一个Asp无组件文件

发布:zhangbaozz

12 Aug

asp无组件文件上传的实例
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1.库文件(upload.inc.asp)
<% dim oupfilestream class upfile_class dim form,file,version,err private sub class_initialize version = "无组件上传类 version v1.0" err = -1 end sub private sub class_terminate 清除变量及对像 if err < 0 then form.removeall set form = nothing file.removeall set file = nothing oupfilestream.close set oupfilestream = nothing end if end sub public sub getdata (retsize) 定义变量 dim requestbindate,sspace,bcrlf,sinfo,iinfostart,iinfoend,tstream,istart,ofileinfo dim ifilesize,sfilepath,sfiletype,sformvalue,sfilename dim ifindstart,ifindend dim iformstart,iformend,sformname 代码开始 if request.totalbytes < 1 then err = 1 exit sub end if if retsize > 0 then if request.totalbytes > retsize then err = 2 exit sub end if end if set form = server.createobject ("scripting.dictionary") form.comparemode = 1 set file = server.createobject ("scripting.dictionary") file.comparemode = 1 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) oupfilestream.position = 0 requestbindate = oupfilestream.read iformend = oupfilestream.size bcrlf = chrb (13) & chrb (10) 取得每个项目之间的分隔符 sspace = midb (requestbindate,1, instrb (1,requestbindate,bcrlf)-1) istart = lenb (sspace) iformstart = istart+2 分解项目 do 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,sspace)-1 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_class 取得文件属性 ifindstart = instr (ifindend,sinfo,"filename=""",1)+10 ifindend = instr (ifindstart,sinfo,"""",1) sfilename = mid (sinfo,ifindstart,ifindend-ifindstart) ofileinfo.filename = mid (sfilename,instrrev (sfilename, "\")+1) ofileinfo.filepath = left (sfilename,instrrev (sfilename, "\")+1) ofileinfo.fileext = mid (sfilename,instrrev (sfilename, ".")+1) 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 -2 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-2 tstream.position = 0 tstream.type = 2 tstream.charset = "gb2312" sformvalue = tstream.readtext if form.exists (sformname) then form (sformname) = form (sformname) & ", " & sformvalue else form.add sformname,sformvalue end if end if tstream.close iformstart = iformstart+istart+2 如果到文件尾了就退出 loop until (iformstart+2) = iformend requestbindate = "" set tstream = nothing end sub end class 文件属性类 class fileinfo_class dim formname,filename,filepath,filesize,filetype,filestart,fileext 保存文件方法 public function savetofile (path) on error resume next dim ofilestream set ofilestream = createobject ("adodb.stream") ofilestream.type = 1 ofilestream.mode = 3 ofilestream.open oupfilestream.position = filestart oupfilestream.copyto ofilestream,filesize ofilestream.savetofile path,2 ofilestream.close set ofilestream = nothing if err.number<>0 then savetofile=err.number&"**"&err.descripton else savetofile="ok" end if end function 取得文件数据 public function filedate oupfilestream.position = filestart filedate = oupfilestream.read (filesize) end function end class %>

2.处理用户提交后的页面(upload.asp)
 <html> <head> <title>文件上传</title> </head> <body topmargin="0" leftmargin="0"> <table width=100% border=0 cellspacing="0" cellpadding="0"><tr><td class=tablebody1 width=100% height=100% > <% dim upload,file,formname,formpath,filename,fileext dim rannum call upfile() ===========无组件上传(upload_0)==================== sub upfile() set upload=new upfile_class 建立上传对象 upload.getdata (500*1024) 取得上传数据,此处即为500 k if upload.err > 0 then select case upload.err case 1 response.write "请先选择你要上传的文件　[ <a href=# onclick=history.go(-1)>重新上传</a> ]" case 2 response.write "图片大小超过了限制 500 k　[ <a href=# onclick=history.go(-1)>重新上传</a> ]" end select exit sub else formpath=upload.form("filepath") 文件保存目录,此目录必须为程序可读写 if formpath="" then formpath="rwdata/" end if 在目录后加(/) if right(formpath,1)<>"/" then formpath=formpath&"/" end if 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 "请先选择你要上传的图片　[ <a href=# onclick=history.go(-1)>重新上传</a> ]" response.end end if fileext=lcase(file.fileext) if checkfileext(fileext)=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 result=file.savetofile(server.mappath(filename)) 保存文件 if result="ok" then response.write formname&" upload ok, had saved to "&filename&"<br>" else response.write formname&" upload fail,"&result&"<br>" end if end if set file=nothing next set upload=nothing end if end sub 判断文件类型是否合格 private function checkfileext (fileext) dim forumupload forumupload="gif,jpg,bmp,jpeg" forumupload=split(forumupload,",") for i=0 to ubound(forumupload) if lcase(fileext)=lcase(trim(forumupload(i))) then checkfileext=true exit function else checkfileext=false end if next end function %> </td></tr></table> </body> </html>

3.html 表单(upload.html)
<!doctype html public "-//w3c//dtd html 4.01 transitional//en"> <html> <head> <meta http-equiv="content-type" content="text/html; charset=gb2312"> <title>asp 无组件上传</title> </head> <body> 请选择要上传的文件 <form action="upfile.asp" method="post" enctype="multipart/form-data" name="form1"> <input type="file" name="file">  <input type="submit" name="submit" value="提交"> </form> </body> </html>

Tags: asp 上传

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一个Asp无组件文件

Tags: asp 上传

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