ASP强制刷新网页和判断文件地址实例代码
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("")
OnErrorResumeNext
Dimthisurl,thistext
thisurl=Request("thisurl")'定义文件地址(非Html格式文档)!
ifthisurl=""then
Response.Write("请先输入文件地址!")
Response.End
Endif
Functionobjxmlhttp(xmlurl)
OnErrorResumeNext
Setobjxml=CreateObject("Microsoft.XMLHTTP")
objxml.Open"get",xmlurl,false
objxml.setrequestheader"content-type","application/x-www-form-urlencoded"
objxml.send
objxmlhttp=objxml.responsebody
ifErrthen
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
Endif
EndFunction
Functionbytes2BSTR(vIn)
strReturn=""
Fori=1ToLenB(vIn)
ThisCharCode=AscB(MidB(vIn,i,1))
IfThisCharCode<&H80Then
strReturn=strReturn&Chr(ThisCharCode)
Else
NextCharCode=AscB(MidB(vIn,i+1,1))
strReturn=strReturn&Chr(CLng(ThisCharCode)*&H100+CInt(NextCharCode))
i=i+1
EndIf
Next
bytes2BSTR=strReturn
EndFunction
thisurl2=Split(thisurl,",")
ForEachiiInthisurl2
thistext=bytes2BSTR(objxmlhttp(ii))
ifInStr(thistext,"")<>0then
Response.Write(""&ii&"×
")
Else
Response.Write(""&ii&"√
")
Endif
Next
ifErrthen
Err.Clear
Response.Write("碰到意外!;错误原因:"&Err.Description&"！")
Response.End
Endif
%＞
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。