On Wed, 2 Oct 2002, Jens Viebig wrote:
> Date: Wed, 2 Oct 2002 18:02:47 +0200
> From: Jens Viebig <[EMAIL PROTECTED]>
> Reply-To: Struts Developers List <[EMAIL PROTECTED]>
> To: [EMAIL PROTECTED]
> Subject: Faster View Components...
>
> Struts+JSP+Struts Taglibs are sometimes so terrible slow, i think even perl
> would be faster...The Action Classes are as fast as i like it but jsp-Stuff
> is terrible
> I have some complex pages with big tables (logic:iterate) and a lot of
> <bean:write> and <html:link> tags.
> Sometimes it takes longer than 10 seconds until the page starts loading
> Should i kick out the taglibs and do some scriptlet stuff ?
> Are there some faster alternatives to jsp to build the view ?
>
This is probably more a user-list question, but ...
Two things to be sure you are aware of:
* JSP pages (whether you use custom tags or not) are converted
into servlets and then compiled the first time you use them.
Be sure you are requesting the same page more than once to see
what response time your user will normally encounter. (If you
still see 10 seconds per page there, it is *much* more likely
to be caused by your database lookups than anything in the
view tier).
* The performance of JSP pages with lots of custom tags is *very*
dependent upon the quality of the code generated by the JSP page
compiler for your server. You don't say which one you are using,
but if it's Tomcat, check out the difference between running on
Tomcat 4.0.x and 4.1.x (which uses a completely rewritten page
compiler). Differences in the 600%-800% range (yes, that's six
to eight times faster) have been noticed in some cases, as a result
of the focus on optimization that the new compiler does.
For alternatives, you can use any view tier technology that can be
accessed via RequestDispatcher.forward() -- for example, some folks use
Velocity. But you'll obviously lose the functionality performed by the
JSP custom tags if you go this way.
> Greets
> Jens Viebig
Craig
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