一个asp无组件上传的实例

<% '判断是否添加了文件 Dim ulFileName, ulResult ulSaveToPath="/upload" '保存文件路径 ulMaxFileSize = 1000000 '文件大小限制 1000,000 ulResult = DoUploadFile(ulMaxFileSize, ulFileName) Function DoUploadFile(MaxUpLoadSize, FileName) Dim Upload, File, formName, formPath, FileExt FileName = "" Set Upload = New upload_yfly '建立上传对象 IF IsNull(Upload.File) THEN DoUploadFile= 6 EXIT Function END IF IF Upload.File.Count = 0 Then DoUploadFile= 5 'No File uploaded Else Set File = Upload.File("ulFileToUpload") If File.FileName = "" Then DoUploadFile= 4 'No File uploaded Else '上传文件不是空的时候处理上传 '在目录后加(/) formPath=upload.Form("ulSaveFilePath") If Right(formPath, 1) <> "/" Then formPath = formPath & "/" End If If File.FileSize < 100 Then DoUploadFile= 1 '文件大小太小 Exit Function End If If File.FileSize > MaxUpLoadSize Then DoUploadFile= 2 '文件大小超过了限制 Exit Function End If FileExt = LCase(Right(File.FileName, 4)) uploadsuc = False If Not (FileExt = ".gif" Or FileExt = ".jpg") Then DoUploadFile= 3 '文件格式不正确 Exit Function End If Randomize ranNum = Int(90000 * Rnd) + 10000 '文件名 FileName = formPath & Year(Now) & Month(Now) & Day(Now) & Hour(Now) & Minute(Now) & Second(Now) & ranNum & FileExt If File.FileSize > 0 Then ''如果 FileSize > 0 说明有文件数据 File.SaveAs server.mappath(FileName) ''保存文件 End If DoUploadFile= 0 End If Set File = Nothing End If Set Upload = Nothing '删除此对象 End Function %> <SCRIPT RUNAT="SERVER" LANGUAGE="VBSCRIPT"> dim upfile_yfly_Stream Class upload_yfly dim Form,File,Version Private Sub Class_Initialize dim iStart,iFileNameStart,iFileNameEnd,iEnd,vbEnter,iFormStart,iFormEnd,theFile dim strDiv,mFormName,mFormValue,mFileName,mFileSize,mFilePath,iDivLen,mStr Version="" File = NULL Form = Null upfile_yfly_Stream=NULL if Request.TotalBytes<1 then Exit Sub set Form=CreateObject("Scripting.Dictionary") set File=CreateObject("Scripting.Dictionary") set upfile_yfly_Stream=CreateObject("Adodb.Stream") upfile_yfly_Stream.mode=3 upfile_yfly_Stream.type=1 upfile_yfly_Stream.open upfile_yfly_Stream.write Request.BinaryRead(Request.TotalBytes) vbEnter=Chr(13)&Chr(10) iDivLen=inString(1,vbEnter)+1 strDiv=subString(1,iDivLen) iFormStart=iDivLen iFormEnd=inString(iformStart,strDiv)-1 while iFormStart < iFormEnd iStart=inString(iFormStart,"name=""") iEnd=inString(iStart+6,"""") mFormName=subString(iStart+6,iEnd-iStart-6) iFileNameStart=inString(iEnd+1,"filename=""") if iFileNameStart>0 and iFileNameStart<iFormEnd then iFileNameEnd=inString(iFileNameStart+10,"""") mFileName=subString(iFileNameStart+10,iFileNameEnd-iFileNameStart-10) iStart=inString(iFileNameEnd+1,vbEnter&vbEnter) iEnd=inString(iStart+4,vbEnter&strDiv) if iEnd>iStart then mFileSize=iEnd-iStart-4 else mFileSize=0 end if set theFile=new FileInfo theFile.FileName=getFileName(mFileName) theFile.FilePath=getFilePath(mFileName) theFile.FileSize=mFileSize theFile.FileStart=iStart+4 theFile.FormName=FormName file.add mFormName,theFile else iStart=inString(iEnd+1,vbEnter&vbEnter) iEnd=inString(iStart+4,vbEnter&strDiv) if iEnd>iStart then mFormValue=subString(iStart+4,iEnd-iStart-4) else mFormValue="" end if form.Add mFormName,mFormValue end if iFormStart=iformEnd+iDivLen iFormEnd=inString(iformStart,strDiv)-1 wend End Sub Private Function subString(theStart,theLen) dim i,c,stemp upfile_yfly_Stream.Position=theStart-1 stemp="" for i=1 to theLen if upfile_yfly_Stream.EOS then Exit for c=ascB(upfile_yfly_Stream.Read(1)) If c > 127 Then if upfile_yfly_Stream.EOS then Exit for stemp=stemp&Chr(AscW(ChrB(AscB(upfile_yfly_Stream.Read(1)))&ChrB(c))) i=i+1 else stemp=stemp&Chr(c) End If Next subString=stemp End function Private Function inString(theStart,varStr) dim i,j,bt,theLen,str InString=0 Str=toByte(varStr) theLen=LenB(Str) for i=theStart to upfile_yfly_Stream.Size-theLen if i>upfile_yfly_Stream.size then exit Function upfile_yfly_Stream.Position=i-1 if AscB(upfile_yfly_Stream.Read(1))=AscB(midB(Str,1)) then InString=i for j=2 to theLen if upfile_yfly_Stream.EOS then inString=0 Exit for end if if AscB(upfile_yfly_Stream.Read(1))<>AscB(MidB(Str,j,1)) then InString=0 Exit For end if next if InString<>0 then Exit Function end if next End Function Private Sub Class_Terminate if not isNull(Form) then form.RemoveAll set form=nothing end if if not isNull(File) then file.RemoveAll set file=nothing end if if not isNull(upfile_yfly_Stream) then upfile_yfly_Stream.close set upfile_yfly_Stream=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 Private function toByte(Str) dim i,iCode,c,iLow,iHigh toByte="" For i=1 To Len(Str) c=mid(Str,i,1) iCode =Asc(c) If iCode<0 Then iCode = iCode + 65535 If iCode>255 Then iLow = Left(Hex(Asc(c)),2) iHigh =Right(Hex(Asc(c)),2) toByte = toByte & chrB("&H"&iLow) & chrB("&H"&iHigh) Else toByte = toByte & chrB(AscB(c)) End If Next End function End Class Class FileInfo dim FormName,FileName,FilePath,FileSize,FileStart Private Sub Class_Initialize FileName = "" FilePath = "" FileSize = 0 FileStart= 0 FormName = "" End Sub Public function SaveAs(FullPath) dim dr,ErrorChar,i SaveAs=1 if trim(fullpath)="" or FileSize=0 or FileStart=0 or FileName="" then exit function if FileStart=0 or right(fullpath,1)="/" then exit function set dr=CreateObject("Adodb.Stream") dr.Mode=3 dr.Type=1 dr.Open upfile_yfly_Stream.position=FileStart-1 upfile_yfly_Stream.copyto dr,FileSize dr.SaveToFile FullPath,2 dr.Close set dr=nothing SaveAs=0 end function End Class </SCRIPT>