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一个asp无组件上传的实例

王朝asp·作者佚名  2006-01-08
窄屏简体版  字體: |||超大  

<%

'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>

 
 
 
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