ive heard that too
TC supports Cache-Control, Expires and Last-Modified for cache control
// Required Cache Control Headers
String maxage = "86400"; // One day in Seconds
response.setHeader("Cache-Control", "max-age="+ maxage);
long relExpiresInMillis = System.currentTimeMillis() + (1000 *
Long.parseLong(maxage));
response.setHeader("Expires", getGMTTimeString(relExpiresInMillis));
response.setHeader("Last-Modified", getGMTTimeString(file.lastModified()));but
Apache seems to implement caching primarily thru the expires module (except
what the browser caches)
http://httpd.apache.org/docs/2.0/mod/mod_expires.html
http://www.websiteoptimization.com/speed/tweak/cache
<Directory "/home/website/public_html">
Options FollowSymLinks MultiViews
AllowOverride All
Order allow,deny
Allow from all
ExpiresDefault A300
<FilesMatch "\.html$">
Expires A86400
</FilesMatch>
<FilesMatch "\.(gif|jpg|png|js|css)$">
Expires A2592000
</FilesMatch>
</Directory>
300 second is default caching for all files...1 day caching for html files...30
days for pics and js
the question i have is what happens with bascially static JS files (such as
Dojo)
typical Apache Server happily downloads untouched static JS files for each and
every access (except for FilesMatch excps)
i think component plugins such as Struts-dojo plugin a better option to cache
static JS files on the TC side
thanks,
Martin
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> Date: Tue, 23 Jun 2009 09:29:11 -0700
> Subject: Re: Struts2 static content
> From: [email protected]
> To: [email protected]
>
> this sounds like a good topic for Myth Buster
>
> /geek_out
>
> On Tue, Jun 23, 2009 at 9:25 AM, Wes Wannemacher<[email protected]> wrote:
> > On Tue, Jun 23, 2009 at 12:11 PM, Wes Wannemacher<[email protected]> wrote:
> >> On Tue, Jun 23, 2009 at 11:45 AM, Musachy Barroso<[email protected]> wrote:
> >>> Struts adds overhead for serving static content. Not that I have ever
> >>> done any benchmarking on it, but I know that at my company(large
> >>> online retailer), just suggesting to serve static content thru tomcat
> >>> instead of apache is a big offense.
> >>>
> >>> musachy
> >>>
> >>
> >> I had a similar experience at a large online content provider. At the
> >> time, we were bouncing back and forth between tomcat and resin. We
> >> used mod_jk and mod_caucho for integration between httpd and the app
> >> servers. I hate it when rules exist, but there is no data to backup
> >> the rule's existence.
> >>
> >
> > To follow that up, check out Chapter 4 of Tomcat: The Definitive
> > Guide, the author goes into detail load testing Tomcat and HTTPD -
> >
> > http://oreilly.com/catalog/9780596101060/chapter/index.html
> >
> > The author does a good job of covering the tools, which I think is
> > important since everyone should test for themselves.
> >
> > -Wes
> >
> > --
> > Wes Wannemacher
> > Author - Struts 2 In Practice
> > Includes coverage of Struts 2.1, Spring, JPA, JQuery, Sitemesh and more
> > http://www.manning.com/wannemacher
> >
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> >
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