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最近经常有人问到这类问题,在此转贴一下,内容:
1。数据库表结构(Access)：
UserID:Text(保存上传文件的用户ID)
FileContentType:Text(用来保存上传文件的类型，eg:"Application/msword"，主要用来使用户能正确下载此文件）
FileContent:OLE Object（保存文件数据）
2。html文件
muploadfile.htm
"这里用来表示开始文件数据上传
File to send:
"这里用来表示文件数据结束
3。asp文件
muploadfile.asp
127 Then
ccc =ccc Chr(AscW(MidB(binstr,i+1,1) clow))
skipflag=1
Else
ccc = ccc Chr(AscB(clow))
End If
Else
skipflag=0
End If
Next
End If
bin2str = ccc
End Function
varByteCount = Request.TotalBytes
bnCRLF = chrB( 13 ) chrB( 10 )
binHTTPHeader=Request.BinaryRead(varByteCount)
Divider = LEFTB( binHTTPHeader, INSTRB( binHTTPHeader, bnCRLF ) - 1 )
"开始读非文件域的数据
Do while lenB(binHTTPHeader)>46
binHeaderData = LeftB(binHTTPHeader, INSTRB( binHTTPHeader, bnCRLF bnCRLF )-1)
strHeaderData=bin2str(binHeaderData)
lngFieldNameStart=Instr(strHeaderData,"name=" chr(34))+Len("name=" chr(34))
lngFieldNameEnd=Instr(lngFieldNameStart,strHeaderData,chr(34))
strFieldName=Mid(strHeaderData,lngFieldNameStart,lngFieldNameEnd-lngFieldNameStart)
strFieldName=Trim(strFieldName)
strFieldName=Replace(strFieldName,vbcrlf,vbnullstring)
"判断文件数据时候开始
If strComp(strFieldName,"FileUploadStart",1)=0 Then
binHTTPHeader=MIDB(binHTTPHeader,INSTRB( DataStart + 1, binHTTPHeader, divider ))
exit do
End if
DataStart = INSTRB( binHTTPHeader, bnCRLF bnCRLF ) + 4
DataEnd = INSTRB( DataStart + 1, binHTTPHeader, divider ) - DataStart
binFieldValue=MIDB( binHTTPHeader, DataStart, DataEnd )
strFieldValue=bin2str(binFieldValue)
strFieldValue=Trim(strFieldValue)
strFieldValue=Replace(strFieldValue,vbcrlf,vbnullstring)
"非文件上传域变量赋值
execute strFieldName "=""" strFieldValue """"
binHTTPHeader=MIDB(binHTTPHeader,INSTRB( DataStart + 1, binHTTPHeader, divider ))
loop
"开始处理文件数据
Do while lenB(binHTTPHeader)>46
binHeaderData = LeftB(binHTTPHeader, INSTRB( binHTTPHeader, bnCRLF bnCRLF )-1)
strHeaderData=bin2str(binHeaderData)
"读取上传文件的Content-Type
lngFileContentTypeStart=Instr(strHeaderData,"Content-Type:")+Len("Content-Type:")
strFileContentType=Trim(Mid(strHeaderData,lngFileContentTypeStart))
strFileContentType=Replace(strFileContentType,vbCRLF,vbNullString)
"读取上传的文件名
lngFileNameStart=Instr(strHeaderData,"filename=" chr(34))+Len("filename=" chr(34))
lngFileNameEnd=Instr(lngFileNameStart,strHeaderData,chr(34))
strFileName=Mid(strHeaderData,lngFileNameStart,lngFileNameEnd-lngFileNameStart)
strFileName=Trim(strFileName)
strFileName=Replace(strFileName,vbCRLF,vbNullString)
"读取上传文件数据
DataStart = INSTRB( binHTTPHeader, bnCRLF bnCRLF ) + 4
DataEnd = INSTRB( DataStart + 1, binHTTPHeader, divider ) - DataStart
If strFileName"" Then
binFieldValue=MIDB( binHTTPHeader, DataStart, DataEnd )
"将上传的文件写入数据库
set conn = Server.CreateObject("ADODB.Connection")
conn.Open "DSN=abc"
SQL="select * from User_File"
set rs=server.CreateObject("ADODB.Recordset")
rs.Open sql,conn,3,3
rs.addnew
rs("UserID")=UserID
rs("FileContentType")=strFileContentType
rs("FileContent").AppendChunk binFieldValue
rs.update
rs.close
set rs=Nothing
conn.Close
set conn=Nothing
End if
binHTTPHeader=MIDB(binHTTPHeader,INSTRB( DataStart + 1, binHTTPHeader, divider ))
loop
%>
4。下载用户上传的文件
lngPictSize Then Exit Do
Loop
rs.close
set rs=Nothing
conn.close
set conn=nothing
%>
就是这些了，希望此方法对大家能有所帮助。：）
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