.  
  20. '记录IP地址函数
  21. Function WriteIp(FileName, IpAddress)
  22. Set Fso = Server.CreateObject("Scripting.FileSystemObject")
  23. Set ts = Fso.OpenTextFile(Server.MapPath(FileName),8,true)
  24. ts.WriteLine IpAddress
  25. ts.Close
  26. Set ts = Nothing
  27. Set Fso = Nothing
  28. End Function
  29.  
  30. '读取IP地址函数
  31. Function ReadIpList(FileName)
  32. Set Fso = Server.CreateObject("Scripting.FileSystemObject")
  33. If Not Fso.FileExists(Server.MapPath(FileName)) Then
  34. CreateFile("Iplist.txt")
  35. Exit Function
  36. End If
  37.  
  38. Set ts = Fso.OpenTextFile(Server.MapPath(FileName))
  39. Iplist = ts.ReadAll
  40. ts.Close
  41. Set ts = Nothing
  42. Set Fso = Nothing
  43. ReadIpList = Iplist
  44. End Function
  45.  
  46. '创建文件函数
  47. Function CreateFile(FileName)
  48. Set Fso = Server.CreateObject("Scripting.FileSystemObject")
  49. Set Cfs = Fso.CreateTextFile(Server.MapPath(FileName))
  50. Cfs.Close
  51. Set Cfs = Nothing
  52. Set Fso = Nothing
  53. End Function
  54.  
  55. '关闭当前IE窗口函数(注:IE6下通过,其他浏览器未测试)
  56. Function CloseWindow()
  57. 'Response.Write "<script>window.location='javascript:window.opener=null;window.close();'</script>"
  58. Response.Redirect "http://www.baidu.com"
  59. End Function
  60.  
  61. Ip = Request.ServerVariables("REMOTE_ADDR") '获取浏览者IP地址
  62.  
  63. Cookie = Request.Cookies("IsBrow") '获取当前Cookies
  64. 'Response.Write Cookie
  65.  
  66. If Request.ServerVariables("HTTP_X_FORWARDED_FOR") <> "" Then
  67. Response.Write "本站不允许使用代理访问"
  68. Response.End()
  69. Else
  70. If Cookie = "Brow" Then
  71. CloseWindow()
  72. Else
  73. If Instr(ReadIpList("Iplist.txt"),Ip) <> 0 Then
  74. CloseWindow()
  75. Else
  76. WriteIp "Iplist.txt" , Ip
  77. End If
  78. SetCookie()
  79. End If
  80. End If
  81. %>

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。