标题: ASP基础实例教程之asp实现图片上传(组件版)[二]
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ASP基础实例教程之asp实现图片上传(组件版)[二]


下面来学习uploadsave.asp upload_asjob.asp 两个文件的组合就是一个组件
组件就是直接拿来用的东西。。里面也涉及到很多函数。。
如果去分析一个组件里面的东西一定会晕死在里面
所以我们直接拿来用就可以。。。当然高手除外。。高手可以研究。。
但我不是高手。。请见谅。。
uploadsave.asp文件 这是个处理文件 接收upload.asp的提交

代码如下:
CODE:

<% Response.Buffer=True %>

<html>

<head>
<title>图片上传</title>


</head>

<body topmargin="20">
<!--#include FILE="upload_asjob.asp"-->
<%
set upload=new upload_5xsoft
set file=upload.file("file1")
if file.fileSize>0 then
  '自动生成文件名
  filename=date()
  filename=filename&time()
  filename=replace(filename,"-","")
  filename=replace(filename,":","")
  filename=replace(filename," ","")
  filename=filename+"."
  filenameend=file.filename
  filenameend=split(filenameend,".")
  if filenameend(1)="gif" or filenameend(1)="jpg" or filenameend(1)="jpeg" then
    filename=filename&filenameend(1)
    file.saveAs Server.mappath("uppic/"&filename)
    response.write "<p align=center>"
    response.write "图片已成功上传至服务器中,请使用下面红色地址添加图片,<br><p align=center><a href=upload.asp>点击这里重新上传图片!</a>"
    response.write "</p>"
    response.write "<p align=center>"
    response.write "<font color=red>"
    response.write "asjobcom/uppic/"&filename
    response.write "</font></p>"
    response.write "<p align=center>"
    response.write "<a href='uppic/"&filename&"' target=_blank>点击这里查看上传的图片</a>"
    response.write "</p>"
    response.write "<p align=center><a href=javascript:window.close()>【关闭窗口】</a>"
  else
    response.write "文件格式不对"
    response.write "<a href=upload.asp>返回"
  end if
  set file=nothing
else
  response.write "文件内容不能为空"
  response.write "<a href=upload.asp>返回"
end if
set upload=nothing
response.write "<br>"
%>




upload_asjob.asp
代码如下:
CODE:

<SCRIPT RUNAT=SERVER LANGUAGE=VBSCRIPT>



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)&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_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&Chr(AscW(ChrB(AscB(upfile_5xSoft_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_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 & 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_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>



很长的代码,我也在学习中,等到全部明白了我再做解释
请见谅。。

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