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> <form method="post" action="uploadimg.asp" enctype="multipart/form-data"> <tr> <td><input type="file"></td> </tr> <tr> <td><input type="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)="https://www.jb51.net/" 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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