请问谁能详细描述一下利用ADO的Stream SaveToFile上传文件的过程及原理!

Bullforg 2002-05-10 01:44:18
请举例上传两个文件到服务器的目录中的例子!请附注释!
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waynebaby 2002-05-16
流程当然是要自己理解的
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julyclyde 2002-05-14
帖子列表右上就有专题。
==============
这次没有得到MSDN
争取下次MVP吧。
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saucer 2002-05-14
参考
http://www.15seconds.com/Issue/010522.htm
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Bullforg 2002-05-14
Where???
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julyclyde 2002-05-14
有专题不看
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janhance 2002-05-14
funboy88(司令) I 服了 YOU!
贴个链接不行吗?这个你真的懂吗?晕倒!……

这个问题我也想知道,请高手帮帮忙啊
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ChinaOk 2002-05-14
老大。你先要多http协议清楚,才可能懂得。
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julyclyde 2002-05-10
1MB是可以传的。
HTTP本身不是为了上传而设计的,再加上MODEM和ADSL都是下快上慢,更容易使HTTP操作出错。建议使用FTP
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ChinaOk 2002-05-10
http://lostinet.d2g.com
这个东西你传大的试试。有可能可以。不过如果太大。比如大于3mb
那就不能用了。无组件根本就不能胜任这个活。
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Bullforg 2002-05-10
大哥,代码我有,关键是自己要消化呀!
我现在对STREAM上传文件的流程原理很模糊
而且STREAM应该是可以上传任何文件的!
楼上兄弟的代码,我有,里面有一个问题
就是上传速度其慢!普通的JPG,GIF,HTM小点还可以
但是一大IE就没反映了,而且我还需要上传1M左右的RM或者AVI文件呀
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funboy88 2002-05-10
'上传文件
<html>
<head>
<title>Untitled Document</title>
<meta http-equiv="Content-Type" content="text/html; charset=gb2312">
<style type="text/css">
<!--
td { font-size: 9pt}
a { color: #000000; text-decoration: none}
a:hover { text-decoration: underline}
.tx { height: 16px; width: 30px; border-color: black black #000000; border-top-width: 0px; border-right-width: 0px; border-bottom-width: 1px; border-left-width: 0px; font-size: 9pt; background-color: #eeeeee; color: #0000FF}
.bt { font-size: 9pt; border-top-width: 0px; border-right-width: 0px; border-bottom-width: 0px; border-left-width: 0px; height: 16px; width: 80px; background-color: #eeeeee; cursor: hand}
.tx1 { height: 20px; width: 30px; font-size: 9pt; border: 1px solid; border-color: black black #000000; color: #0000FF}
-->
</style>
</head>

<body bgcolor="#FFFFFF" text="#000000">
<form name="form1" method="post" action="upfile.asp" enctype="multipart/form-data" >
<table border="1" cellspacing="0" cellpadding="0" bordercolorlight="#000000" bordercolordark="#CCCCCC" width="91" height="23">
<tr>
<td align="left" valign="middle" height="18" width="18"> </td>
<td bgcolor="#CCCCCC" align="left" valign="middle" height="18" width="67"> 文件上传</td>
</tr>
</table>
<br>
<input type="hidden" name="act" value="upload">
<br>
<table width="71%" border="1" cellspacing="0" cellpadding="5" align="center" bordercolordark="#CCCCCC" bordercolorlight="#000000">
<tr bgcolor="#CCCCCC">
<td height="22" align="left" valign="middle" bgcolor="#CCCCCC"> 化境编程界文件上传</td>
</tr>
<tr align="left" valign="middle" bgcolor="#eeeeee">
<td bgcolor="#eeeeee" height="92">
<script language="javascript">
function setid()
{
str='<br>';
if(!window.form1.upcount.value)
window.form1.upcount.value=1;
for(i=1;i<=window.form1.upcount.value;i++)
str+='文件'+i+':<input type="file" name="file'+i+'" style="width:400" class="tx1"><br><br>';
window.upid.innerHTML=str+'<br>';
}
</script>
<li> 需要上传的个数
<input type="text" name="upcount" class="tx" value="1">
<input type="button" name="Button" class="bt" onclick="setid();" value="· 设定 ·">
</li>
<br>
<br>
<li>上传到:
<input type="text" name="filepath" class="tx" style="width:350" value="">
</li>
</td>
</tr>
<tr align="center" valign="middle">
<td align="left" id="upid" height="122"> 文件1:
<input type="file" name="file1" style="width:400" class="tx1" value="">
</td>
</tr>
<tr align="center" valign="middle" bgcolor="#eeeeee">
<td bgcolor="#eeeeee" height="24">
<input type="submit" name="Submit" value="· 提交 ·" class="bt">
<input type="reset" name="Submit2" value="· 重执 ·" class="bt">
</td>
</tr>
</table>
</form>
</body>
</html>


<SCRIPT RUNAT=SERVER LANGUAGE=VBSCRIPT>

'''''''''''''''''''''''''''''''''''''''''''''''''
'
'请保留此信息: 稻香老农制作 http://www.5xSoft.com/
'
'''''''''''''''''''''''''''''''''''''''''''''''''

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="化境编程界HTTP上传程序 Version 1.0"
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>
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Bullforg 2002-05-10
我手上有不少这样代码
但是我想要掌握这种方法,所以主要想知道如何做到上传一个文件到服务器
目录下的,原理呀还有代码注解,比如我现在有10个FILE,如何上传呢!
回复
cmsoft 2002-05-10
给一个地址:www.5xsoft.com
写成一个类就行了
回复
ChinaOk 2002-05-10
说明:
http://www.csdn.net/Expert/FAQ/FAQ_Index.asp?id=119



上传组件[不过这个和上面的说明不太一样,不过很好用。]
http://lostinet.d2g.com

http://www.chinaok.net/down/upload.rar

这个也可以。写成了类。
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