Hello,
I've another little problem regarding download.
I use a RawScreen (Download.vm) and my files are stored in a MySql DB,
in a BLOB field.
It does work when you only display the file, the problem raises when you
try to save this file.
hereafter how i call that page:
<a
href="$link.setPage("Download.vm").addQueryData("attachid",
"$Attachment.getId()")">$Attachment.getFilename()</A>
and here how is et the headers:
resp.setContentType(_attach.getContenttype());
resp.setContentLength(_attach.getContent().length);
resp.setHeader("Content-Disposition", "attachment");
resp.setHeader("filename", _attach.getFilename());
The name of the file becomes "Download", the realname is lost.
How is it possible to keep the name of the file.
Peter Goode wrote:
>John,
>Gotcha, I was trying to assign it as OutputStream..., presumably that was breaking
>it (?)
>
>Anyway, fixed now following your help... it's amazing how useful it is to be told
>what you've already read (manual blindness sets in after a while!)
>
>
>Is there a better file upload/download example than the TDK inbuilt app (newapp), as
>that doesn't have any working download at present,
>despite the upload. The attached code works ok.
>
>
>Thank you for your help.
>
>
>Peter
>
>John McNally wrote:
>
>>HttpServletResponse inherits the getOutputStream() method from
>>ServletResponse.
>>
>>Peter Goode wrote:
>>
>>>Hi,
>>>
>>>I've been trying to get an uploaded file to be sent back...
>>>
>>>PROBLEM:
>>>I can't get binary access to the output stream (from within subclass of
>>>RawScreen).
>>>
>>>I'm using the code below which is reproduced around various Turbine
>>>sites&mailing lists.
>>>However, .getOutputStream() doesn't actually exist, according to all
>>>documentation, and indeed
>>>it fails to work (although I've not got any debugging, just
>>>comment/uncomment and see what lives !)
>>>
>>>Is anything wrong with this..? (well yes) and why does everyone claim to
>>>use .getOutputStream() when it doesn't
>>>exist... ?
>>>
>>>If it can be made to work then the Tutorial should be updated, because
>>>there is no working download file
>>>in there at present.
>>>
>>>Cheers for your help
>>>
>>>Peter
>>>
>>>/*------/// code starts ///---------*/
>>>
>>>public class Download extends RawScreen
>>>{
>>> public void doOutput(RunData data) throws Exception
>>> {
>>> if (!isAuthorized(data))
>>> {
>>> // do something to tell the user they don't have permission
>>> }
>>> else
>>> {
>>> data.declareDirectResponse();
>>> FileInputStream file_tosend = new
>>>FileInputStream(TurbineServlet.getRealPath("/uploaded.file"));
>>> BufferedInputStream buffer_data = new
>>>BufferedInputStream(file_tosend);
>>> // OK to here
>>>
>>> // these 3 would kill it
>>> //OutputStream stream_out =
>>>data.getResponse().getOutputStream();
>>> //BufferedOutputStream buffer_out = new
>>>BufferedOutputStream(stream_out);
>>> //buffer_out.write(buffer_data.read());
>>>
>>> // *** *** this one kills it, when enabled *** ***
>>> //OutputStream a = data.getResponse().getOutputStream();
>>>
>>> // Will work and do all this, provided the
>>>.getOutputStream() call isn't made YYY
>>> // Documentation for RunData.getResponse() -->
>>>javax.servlet.http.HttpServletResponse
>>> // shows that there is no .getOutputStream() method... what
>>>should be going on !?
>>> String str = "test 9D";
>>> PrintWriter out = data.getOut();
>>> out.println(str);
>>> out.flush();
>>> file_tosend.close();
>>> }
>>> }
>>>
>>> public String getContentType(RunData data)
>>> {
>>> return "text/html";
>>> //return "image/jpeg";
>>> }
>>>
>>> protected boolean isAuthorized(RunData data)
>>> {
>>> // do the security check here. Get whatever info you need
>>> // about the user from RunData
>>> return true;
>>> }
>>>}
>>>/*------/// ends ///---------*/
>>>
>>>--
>>>To unsubscribe, e-mail: <mailto:[EMAIL PROTECTED]>
>>>For additional commands, e-mail: <mailto:[EMAIL PROTECTED]>
>>>
>>--
>>To unsubscribe, e-mail: <mailto:[EMAIL PROTECTED]>
>>For additional commands, e-mail: <mailto:[EMAIL PROTECTED]>
>>
>>
>>------------------------------------------------------------------------
>>
>>package org.mrexcessive.peter1.modules.screens;
>>
>>/* ====================================================================
>> * The Apache Software License, Version 1.1
>> *
>> * Copyright (c) 2001 The Apache Software Foundation. All rights
>> * reserved.
>> *
>> * Redistribution and use in source and binary forms, with or without
>> * modification, are permitted provided that the following conditions
>> * are met:
>> *
>> * 1. Redistributions of source code must retain the above copyright
>> * notice, this list of conditions and the following disclaimer.
>> *
>> * 2. Redistributions in binary form must reproduce the above copyright
>> * notice, this list of conditions and the following disclaimer in
>> * the documentation and/or other materials provided with the
>> * distribution.
>> *
>> * 3. The end-user documentation included with the redistribution,
>> * if any, must include the following acknowledgment:
>> * "This product includes software developed by the
>> * Apache Software Foundation (http://www.apache.org/)."
>> * Alternately, this acknowledgment may appear in the software itself,
>> * if and wherever such third-party acknowledgments normally appear.
>> *
>> * 4. The names "Apache" and "Apache Software Foundation" and
>> * "Apache Turbine" must not be used to endorse or promote products
>> * derived from this software without prior written permission. For
>> * written permission, please contact [EMAIL PROTECTED]
>> *
>> * 5. Products derived from this software may not be called "Apache",
>> * "Apache Turbine", nor may "Apache" appear in their name, without
>> * prior written permission of the Apache Software Foundation.
>> *
>> * THIS SOFTWARE IS PROVIDED ``AS IS'' AND ANY EXPRESSED OR IMPLIED
>> * WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
>> * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
>> * DISCLAIMED. IN NO EVENT SHALL THE APACHE SOFTWARE FOUNDATION OR
>> * ITS CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
>> * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
>> * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF
>> * USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND
>> * ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,
>> * OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT
>> * OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
>> * SUCH DAMAGE.
>> * ====================================================================
>> *
>> * This software consists of voluntary contributions made by many
>> * individuals on behalf of the Apache Software Foundation. For more
>> * information on the Apache Software Foundation, please see
>> * <http://www.apache.org/>.
>> */
>>
>>import java.util.Vector;
>>import java.io.FileInputStream;
>>import java.io.BufferedInputStream;
>>import java.io.BufferedOutputStream;
>>import java.io.OutputStream;
>>import java.io.PrintWriter;
>>import javax.servlet.ServletOutputStream;
>>
>>import org.apache.turbine.modules.screens.RawScreen;
>>import org.apache.turbine.util.RunData;
>>
>>import org.apache.turbine.util.db.Criteria;
>>import org.mrexcessive.peter1.om.RdfPeer;
>>import org.apache.turbine.util.upload.FileItem;
>>import org.apache.turbine.services.servlet.TurbineServlet;
>>
>>import org.apache.velocity.context.Context;
>>
>>/**
>>Send back the previously uploaded file, uses RawScreen via Download.vm (?possibly
>wrong?)
>> */
>>public class Download extends RawScreen
>>{
>> public void doOutput(RunData data) throws Exception
>> {
>> if (!isAuthorized(data))
>> {
>> // do something to tell the user they don't have permission
>> }
>> else
>> {
>> data.declareDirectResponse();
>> FileInputStream file_tosend = new
>FileInputStream(TurbineServlet.getRealPath("/uploaded.file"));
>> ServletOutputStream op = data.getResponse().getOutputStream();
>> int bufsize = 16384;
>> byte [] buf = new byte[bufsize];
>> while (file_tosend.available() > 0) { // belt & braces ? why
>> int got = file_tosend.read(buf,0,bufsize);
>> if (got != -1) {
>> op.write(buf,0,got);
>> }
>> else {
>> break;
>> }
>> }
>> op.flush();
>> }
>> }
>>
>> public String getContentType(RunData data)
>> {
>> return "image/jpeg";
>> }
>>
>> protected boolean isAuthorized(RunData data)
>> {
>> // do the security check here. Get whatever info you need
>> // about the user from RunData
>> return true;
>> }
>>}
>>
>>
>>------------------------------------------------------------------------
>>
>>--
>>To unsubscribe, e-mail: <mailto:[EMAIL PROTECTED]>
>>For additional commands, e-mail: <mailto:[EMAIL PROTECTED]>
>>
--
--
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