asp网站后台上传图片出错 提示未定义类

“Microsoft VBScript 运行时错误 '800a01fa'

类没有被定义: 'upload_5xSoft'

\up.asp, line 240”

这个页面是许多朋友做网站调试时遇到的问题，原来好好的网站源码，就因为这个只能丢掉，关于这个问题，百度有许多回答，但都只是粗劣的说下，让一些新手朋友不知道要从那里入手才可以。今天就这个问题我做一个详细的回答。

“upload_5xsoft”这个是化境上传组件文件，出错的原因为有很多，最多见的就是现在许多朋友做调试都不用IIS，而是用的调试工具，所以会出现这样的错误。因为你是用NETBOX调试ASP,所以就导致了这个错误.NETBOX不支持

<SCRIPT RUNAT=SERVER LANGUAGE=VBSCRIPT> 这样的语句.

第一种改法：在upload.inc中有如下代码

<SCRIPT RUNAT=SERVER LANGUAGE=VBSCRIPT> <% dim Data_5xsoft Class upload_5xsoft dim objForm,objFile,Version Public function Form(strForm) strForm=lcase(strForm) if not objForm.exists(strForm) then Form="" else Form=objForm(strForm) end if end function Public function File(strFile) strFile=lcase(strFile) if not objFile.exists(strFile) then set File=new FileInfo else set File=objFile(strFile) end if end function Private Sub Class_Initialize dim RequestData,sStart,vbCrlf,sInfo,iInfoStart,iInfoEnd,tStream,iStart,theFile dim iFileSize,sFilePath,sFileType,sFormValue,sFileName dim iFindStart,iFindEnd dim iFormStart,iFormEnd,sFormName Version="化境HTTP上传程序 Version 2.0" set objForm=Server.CreateObject("Scripting.Dictionary") set objFile=Server.CreateObject("Scripting.Dictionary") if Request.TotalBytes<1 then Exit Sub set tStream = Server.CreateObject("adodb.stream") set Data_5xsoft = Server.CreateObject("adodb.stream") Data_5xsoft.Type = 1 Data_5xsoft.Mode =3 Data_5xsoft.Open Data_5xsoft.Write Request.BinaryRead(Request.TotalBytes) Data_5xsoft.Position=0 RequestData =Data_5xsoft.Read iFormStart = 1 iFormEnd = LenB(RequestData) vbCrlf = chrB(13) & chrB(10) sStart = MidB(RequestData,1, InStrB(iFormStart,RequestData,vbCrlf)-1) iStart = LenB (sStart) iFormStart=iFormStart+iStart+1 while (iFormStart + 10) < iFormEnd iInfoEnd = InStrB(iFormStart,RequestData,vbCrlf & vbCrlf)+3 tStream.Type = 1 tStream.Mode =3 tStream.Open Data_5xsoft.Position = iFormStart Data_5xsoft.CopyTo tStream,iInfoEnd-iFormStart tStream.Position = 0 tStream.Type = 2 tStream.Charset ="gb2312" sInfo = tStream.ReadText tStream.Close '取得表单项目名称 iFormStart = InStrB(iInfoEnd,RequestData,sStart) iFindStart = InStr(22,sInfo,"name=""",1)+6 iFindEnd = InStr(iFindStart,sInfo,"""",1) sFormName = lcase(Mid (sinfo,iFindStart,iFindEnd-iFindStart)) '如果是文件 if InStr (45,sInfo,"filename=""",1) > 0 then set theFile=new FileInfo '取得文件名 iFindStart = InStr(iFindEnd,sInfo,"filename=""",1)+10 iFindEnd = InStr(iFindStart,sInfo,"""",1) sFileName = Mid (sinfo,iFindStart,iFindEnd-iFindStart) theFile.FileName=getFileName(sFileName) theFile.FilePath=getFilePath(sFileName) '取得文件类型 iFindStart = InStr(iFindEnd,sInfo,"Content-Type: ",1)+14 iFindEnd = InStr(iFindStart,sInfo,vbCr) theFile.FileType =Mid (sinfo,iFindStart,iFindEnd-iFindStart) theFile.FileStart =iInfoEnd theFile.FileSize = iFormStart -iInfoEnd -3 theFile.FormName=sFormName if not objFile.Exists(sFormName) then objFile.add sFormName,theFile end if else '如果是表单项目 tStream.Type =1 tStream.Mode =3 tStream.Open Data_5xsoft.Position = iInfoEnd Data_5xsoft.CopyTo tStream,iFormStart-iInfoEnd-3 tStream.Position = 0 tStream.Type = 2 tStream.Charset ="gb2312" sFormValue = tStream.ReadText tStream.Close if objForm.Exists(sFormName) then objForm(sFormName)=objForm(sFormName)&", "&sFormValue else objForm.Add sFormName,sFormValue end if end if iFormStart=iFormStart+iStart+1 wend RequestData="" set tStream =nothing End Sub Private Sub Class_Terminate if Request.TotalBytes>0 then objForm.RemoveAll objFile.RemoveAll set objForm=nothing set objFile=nothing Data_5xsoft.Close set Data_5xsoft =nothing end if End Sub Private function GetFilePath(FullPath) If FullPath <> "" Then GetFilePath = left(FullPath,InStrRev(FullPath, "\")) Else GetFilePath = "" End If End function Private function GetFileName(FullPath) If FullPath <> "" Then GetFileName = mid(FullPath,InStrRev(FullPath, "\")+1) Else GetFileName = "" End If End function End Class Class FileInfo dim FormName,FileName,FilePath,FileSize,FileType,FileStart Private Sub Class_Initialize FileName = "" FilePath = "" FileSize = 0 FileStart= 0 FormName = "" FileType = "" End Sub Public function SaveAs(FullPath) dim dr,ErrorChar,i SaveAs=true if trim(fullpath)="" or FileStart=0 or FileName="" or right(fullpath,1)="/" then exit function set dr=CreateObject("Adodb.Stream") dr.Mode=3 dr.Type=1 dr.Open Data_5xsoft.position=FileStart Data_5xsoft.copyto dr,FileSize dr.SaveToFile FullPath,2 dr.Close set dr=nothing SaveAs=false end function End Class </SCRIPT> %>

你只要将我用红色标记的换成后面蓝色标注的就可以正常调试了！

第二种是用的IIS调试，这个如果出现上面的错误，请检查下你的upload_5xsoft.inc

是不是存在，是否被调用了，