ASP无组件上传源码解释
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发布时间:2022-04-22 08:41
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热心网友
时间:2022-04-22 10:11
<%@LANGUAGE="VBSCRIPT" CODEPAGE="936"%>
<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" " http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd">
<html xmlns=" http://www.w3.org/1999/xhtml">
<head>
<meta http-equiv="Content-Type" content="text/html; charset=gb2312" />
<title>无标题文档</title>
</head><body>
<%If request.totalbytes>0 Then
formsize=request.totalbytes ' 取二进制流字节长度
formdata=request.binaryread(formsize) ' 读取二进制流内容
bncrlf=chrB(13)&chrB(10)
datastart=instrb(formdata,bncrlf&bncrlf)+3 ' 取二进制流文件开始位置 (两个回车换行符)
divider=leftB(formdata,instrb(formdata,bncrlf)-1) ' 定义取二进制流 Field 分隔标记 (内容为二进制)
dataend=instrb(datastart,formdata,divider)-datastart ' 取二进制流文件部分结束位置
'将文件信息保存到数据库
'Call ImgToDb() '将上传的图片以二进制保存到数据库中
Call SaveTofile() '将上传的文件保存到服务器
End If
Sub ImgToDb() '将上传的图片以二进制保存到数据库中
mydata=midb(formdata,datastart+1,dataend)'
Set conn=server.CreateObject("adodb.connection")
conn.provider="microsoft.jet.oledb.4.0"
conn.open server.mappath("book/stu.mdb")
Set rs=server.CreateObject("adodb.recordset")
rs.open "select * from img",conn,3
rs.movelast
rs.addnew
rs("img").appendchunk mydata
rs.update
response.binarywrite rs(1)
response.End
End Sub
Sub SaveTofile()'将上传的文件保存到服务器
'2.将获取的信息以二进制流文件存放 --- stm
savepath=server.mappath("images")&"\" '根据情况自己要先建立相应目录 或者开启fso自动建立
Set strm=createObject("adodb.str"&"eam")
with strm
.type=1 ' 二进制模式
.mode=3 ' 指定打开模式为读写
.open
.write formdata '写入二进制流内容
'以文本模式读取数据,用于获得提交上来的文件路径及名称等信息
.position=0 '将游标指向数据首部
.type=2 '以文本模式读取
.CharSet = "gb2312" '设置中文编码
formhead=.ReadText(datastart-1) '读取表单头部内容
End with
'2.1获取上传的文件名称filename
fullname=fRegExpSgl(formhead,true,true,true,"[\s\S]*filename\=""(.*?)""[\s\S]*","$1")
fname=Split(fullname,"\")
filename=fname(UBound(fname)) '获取到文件名
Set fso = Server.CreateObject("Scripting.File"&"System"&"Object") '判断是否与本地盘文件重名,否则重命名 XXX(1).xxx
If fso.FileExists(savepath&filename) Then
For i=1 To 999
Fxname=Split(filename,".")
Fn=Left(filename,InstrRev(filename,".")-1)
Fnx=fxname(UBound(fxname))
If Not fso.FileExists(SavePath&Fn&"("&i&")."&Fnx) Then
filename=Fn&"("&i&")."&Fnx
Exit For
End If
Next
End If
'3.从stm二进制流文件中获取有效信息 及 保存文件
Set formstrm=createOBject("adodb.str"&"eam")
with formstrm
.type=1 ' 二进制模式
.mode=3
.open
strm.position = datastart ' 指定 stm 对象的起始位置, 以变量 bStart 的值为起始位置
strm.copyTo formstrm,dataend ' 拷贝 stm 二进制流至 fromStm 对象, 长度为 bEnd 变量的长度
.saveTofile (savepath&filename),2 ' 将信息保存到文件, 如果存在相同名称, 则覆盖
.close
end with
Set strm=Nothing
Set formstrm=Nothing
response.redirect "?upload=ok&name="&filename
End Sub function fRegExpSgl(str,glb,igc,mtl,pt,rpt)
dim re
set re=new RegExp
re.global=glb
re.ignoreCase=igc
re.multiline=mtl
re.pattern=pt
fRegExpSgl=re.replace(str,rpt)
set re=nothing
end function
%>
<html>
<body leftmargin="0" topmargin="0">
<form action="" method="post" name="form1" enctype="multipart/form-data">
<!-- enctype="multipart/form-data"不能省略,以保证提交过来的信息的正确性,可以远程提交信息 -->
<input name="FileName" type="FILE" class="tx1" size="40" style="height:22">
<input type="submit" name="Submit" value=" 上传 " style="color:red;height:22;width:70">
</form>
<%
'''测试语句:输出相关图片
If request("upload")="ok" Then
response.write "<img src=""images/"&request("name")&""">"
End If
%>
</body>
</html>
</body>
</html>
热心网友
时间:2022-04-22 11:29
saveannounce_upload.asp 上传页
------------------------------------
<html>
<head>
<style type="text/css">
body {font-size:9pt;}
input {font-size:9pt;}
</style>
<title>文件上传</title>
</head>
<body>
<form name="form" method="post" action="saveannouce_upfile.asp" enctype="multipart/form-data" >
文件
<input type="file" name="file1" size=10>
<input type="submit" name="Submit" value="上传">
</form>
</body>
</html>
------------------------------------
saveannouce_upfile.asp 保存文件到服务器
------------------------------------
<!--#include FILE="upload.inc"-->
<html>
<head>
<title>文件上传</title>
</head>
<body>
<%
dim upload,file,formName,formPath
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&"/"
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 "<font size=2>请先选择你要上传的文件 [ <a href=# onclick=history.go(-1)>重新上传</a> ]</font>"
response.end
end if
if file.filesize>500*1000 then '设置上传文件大小为500K
response.write "<font size=2>文件大小超过了* 500K [ <a href=# onclick=history.go(-1)>重新上传</a> ]</font>"
response.end
end if
if file.FileSize>0 then ''如果 FileSize > 0 说明有文件数据
file.SaveAs Server.mappath("updata\"&file.FileName) ''保存文件
end if
set file=nothing
next
set upload=nothing
response.write "<font size=2>文件上传成功 [ <a href=# onclick=history.go(-1)>继续上传</a> ]</font>"
%>
</body>
</html>
------------------------------------
upload.inc 建立upload对象
------------------------------------
<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>
希望对楼主有帮助。