My application has form containing a table with hyperlinks in one column.
When a user clicks on one, a request is made to the server passing in the ID of the
chosen file (Microsoft Word) to be downloaded.
The file is then downloaded to the user's browser (Internet Explorer - V5) but I
cannot find how to influence the caption/contents of the various dialogue boxes, even
though I tried a method suggested in a posting to this list dated 2001.
The essential logic in the DownLoadAction.java file is the following :-
OutputStream os = null;
HttpSession session = request.getSession();
ComponentManager cm =
(ComponentManager)session.getAttribute(CitadelKeys.COMPONENT_MANAGER);
IDownloadBD IDownloadBD = cm.getDownloadBD(session);
BigInteger rgmtMfst = new BigInteger(request.getParameter("fileID"));
response.setContentType("application/msword");
response.setHeader("Content-Disposition", "attachment;
filename=Portfolio_Document.doc");
response.addHeader("Content-Description", "Portfolio Report Download");
String AcceptEncoding = request.getHeader("Accept-Encoding");
if ((AcceptEncoding != null) && (AcceptEncoding.indexOf("gzip") != -1))
{
os = new GZIPOutputStream(response.getOutputStream());
if (response.containsHeader("Content-Encoding")) {
response.setHeader("Content-Encoding", "gzip"); }
else { response.addHeader("Content-Encoding", "gzip"); }
}
else { os = response.getOutputStream(); }
//download the file via the BD...
IDownloadBD.downloadFile(os, rgmtMfst);
ActionMessages webClientMessages = new ActionMessages();
webClientMessages.add("portfolio", new
ActionMessage("portfolio.report.download.completed"));
saveMessages(request, webClientMessages);
os.flush();
os.close();
But the target filename suggested by the Content-Disposition header gets replaced by
download.doc somewhere and the Content-Description header does nothing (as far as I
can tell).
I have tried response.setContentType("application/x-download"); and the only
difference is that the suggested filename changes to "download" instead of being
"download.doc"
On the Content-Disposition header, in addition to the one shown above, I have tried
others :-
"attachment; filename=\"C:\\Portfolio_Document.doc\";"
"attachment; filename=\"Portfolio_Document.doc\";"
"attachment; filename=\"Portfolio_Document.doc\""
and none of them have any effect either.
Searching the web reveals Internet Explorer and Opera as known culprits for bad
compliance with the relevant Internet protocols, so has anyone found a way to :-
suggest a target filename
create meaningful dialogue captions
When the Client browser is Internet Explorer V5 ?
Is there some "helpful" facility in IE5 that I need to turn off (or on) ?
Is my code inherently wrong ?
All solutions gratefully received ...
Regards.
Mike
Mike Parfitt
Developer
JMH Demica Ltd
Crowne House,
56-58 Southwark Street
London
SE1 1UN
Direct: +44 (0) 20 7450 2539
Switchboard: +44 (0) 20 7450 2500
Fax: +44 (0) 20 7407 5825
Web: http://www.jmhdemica.com
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