Vida Una Homepage
Forum Home Forum Home > Programación > Códigos ASP y ASP.NET
  New Posts New Posts RSS Feed - Como hacer upload de ficheros al servidor
  FAQ FAQ  Forum Search   Events   Register Register  Login Login


Como hacer upload de ficheros al servidor

 Post Reply Post Reply
Author
Message
Programador View Drop Down
Expert@
Expert@
Avatar

Joined: 09 Mayo 2009
Location: San Pedro Alc.
Status: Offline
Points: 54
Post Options Post Options   Thanks (0) Thanks(0)   Quote Programador Quote  Post ReplyReply Direct Link To This Post Topic: Como hacer upload de ficheros al servidor
    Posted: 09 Mayo 2009 at 4:31pm

Este ejemplo nos muestra como subir un fichero desde el disco duro del cliente a un directorio de nuestro servidor; consta de un solo modulo que realiza las funciones de selección del fichero para upload (case 1) y las de la transmisión propiamente dicha (case 2)

saveany.asp

<%@LANGUAGE="VBSCRIPT"%>
<%response.buffer=true
Func = Request("Func")
if isempty(Func) Then
Func = 1
End if
Select Case Func
Case 1
%>

<table width="360" border="0" align="center">
<tr>
<td>
<div align="center">Selecciona una imagen para subir. </div>
</td>
</tr>
</table>
<FORM ENCTYPE="multipart/form-data" ACTION="saveany.asp?func=2" METHOD=POST id=form1 name=form1>
<TABLE align="center">
<TR>
<TD>&nbsp;</TD>
</TR>
<TR>
<TD><font color="#330066" size="2">Pulsa en el botón examinar y elige el archivo
de tu ordenador.<BR>
<BR>
</font></TD>
</TR>
<TR>
<TD><font color="#330066" size="2">Luego pulsa el botón subir.<BR>
<BR>
</font></TD>
</TR>
<TR>
<TD><STRONG><font color="#330066" size="2">Nombre del archivo...</font></STRONG></TD>
</TR>
<TR>
<TD> <font size="2">
<INPUT NAME=File1 SIZE=30 TYPE=file>
<BR>
</font></TD>
</TR>
<TR>
<TD align=left>
<INPUT type="submit" value="Subir">
<BR>
<BR>
</TD>
</TR>
<TR>
<TD><font color="#330066" size="2">NOTA: Espera, recibirás una notificación
cuando el archivo haya sido subido</font><font size="2">.<BR>
<BR>
</font></TD>
</TR>
</TABLE>
<%
Case 2
ForWriting = 2
adLongVarChar = 201
lngNumberUploaded = 0

'Get binary data from form
noBytes = Request.TotalBytes
binData = Request.BinaryRead (noBytes)
'convery the binary data to a string
Set RST = CreateObject("ADODB.Recordset")
LenBinary = LenB(binData)

if LenBinary > 0 Then
RST.Fields.Append "myBinary", adLongVarChar, LenBinary
RST.Open
RST.AddNew
RST("myBinary").AppendChunk BinData
RST.Update
strDataWhole = RST("myBinary")
End if
'Creates a raw data file for with all da
' ta sent. Uncomment for debuging.
'Set fso = CreateObject("Scripting.FileSystemObject")
'Set f = fso.OpenTextFile(server.mappath(".") & "\raw.txt", ForWriting, True)
'f.Write strDataWhole
'set f = nothing
'set fso = nothing
'get the boundry indicator
strBoundry = Request.ServerVariables ("HTTP_CONTENT_TYPE")
lngBoundryPos = instr(1,strBoundry,"boundary=") + 8
strBoundry = "--" & right(strBoundry,len(strBoundry)-lngBoundryPos)
'Get first file boundry positions.
lngCurrentBegin = instr(1,strDataWhole,strBoundry)
lngCurrentEnd = instr(lngCurrentBegin + 1,strDataWhole,strBoundry) - 1
Do While lngCurrentEnd > 0
'Get the data between current boundry an
' d remove it from the whole.
strData = mid(strDataWhole,lngCurrentBegin, lngCurrentEnd - lngCurrentBegin)
strDataWhole = replace(strDataWhole,strData,"")

'Get the full path of the current file.
lngBeginFileName = instr(1,strdata,"filename=") + 10
lngEndFileName = instr(lngBeginFileName,strData,chr(34))
'Make sure they selected at least one fi
' le.
if lngBeginFileName = lngEndFileName and lngNumberUploaded = 0 Then

Response.Write "<H2> Ha ocurrido el siguiente error.</H2>"
Response.Write "Debes elegir un archivo para subir"
Response.Write "<BR><BR>Pulsa el botón volver, realiza la corrección."
Response.Write "<BR><BR><INPUT type='button' onclick='history.go(-1)' value='<< Volver' id='button'1 name='button'1>"
Response.End
End if
'There could be one or more empty file b
' oxes.
if lngBeginFileName <> lngEndFileName Then
strFilename = mid(strData,lngBeginFileName,lngEndFileName - lngBeginFileName)
'Creates a raw data file with data betwe
' en current boundrys. Uncomment for debug
' ing.
'Set fso = CreateObject("Scripting.FileSystemObject")
'Set f = fso.OpenTextFile(server.mappath(".") & "\raw_" & lngNumberUploaded & ".txt", ForWriting, True)
'f.Write strData
'set f = nothing
'set fso = nothing

'Loose the path information and keep jus
' t the file name.
tmpLng = instr(1,strFilename,"\")
Do While tmpLng > 0
PrevPos = tmpLng
tmpLng = instr(PrevPos + 1,strFilename,"\")
Loop

FileName = right(strFilename,len(strFileName) - PrevPos)

'Get the begining position of the file d
' ata sent.
'if the file type is registered with the
' browser then there will be a Content-Typ
' e
lngCT = instr(1,strData,"Content-Type:")

if lngCT > 0 Then
lngBeginPos = instr(lngCT,strData,chr(13) & chr(10)) + 4
Else
lngBeginPos = lngEndFileName
End if
'Get the ending position of the file dat
' a sent.
lngEndPos = len(strData)

'Calculate the file size.
lngDataLenth = lngEndPos - lngBeginPos
'Get the file data
strFileData = mid(strData,lngBeginPos,lngDataLenth)
'Create the file.
Set fso = CreateObject("Scripting.FileSystemObject")
Set f = fso.OpenTextFile(server.mappath("..") & "\TuDirectorio\" &_
 FileName, ForWriting, True)
f.Write strFileData
Set f = nothing
Set fso = nothing

lngNumberUploaded = lngNumberUploaded + 1

End if

'Get then next boundry postitions if any
' .
lngCurrentBegin = instr(1,strDataWhole,strBoundry)
lngCurrentEnd = instr(lngCurrentBegin + 1,strDataWhole,strBoundry) - 1
loop


Response.Write "Archivo subido"
Response.Write lngNumberUploaded & " archivo ya está en el servidor.<BR>"
Response.Write "<BR><BR><INPUT type='button' onclick='document.location=" & chr(34) & "saveany.asp" & chr(34) & "' value='<< Volver' id='button'1 name='button'1>"
End Select
%>
</BODY>
</HTML>

Back to Top
Sponsored Links


Back to Top
 Post Reply Post Reply

Forum Jump Forum Permissions View Drop Down



This page was generated in 0.033 seconds.