技术资料 > ASP技术 > ASP应用 : 不用组件实现上载功能（英文NT)

不用组件实现上载功能（英文NT)

March 25,2004

'---- file name /upaoad.asp/

<%
Public Function BuildUploadRequest(strRequestBin)
Dim PosBeg, PosEnd, boundary, boundaryPos
'Get the boundary
PosBeg = 1
PosEnd = InstrB(PosBeg,strRequestBin,getByteString(chr(13)))
boundary = MidB(strRequestBin,PosBeg,PosEnd-PosBeg)
boundaryPos = InstrB(1,strRequestBin,boundary)

'Get all data inside the boundaries
Do until (boundaryPos = InstrB(strRequestBin,boundary & getByteString("--")))
      'Members variable of objects are put in a dictionary object
      Dim UploadControl
      Set UploadControl = CreateObject("Scripting.Dictionary")

      Dim Pos, Name
      'Get an object name
      Pos = InstrB(boundaryPos,strRequestBin,getByteString("Content-Disposition"))
      Pos = InstrB(Pos,strRequestBin,getByteString("name="))
      PosBeg = Pos + Len("name=") + 1
      PosEnd = InstrB(PosBeg,strRequestBin,getByteString(chr(34)))
      Name = getString(MidB(strRequestBin,PosBeg,PosEnd-PosBeg))

      Dim PosFile, PosBound, ContentType, Value
      'Test if object is of file type
      PosFile = InstrB(BoundaryPos,strRequestBin,getByteString("filename="))
      PosBound = InstrB(PosEnd,strRequestBin,boundary)

      If  PosFile <> 0 AND PosFile < PosBound Then
         'Get FilePathName of the file
         PosBeg = PosFile + Len("filename=") + 1
         PosEnd =  InstrB(PosBeg,strRequestBin,getByteString(chr(34)))
         FilePathName = getString(MidB(strRequestBin,PosBeg,PosEnd-PosBeg))

         'Add filename(with path) to dictionary object
         UploadControl.Add "FilePathName", FilePathName

         'Get Content-Type of the file
         Pos = InstrB(PosEnd,strRequestBin,getByteString("Content-Type:"))
         PosBeg = Pos + Len("Content-Type:") + 1
         PosEnd = InstrB(PosBeg,strRequestBin,getByteString(chr(13)))
         ContentType = getString(MidB(strRequestBin,PosBeg,PosEnd-PosBeg))

         'Add content-type to dictionary object
         UploadControl.Add "ContentType",ContentType

         'Get content of object
         PosBeg = PosEnd + 4
         PosEnd = InstrB(PosBeg,strRequestBin,boundary)-2
         Value = MidB(strRequestBin,PosBeg,PosEnd-PosBeg)
      Else
         'Get content of object
         Pos = InstrB(Pos,strRequestBin,getByteString(chr(13)))
         PosBeg = Pos + 4
         PosEnd = InstrB(PosBeg,strRequestBin,boundary)-2
         Value = getString(MidB(strRequestBin,PosBeg,PosEnd-PosBeg))
      End If

      'Add content to dictionary object
      UploadControl.Add "Value" , Value

      'Add dictionary object to main dictionary
      Set UploadRequest(Name) = UploadControl

      'Loop to next object
      BoundaryPos = InstrB(BoundaryPos+LenB(boundary),strRequestBin,boundary)
Loop
End Function

'String to byte string conversion
Public Function getByteString(strString)
Dim intCount

getByteString = ""

For intCount = 1 to Len(strString)
      getByteString = getByteString & chrB(AscB(Mid(strString,intCount,1)))
Next
End Function

'Byte string to string conversion
Public Function getString(strString)
Dim intCount

getString = ""

For intCount = 1 to LenB(strString)
      getString = getString & chr(AscB(MidB(strString,intCount,1)))
Next
End Function
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