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Access是一种桌面数据库，只适合数据量少的应用，在处理少量数据和单机访问的数据库时是很好的，效率也很高。但是它的同时访问客户端不能多于4个。access数据库有一定的极限，如果数据达到100M左右，很容易造成服务器iis假死，或者消耗掉服务器的内存导致服务器崩溃。上传|数据|数据库 关于图片上传的例子在网上有良多文章和原代码。然而每次上服装论坛阅读帖子的时分都是看到良多网友对图片上传感应头疼和费事。其实这个成绩也是已经让我感应头疼。也看过了很多的文章和代码。如今我写的这篇文章是把我对照喜好的一篇代码和动网里的高手对这篇代码优化后再加上我增添一些代码联合出来的！呵呵，其实这篇文章是沾了写这篇代码的人(稻喷鼻居士)和动网里那些高手的光。:)
好了，不说空话了。入手下手来搭建所需求的情况和数据布局！
先新建一个名字叫photo的文件夹。(我在这里就是把图片上传到这个文件夹里的。)创立一个名字叫database的数据库。再接着创立一个名字叫sFile的表。内外设计四个字段分离是id(int),image(varchar),image1(varchar),image2(varchar)。我这里用的数据库是SQL。
相干的文件
register.asp
<html>
<head>
<title>文件</title>
<meta http-equiv="Content-Type" content="text/html; charset=gb2312">
</head>
<body>
<form name="form1" method="post" action="save.asp">
<table width="50%" border="1" cellspacing="0" cellpadding="0" align="center">
<tr>
<td width="20%"><a href="#" >图片上传</a></td>
<td width="80%">
<input type="text" name="myface">
<input type="text" name="myface1">
<input type="text" name="myface2">
(此处用户不用填图片上传后主动生成) </td>
</tr>
<tr>
<td colspan="2" align="center">
<input type="submit" name="Submit" value="提交">
<input type="reset" name="Submit2" value="重设">
</td>
</tr>
</table>
</form>
</body>
</html>
reg_upload.asp
<html>
<head>
<title></title>
<meta http-equiv="Content-Type" content="text/html; charset=gb2312">
<link rel="stylesheet" href="CSS/style.css" type="text/css">
</head>
<body leftmargin="0" topmargin="0" >
<br>
<br>
<br>
<table width="90%" border="0" align="center" bgcolor="#000000" height="152" cellspacing="1">
<tr>
<td height="34" align="center" bgcolor="#FFFFFF"><font color="#FFFF33"><b><font size="4" color="#000000">选择图片</font></b></font></td>
</tr>
<tr>
<td bgcolor="#FFFFFF">
<form name="form" method="post" action="upfile.asp" enctype="multipart/form-data" >
<input type="hidden" name="filepath" value="photo">
<input type="hidden" name="act" value="upload">
<input type="file" name="file1" size="30"><br>
<input type="file" name="file2" size="30"><br>
<input type="file" name="file3" size="30">
<input type="submit" name="Submit" value="粘 贴" class="tl">
</form>
</td>
</tr>
</table>
</body>
</html>
upfile.asp
<!--#include FILE="upload.inc"-->
<html>
<head>
<title>文件上传</title>
</head>
<body>
<%
dim arr(3)
dim upload,file,formName,formPath,iCount,filename,fileExt,i
set upload=new upload_5xSoft ''''创立上传对象
formPath=upload.form("filepath")
''''在目次后加(/)
if right(formPath,1)<>"/" then formPath=formPath&"/"
iCount=0
i=0
for each formName in upload.file ''''列出一切上传了的文件
set file=upload.file(formName) ''''生成一个文件对象
if file.filesize<0 then
response.write "<font size=2>请先选择你要上传的图片 [ <a href=# onclick=history.go(-1)>从头上传</a> ]</font>"
response.end
end if
if file.filesize>100000 then
response.write "<font size=2>图片巨细超越了限制 [ <a href=# onclick=history.go(-1)>从头上传</a> ]</font>"
response.end
end if
if fileEXT<>".gif" and fileEXT<>".jpg" then
response.write "<font size=2>文件格局不合错误 [ <a href=# onclick=history.go(-1)>从头上传</a> ]</font>"
response.end
end if
fileExt=lcase(right(file.filename,4))
filename=formPath&year(now)&month(now)&day(now)&hour(now)&minute(now)&second(now)&file.FileName
arr(i)=filename
i=i+1
if file.FileSize>0 then ''''假如 FileSize > 0 申明有文件数据
file.SaveAs Server.mappath(filename) ''''保留文件
'' response.write file.FilePath&file.FileName&" ("&file.FileSize&") => "&formPath&File.FileName&" 胜利!<br>"
iCount=iCount+1
end if
set file=nothing
next
if instr(arr(0),".")=0 and instr(arr(1),".")=0 and instr(arr(2),".")=0 then
response.write "<font size=2>请先选择你要上传的图片 [ <a href=# onclick=history.go(-1)>从头上传</a> ]</font>"
response.end
end if
if instr(arr(0),".")<>0 then
response.write "<script>opener.document.forms[0].myface.value=''" & arr(0) & "''</script>"
else
response.write "<script>opener.document.forms[0].myface.value=''''</script>"
end if
if instr(arr(1),".")<>0 then
response.write "<script>opener.document.forms[0].myface1.value=''" & arr(1) & "''</script>"
else
response.write "<script>opener.document.forms[0].myface1.value=''''</script>"
end if
if instr(arr(2),".")<>0 then
response.write "<script>opener.document.forms[0].myface2.value=''" & arr(2) & "''</script>"
else
response.write "<script>opener.document.forms[0].myface2.value='''' </script>"
end if
set upload=nothing ''''删除此对象
session("upface")="done"
Htmend iCount&" 个文件上传停止!"
sub HtmEnd(Msg)
set upload=nothing
response.write "<html><head><meta http-equiv=''Refresh'' content=''3 url=""javascript:window.close();""''></head><body><center><br><br>文件上传胜利<br>感谢你的撑持！<br>本窗口三秒后主动封闭</center></body></html>"
response.end
end sub
%>
</body>
</html>
upload.inc
<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>
save.asp
<% dim dsn,conn
dsn="driver={sql server};server=127.0.0.1;uid=sa;pwd=;database=database"
set conn=server.createobject("adodb.connection")
conn.open dsn
%>
<% dim file,file1,file2
file=trim(request.form("myface"))
file1=trim(request.form("myface1"))
file2=trim(request.form("myface2"))
set rs=server.createobject("adodb.recordset")
sql="Insert Into sFile(image,image1,image2) Values(''"& file &"'',''"& file1&"'',''"& file2&"'')"
conn.execute(sql)
response.redirect "ok.asp"
%>
结论：和PHP一样，ASP简单而易于维护，很适合小型网站应用，通过DCOM和MTS技术，ASP甚至还可以完成小规模的企业应用，但ASP的致命缺点就是不支持跨平台的系统，在大型项目开发和维护上非常困难。 |
|
|Archiver|手机版|仓酷云
鄂ICP备14007578号-2
发表于 2015-2-3 23:30:53
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发表于 2015-4-7 15:27:43