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ASP强制刷新网页和判断文件地址

2024-05-04 11:07:12
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强制刷新网页

<%
 ’强制性刷新随机验证码
 ’让随机验证码每次按IE的后退按钮时,返回登录页面的随即码都自动刷新,
 Response.expires=-1
 Response.AddHeader"pragma","no-cache"
 Response.AddHeader"cache-control","no-store"
%>

判断文件地址是否有效

<%
 ’原创作者:小艺 QQ:52093 时间:2005.6.30
 Response.Write("")
 On Error Resume Next
 Dim thisurl,thistext
 thisurl=Request("thisurl") ’定义文件地址(非Html格式文档)!
 if thisurl="" then
  Response.Write("请先输入文件地址!")
  Response.End
 End if
 Function objxmlhttp(xmlurl)
  On Error Resume Next
  Set objxml = CreateObject("Microsoft.XMLHTTP")
  objxml.Open "get",xmlurl,false
  objxml.setrequestheader "content-type","application/x-www-form-urlencoded"
  objxml.send
  objxmlhttp = objxml.responsebody
  if Err then
   Err.Clear
   Response.Write("建立连接失败,文件不存在或网络有问题!;错误原因:"&Err.Description&"!")
   Response.End
  End if
 End Function
 Function bytes2BSTR(vIn)
  strReturn = ""
  For i = 1 To LenB(vIn)
   ThisCharCode = AscB(MidB(vIn,i,1))
   If ThisCharCode < &H80 Then
    strReturn = strReturn & Chr(ThisCharCode)
   Else
    NextCharCode = AscB(MidB(vIn,i+1,1))
    strReturn = strReturn & Chr(CLng(ThisCharCode) * &H100 + CInt(NextCharCode))
    i = i + 1
   End If
  Next
  bytes2BSTR = strReturn
 End Function
 thisurl2=Split(thisurl,",")
 For Each ii In thisurl2
  thistext=bytes2BSTR(objxmlhttp(ii))
  if InStr(thistext,"")<>0 then
   Response.Write(""& ii &" ×
")
  Else
   Response.Write(""& ii &" √
")
  End if
 Next
 if Err then
  Err.Clear
  Response.Write("碰到意外!;错误原因:"&Err.Description&"!")
  Response.End
 End if
%>

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