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asp将本地的文件上传到服务器
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今天我们讲解如何利用asp的上传功能将本地的文件上传到服务器上。
最简系统包括下面三个文件：
upload.htm --上传口文件，选择本地文件
uploadimg.asp --上传程序控制文件
upload_5xsoft.inc --无组件上传类，此文件初学者不用学习，只要会用就可以了
upload.htm内容————上传口文件，选择本地文件
<html> <head> </head> <body> <table width="80%" border="0" align="center"> <form name="form1" method="post" action="uploadimg.asp" enctype="multipart/form-data"> <tr> <td align="center"><input name="upfile" type="file" id="upfile"></td> </tr> <tr> <td align="center"><input type="submit" name="Submit" value="上传图片"></td> </tr> </form> </table> </body> </html>
uploadimg.asp内容————上传程序控制文件
<!--#include FILE="upload_5xsoft.inc"--> <% dim upload,file,filepath filepath="UPLOAD/" set upload=new upload_5xSoft ''建立上传对象 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 fname = file.filename file.SaveAs Server.mappath(filepath&fname) ''保存文件 end if set file=nothing next set upload=nothing ''删除此对象
upload_5xsoft.inc内容————此文件内容不属于本演练程序内容，本演练应用此类的方法
<SCRIPT RUNAT=SERVER LANGUAGE=VBSCRIPT>
dim oUpFileStream
Class upload_5xSoft
dim Form,File,Version
Private Sub Class_Initialize
dim RequestBinDate,sStart,bCrLf,sInfo,iInfoStart,iInfoEnd,tStream,iStart,oFileInfo
dim iFileSize,sFilePath,sFileType,sFormvalue,sFileName
dim iFindStart,iFindEnd
dim iFormStart,iFormEnd,sFormName
Version="无组件上传类 Version 0.93"
set Form=Server.CreateObject("Scripting.Dictionary")
set File=Server.CreateObject("Scripting.Dictionary")
if Request.TotalBytes<1 then Exit Sub
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)
Response.Write "<font size=""2"">页面执行时间："&FormatNumber((Timer() -time1)*1000,3)&"毫秒</font><br>"
oUpFileStream.Position=0
RequestBinDate =oUpFileStream.Read
iFormStart = 1
iFormEnd = LenB(RequestBinDate)
bCrLf = chrB(13) & chrB(10)
sStart = MidB(RequestBinDate,1, InStrB(iFormStart,RequestBinDate,bCrLf)-1)
iStart = LenB (sStart)
iFormStart=iFormStart+iStart+1
while (iFormStart + 10) < iFormEnd
iInfoEnd = InStrB(iFormStart,RequestBinDate,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,RequestBinDate,sStart)
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
'取得文件名
iFindStart = InStr(iFindEnd,sInfo,"filename=""",1)+10
iFindEnd = InStr(iFindStart,sInfo,"""",1)
sFileName = Mid (sinfo,iFindStart,iFindEnd-iFindStart)
oFileInfo.FileName=getFileName(sFileName)
oFileInfo.FilePath=getFilePath(sFileName)
'取得文件类型
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 -3
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-3
tStream.Position = 0
tStream.Type = 2
tStream.Charset ="gb2312"
sFormvalue = tStream.ReadText
form.Add sFormName,sFormvalue
end if
tStream.Close
iFormStart=iFormStart+iStart+1
wend
RequestBinDate=""
set tStream =nothing
End Sub
Private Sub Class_Terminate
if not Request.TotalBytes<1 then
form.RemoveAll
file.RemoveAll
set form=nothing
set file=nothing
oUpFileStream.Close
set oUpFileStream =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
End Class
Class FileInfo
dim FormName,FileName,FilePath,FileSize,FileType,FileStart
Private Sub Class_Initialize
FileName = ""
FilePath = ""
FileSize = 0
FileStart= 0
FormName = ""
FileType = ""
End Sub
Public function SaveAs(FullPath)
dim oFileStream,ErrorChar,i
SaveAs=1
if trim(fullpath)="" or right(fullpath,1)="/" then exit function
set oFileStream=CreateObject("Adodb.Stream")
oFileStream.Type=1
oFileStream.Mode=3
oFileStream.Open
oUpFileStream.position=FileStart
oUpFileStream.copyto oFileStream,FileSize
oFileStream.SaveToFile FullPath,2
oFileStream.Close
set oFileStream=nothing
SaveAs=0
end function
End Class
</SCRIPT>
此文所诉的内容是上传文件的最简化程式，请朋友们自己分析一下，学会本演练，asp一般的上传功能就基本掌握了
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