无组件上传图片之文件采用方案- ASP

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ASP 中的无组件上传图片之文件采用方案

出处:互联网 整理: 软晨网（RuanChen.com） 发布: 2009-09-13 浏览: 187 ::

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ASP初学者常犯的几个错误（ZT） ASP编程入门进阶（二十）：ADO组件之查询数据记录

首先，图片在页面中能查找选择。设计表单页面index.asp和上传选择页upload.asp，upload.asp在index.asp中以iframe包含。
其次，所选图片应能上传到某文件夹。建立一文件夹uploadimg
最后，传上去的图片应如何引用？很显然，采用UBB立即显示。upload.asp的指向对象upfile.asp具有写入UBB标签的功能。

无组件上传调试文件夹
-- index.asp
-- upload.asp
-- upfile.asp
-- uploadimg文件夹

图片上传采用稻香老农的无组件上传。所以upload.inc文件必不可少。
1，upload.inc（拷贝以下文本框的所有代码）

<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="" 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>

[Ctrl+A 全部选择进行拷贝提示：可先修改部分代码，再点击运行]

2，表单页面index.asp。注意框架包含的上传选择页upload.asp

[Ctrl+A 全部选择进行拷贝提示：可先修改部分代码，再点击运行]
3，上传选择页upload.asp 注意： enctype="multipart/form-data"

[Ctrl+A 全部选择进行拷贝提示：可先修改部分代码，再点击运行]
4，最后一个文件 upfile.asp 主要作用：生成图片名，并将图片上传，同样也要将UBB标签写入index.asp中的textarea中。
（拷贝以下文本框的所有代码）

<html>
<head>
<title>文件上传</title>
</head>
<body>
<script>
parent.document.forms[0].Submit.disabled=false;
</script>
<%
dim upload,file,formName,formPath,iCount,filename,fileExt
set upload=new upload_5xSoft ''建立上传对象 formPath=upload.form("filepath") ''在目录后加(/) if right(formPath,1)<>"/" then formPath=formPath&"/"
response.write "<body>"
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<100 then response.write "请选择你要上传的文件　[ <a href=# onclick=history.go(-1)>重新上传</a> ]" response.end end if if file.filesize>100*1000 then response.write "文件大小超过了限制100K　[ <a href=# onclick=history.go(-1)>重新上传</a> ]" response.end end if fileExt=lcase(right(file.filename,4)) uploadsuc=false
Forum_upload="gif,jpg,png" Forumupload=split(Forum_upload,",") for i=0 to ubound(Forumupload) if fileEXT="."&trim(Forumupload(i)) then uploadsuc=true exit for else uploadsuc=false end if next if uploadsuc=false then response.write "文件格式不正确　[ <a href=# onclick=history.go(-1)>重新上传</a> ]" response.end end if randomize ranNum=int(90000*rnd)+10000 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 for i=0 to ubound(Forumupload) if fileEXT="."&trim(Forumupload(i)) then response.write "<script>parent.form_name.cn_content.value+='[img]"&FileName&"[/img]'</script>" exit for end if next iCount=iCount+1 end if set file=nothing
next
set upload=nothing ''删除此对象
Htmend iCount&" 个文件上传结束!"
sub HtmEnd(Msg) set upload=nothing response.write "上传成功 [ <a href=# onclick=history.go(-1)>继续上传</a>]" response.end
end sub
%>
</body>
</html>

[Ctrl+A 全部选择进行拷贝提示：可先修改部分代码，再点击运行]
当然，保持图片的文件夹uploadimg不能少

ASP初学者常犯的几个错误（ZT） ASP编程入门进阶（二十）：ADO组件之查询数据记录

ASP 中的 无组件上传图片之文件采用方案

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ASP 中的无组件上传图片之文件采用方案