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纯ASP上传图像文件到数据库的最佳例子


出处:互联网   整理: 软晨网(RuanChen.com)   发布: 2009-11-03   浏览: 32 ::
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  getfile.htm
-------------------------
<html>

<head>
<title>保存图片到数据库</title>
</head>

<body>
<b>

<p></b>你可以找个图片试试,保存完毕后会有提示</p>

<form METHOD="POST" ENCTYPE="multipart/form-data" ACTION="savetodb.asp">
  <p>Email : <input NAME="email" VALUE="[email protected]" size="20"><br>
  Picture : <input TYPE="file" NAME="blob"><br>
  <input TYPE="submit" NAME="Enter"> </p>
</form>
</body>
</html>

savetodb.asp
----------------------------------
<%

Response.Buffer = TRUE
Response.Clear
byteCount = Request.TotalBytes

RequestBin = Request.BinaryRead(byteCount)
Dim UploadRequest
Set UploadRequest = CreateObject("Scripting.Dictionary")

BuildUploadRequest  RequestBin

email = UploadRequest.Item("email").Item("Value")

contentType =  UploadRequest.Item("blob").Item("ContentType")
filepathname = UploadRequest.Item("blob").Item("FileName")
filename = Right(filepathname,Len(filepathname)-InstrRev(filepathname,"\"))
picture = UploadRequest.Item("blob").Item("Value")

'Response.ContentType = contentType
'Response.binaryWrite picture

set objCn = server.createobject("adodb.connection")
set objRst = server.createobject("adodb.recordset")
objCn.Open "upload"
objrst.Open "pic", objcn, 1,3,2
objrst.addnew
objrst.fields("filename")=filename
objrst.fields("type")="gif"

objrst.fields("what").appendchunk picture
objrst.update
response.write "<a href=showpic.asp?id=" & objrst("id") & ">第" & objrst("id") & "个图片。</a>"
objrst.close

objCn.close
set objrst=nothing
set objcn = nothing
%>
<!--#include file="upload.asp"-->

showpic.asp
----------------------------------------
<%
set objCn = server.createobject("adodb.connection")
set objRst = server.createobject("adodb.recordset")
objCn.Open "upload"
objrst.Open "select what from pic where id=" & request("id"), objcn

if not objrst.eof then
    response.binarywrite objrst("what")
end if

objrst.close
objCn.close
set objrst=nothing
set objcn = nothing
%>


upload.asp
-------------------------------------------
<%
Sub BuildUploadRequest(RequestBin)
    'Get the boundary
    PosBeg = 1
    PosEnd = InstrB(PosBeg,RequestBin,getByteString(chr(13)))
    boundary = MidB(RequestBin,PosBeg,PosEnd-PosBeg)
    boundaryPos = InstrB(1,RequestBin,boundary)
    'Get all data inside the boundaries
    Do until (boundaryPos=InstrB(RequestBin,boundary & getByteString("--")))
        'Members variable of objects are put in a dictionary object
        Dim UploadControl
        Set UploadControl = CreateObject("Scripting.Dictionary")
        'Get an object name
        Pos = InstrB(BoundaryPos,RequestBin,getByteString("Content-Disposition"))
        Pos = InstrB(Pos,RequestBin,getByteString("name="))