这篇文章主要介绍了ASP强制刷新网页和判断文件地址实例代码,需要的朋友可以参考下
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
- <%
- 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
- %>
以上就是ASP强制刷新网页和判断文件地址实例代码,希望对大家的学习有所帮助。
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