图像图表

如何把图片上传到数据库中并显示出来？

upload.htm

' 上传页面.

html>

body>

p align="center">千花飞舞之图片上传/p>
center>
　　 form name="mainForm" enctype="multipart/form-data"

' 这个Form属性是得到上传的数据的关键.
action="process.asp" method=post>
　　　　input type=file name=mefile>br>
　　 input type=submit name=ok value="上传">
　　 /form>
/center>
/body>/html>

process.asp

' 处理浏览器中送来的数据.

%
response.buffer=true
formsize=request.totalbytes
formdata=request.binaryread(formsize)
bncrlf=chrB(13) chrB(10)
divider=leftB(formdata,clng(instrb(formdata,bncrlf))-1)
datastart=instrb(formdata,bncrlf bncrlf)+4
dataend=instrb(datastart+1,formdata,divider)-datastart
mydata=midb(formdata,datastart,dataend)

set connGraph=server.CreateObject("ADODB.connection")
connGraph.ConnectionString="driver={Microsoft Access Driver (*.mdb)};

DBQ=" server.MapPath("images.mdb") ";uid=;PWD=;"
connGraph.Open

set rec=server.createobject("ADODB.recordset")
rec.Open "select * from [images] where id is null",connGraph,1,3
rec.addnew
rec("img").appendchunk mydata
rec.update
rec.close
set rec=nothing
set connGraph=nothing
%>
 

showimg.asp

' 显示图片.
%
set connGraph=server.CreateObject("ADODB.connection")
connGraph.ConnectionString="driver={Microsoft Access Driver (*.mdb)};

DBQ=" server.MapPath("images.mdb") ";uid=;PWD=;"
connGraph.Open
set rec=server.createobject("ADODB.recordset")
strsql="select img from images where id=" trim(request("id"))
rec.open strsql,connGraph,1,1
Response.ContentType = "image/*"

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