asp无组件文件上传类
ASP #文件 #上传 #类2012-04-27 17:28
<% '---------------------------------------------------------------------- Dim oUpFileStream '---------------------------------------------------------------------- '文件上传类 Class UpFile_Class Dim Form,File,Version,Err Private Sub Class_Initialize Version = "无惧上传类 Version V1.2" Err = -1 End Sub Private Sub Class_Terminate '清除变量及对像 If Err < 0 Then Form.RemoveAll Set Form = Nothing File.RemoveAll Set File = Nothing oUpFileStream.Close Set oUpFileStream = Nothing End If End Sub Public Sub GetData (MaxSize) '定义变量 Dim RequestBinData,sSpace,bCrLf,sInfo,iInfoStart,iInfoEnd,tStream,iStart,oFileInfo Dim iFileSize,sFilePath,sFileType,sFormValue,sFileName Dim iFindStart,iFindEnd Dim iFormStart,iFormEnd,sFormName '代码开始 If Request.TotalBytes < 1 Then '如果没有数据上传 Err = 1 Exit Sub End If If MaxSize > 0 Then '如果限制大小 If Request.TotalBytes > MaxSize Then Err = 2 '如果上传的数据超出限制 Exit Sub End If End If Set Form = Server.CreateObject ("Scripting.Dictionary") Form.CompareMode = 1 Set File = Server.CreateObject ("Scripting.Dictionary") File.CompareMode = 1 Set tStream = Server.CreateObject ("ADODB.Stream") Set oUpFileStream = Server.CreateObject ("ADODB.Stream") oUpFileStream.Type = 1 oUpFileStream.Mode = 3 oUpFileStream.Open oUpFileStream.Write Request.BinaryRead (Request.TotalBytes) oUpFileStream.Position = 0 RequestBinData = oUpFileStream.Read iFormEnd = oUpFileStream.Size bCrLf = ChrB (13) & ChrB (10) '取得每个项目之间的分隔符 sSpace = MidB (RequestBinData,1, InStrB (1,RequestBinData,bCrLf)-1) iStart = LenB (sSpace) iFormStart = iStart+2 '分解项目 Do iInfoEnd = InStrB (iFormStart,RequestBinData,bCrLf & bCrLf)+3 tStream.Type = 1 tStream.Mode = 3 tStream.Open oUpFileStream.Position = iFormStart oUpFileStream.CopyTo tStream,iInfoEnd-iFormStart tStream.Position = 0 tStream.Type = 2 tStream.CharSet = "gb2312" sInfo = tStream.ReadText '取得表单项目名称 iFormStart = InStrB (iInfoEnd,RequestBinData,sSpace)-1 iFindStart = InStr (22,sInfo,"name=""",1)+6 iFindEnd = InStr (iFindStart,sInfo,"""",1) sFormName = Mid (sinfo,iFindStart,iFindEnd-iFindStart) '如果是文件 If InStr (45,sInfo,"filename=""",1) > 0 Then Set oFileInfo = new FileInfo_Class '取得文件属性 iFindStart = InStr (iFindEnd,sInfo,"filename=""",1)+10 iFindEnd = InStr (iFindStart,sInfo,"""",1) sFileName = Mid (sinfo,iFindStart,iFindEnd-iFindStart) oFileInfo.FileName = Mid (sFileName,InStrRev (sFileName, "")+1) oFileInfo.FilePath = Left (sFileName,InStrRev (sFileName, "")) oFileInfo.FileExt = Mid (sFileName,InStrRev (sFileName, ".")+1) iFindStart = InStr (iFindEnd,sInfo,"Content-Type: ",1)+14 iFindEnd = InStr (iFindStart,sInfo,vbCr) oFileInfo.FileType = Mid (sinfo,iFindStart,iFindEnd-iFindStart) oFileInfo.FileStart = iInfoEnd oFileInfo.FileSize = iFormStart -iInfoEnd -2 oFileInfo.FormName = sFormName file.add sFormName,oFileInfo else '如果是表单项目 tStream.Close tStream.Type = 1 tStream.Mode = 3 tStream.Open oUpFileStream.Position = iInfoEnd oUpFileStream.CopyTo tStream,iFormStart-iInfoEnd-2 tStream.Position = 0 tStream.Type = 2 tStream.CharSet = "gb2312" sFormValue = tStream.ReadText If Form.Exists (sFormName) Then Form (sFormName) = Form (sFormName) & ", " & sFormValue else form.Add sFormName,sFormValue End If End If tStream.Close iFormStart = iFormStart+iStart+2 '如果到文件尾了就退出 Loop Until (iFormStart+2) >= iFormEnd RequestBinData = "" Set tStream = Nothing End Sub End Class '---------------------------------------------------------------------------------------------------- '文件属性类 Class FileInfo_Class Dim FormName,FileName,FilePath,FileSize,FileType,FileStart,FileExt '保存文件方法 Public Function SaveToFile (Path) On Error Resume Next Dim oFileStream Set oFileStream = CreateObject ("ADODB.Stream") oFileStream.Type = 1 oFileStream.Mode = 3 oFileStream.Open oUpFileStream.Position = FileStart oUpFileStream.CopyTo oFileStream,FileSize oFileStream.SaveToFile Path,2 oFileStream.Close Set oFileStream = Nothing End Function '取得文件数据 Public Function FileData oUpFileStream.Position = FileStart FileData = oUpFileStream.Read (FileSize) End Function End Class %>
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