ASP上传图片时,怎样知道图片的宽、高以及文件的扩展名、文件大小? (26分)

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ASP上传图片时,怎样知道图片的宽、高以及文件的扩展名、文件大小?
 
<SCRIPT RUNAT=SERVER LANGUAGE=VBSCRIPT>
'''''''''''''''''''''''''''''''''''''''''''''''''
'
'请保留此信息: 稻香老农制作 http://www.5xSoft.com/
'
'''''''''''''''''''''''''''''''''''''''''''''''''
dim upfile_5xSoft_Stream
Class upload_5xSoft

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="化境编程界HTTP上传程序 Version 1.0"
if Request.TotalBytes<1 then
Exit Sub
set Form=CreateObject("Scripting.Dictionary")
set File=CreateObject("Scripting.Dictionary")
set upfile_5xSoft_Stream=CreateObject("Adodb.Stream")
upfile_5xSoft_Stream.mode=3
upfile_5xSoft_Stream.type=1
upfile_5xSoft_Stream.open
upfile_5xSoft_Stream.write Request.BinaryRead(Request.TotalBytes)
vbEnter=Chr(13)&amp;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&amp;vbEnter)
iEnd=inString(iStart+4,vbEnter&amp;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&amp;vbEnter)
iEnd=inString(iStart+4,vbEnter&amp;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_5xSoft_Stream.Position=theStart-1
stemp=""
for i=1 to theLen
if upfile_5xSoft_Stream.EOS then
Exit for
c=ascB(upfile_5xSoft_Stream.Read(1))
If c > 127 then
if upfile_5xSoft_Stream.EOS then
Exit for
stemp=stemp&amp;Chr(AscW(ChrB(AscB(upfile_5xSoft_Stream.Read(1)))&amp;ChrB(c)))
i=i+1
else
stemp=stemp&amp;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_5xSoft_Stream.Size-theLen
if i>upfile_5xSoft_Stream.size then
exit Function
upfile_5xSoft_Stream.Position=i-1
if AscB(upfile_5xSoft_Stream.Read(1))=AscB(midB(Str,1)) then
InString=i
for j=2 to theLen
if upfile_5xSoft_Stream.EOS then

inString=0
Exit for
end if
if AscB(upfile_5xSoft_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
form.RemoveAll
file.RemoveAll
set form=nothing
set file=nothing
upfile_5xSoft_Stream.close
set upfile_5xSoft_Stream=nothing
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 &amp;
chrB("&amp;H"&amp;iLow) &amp;
chrB("&amp;H"&amp;iHigh)
else
toByte = toByte &amp;
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_5xSoft_Stream.position=FileStart-1
upfile_5xSoft_Stream.copyto dr,FileSize
dr.SaveToFile FullPath,2
dr.Close
set dr=nothing
SaveAs=0
end function
End Class
</SCRIPT>
<%OPTION EXPLICIT%>
<!--#include FILE="upload_5xsoft.inc"-->
<!--#include file="../conn/conn.asp"-->
<!--#include file="checkuser.asp"-->

<%
dim shop_id,part_id,page,part_name
shop_id=session("shop_id")
part_id=session("part_id")
page=session("page")
part_name=session("part_name")
dim upload,file,formName,formPath,iCount
dim f1,f2,f3,f4
set upload=new upload_5xSoft ''建立上传对象

/////////////////////////////////////////////////////
'Set obj = Server.CreateObject("LyfUpload.UploadFile")
'dim path
'savefile1=obj.SaveFile("file1", "e:/www/0933.netih/bigpic", true) '保存文件到服务器
'typefile1=obj.filetype("file1") '得到文件的Content-Type
'sizefile1=obj.FileSize
'savefile2=obj.SaveFile("file2", "e:/www/0933.netih/smallpic", true) '保存文件到服务器
'typefile2=obj.filetype("file2") '得到文件的Content-Type
'sizefile2=obj.FileSize
'savefile3=obj.SaveFile("file3", "e:/www/0933.netih/smallpic", true) '保存文件到服务器
'typefile3=obj.filetype("file3") '得到文件的Content-Type
'sizefile3=obj.FileSize
'savefile4=obj.SaveFile("file4", "e:/www/0933.netih/smallpic", true) '保存文件到服务器
'typefile4=obj.filetype("file4") '得到文件的Content-Type
'sizefile4=obj.FileSize
///////////////////////////////////////////////////////////
iCount=0
for each formName in upload.file ''列出所有上传了的文件
set file=upload.file(formName) ''生成一个文件对象
if file.FileSize>0 then
''如果 FileSize > 0 说明有文件数据
if iCount=0 then
formPath="../bigpic/"
if iCount=1 then
formPath="../smallpic/"
if iCount=2 then
formPath="../smallpic/"
if iCount=3 then
formPath="../smallpic/"
file.SaveAs Server.mappath(formPath&amp;file.FileName) ''保存文件
'response.write file.FilePath&amp;file.FileName&amp;" ("&amp;file.FileSize&amp;") => "&amp;formPath&amp;File.FileName&amp;" 成功!<br>"
if iCount=0 then
f1=file.FileName
if iCount=1 then
f2=file.FileName
if iCount=2 then
f3=file.FileName
if iCount=3 then
f4=file.FileName
iCount=iCount+1
end if
set file=nothing
next
'response.write "hello!"&amp;f1&amp;"<br>"&amp;f2&amp;"<br>"&amp;f3&amp;"<br>"&amp;f4
set upload=nothing ''删除此对象

dim Conn,sql1
Set Conn = GetConn()
sql1="UPDATE newshop SET shop_photo1='" &amp;
f1 &amp;
"' ,shop_photo2='"&amp;f2&amp;"',shop_photo3='"&amp;f3&amp;"',shop_photo4='"&amp;f4&amp;"' where shop_id=" &amp;
shop_id&amp;" "
conn.Execute sql1

%>
<script language=javascript>
<!--
alert ("上传成功!");
window.close();
-->
</Script>
 
To:iapollo
  你好!
你的程序可以得到:文件全路径、文件名、文件大小。
文件的宽、高、扩展名怎么使用呢?
 
To:iapollo
http://www.delphibbs.com/delphibbs/dispq.asp?lid=2322086
 
ASP上传图片时,怎样知道图片的宽、高以及文件的扩展名、文件大小?
 
你想在上传之前知道 还是上传之后知道
 
在上传之前和之后都想知道。
 

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