Re: Newbie question: listing files

[Erik Weber]

The way to do this is to create a link to an action that reads the bytes 
in from the file and writes the bytes out to the ServletResponse's 
OutputStream (unless the files are all, for example, text or HTML files 
that you can place directly within the server's public document root). 
So you are not linking to the file, but to an Action that knows how to 
find the file (via a parameter just like you are doing). Perhaps you 
already have thought of this -- I'm just making sure. If not, please 
search the list archives for "serving binary content" and/or "download 
action". This question comes up a lot and you will find lots of useful 
tips on serving binary files.

As far as the error, I'm not sure, but do you have a global forward that 
is named "viewfile" in your struts-config.xml? Because that's what the 
forward attribute to html:link specifies, and that's where it will look 
for the actual URI . . .

Brij Naald wrote:
Thanks for your answer. If the approach i'm trying now doesn't work, I 
certainly going to try that one. But it almost works. The action gets 
called, and it puts the right names in the request.

What I want to do now is to put in the JSP-page links to a page 
(viewfile) which shows the file in question. So I need links off the 
form {base}/viewfile?name=filename. Therefore I should use the
<html:link> tag:

When I try the code below I get an exception:
javax.servlet.ServletException: Cannot create rewrite URL: 
java.net.MalformedURLException: Cannot retrieve ActionForward named 
viewfile?file=<%= files[i]%>

What can I do about it? (note that the rest of the code works well; if 
I remove the <html:link> tags, i get a listing of the filenames.

<%
String[] files = (String[])request.getAttribute("filenames");
for (int i = 0; i < files.length; i++){
%>
<html:link forward="viewfile?file=<%= files[i]%>"><%= 
files[i]%></html:link>
<%
}
%>

Thanks for the hellp!
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