Jordi Rubio Moreno wrote:
> Is JSP taglib too slow and not recommended solution for production
portals?
Hi Jordi, I'm impressed you made the effort to compare Freemarker vs Jsp
performance. I've re-posted your question at the top of this email in
the hope that it gains the attention of some of the more experienced
developers.
In your test did you ensure your comparison doesn't include the first
time the JSP is retrieved? On the first request the JSP is converted to
java and then compiled which is inevitably slow. Subsequent requests
execute the bytecode and are much faster. Did you take this into account?
Within struts2, I think it would be a fair assumption that JSP will
always be somewhat slower than pure Freemaker because the UIBeans are
rendering using the Freemarker template engine anyway. I wouldn't have
imagined it would be <10% slower but have no evidence. I'll try to run
the same comparison if I get a spare moment.
Anyone else care to comment?
Jordi Rubio Moreno wrote:
Hi Jeromy,
I apologize to respond this email so late.
I've develop a little test portal (close in functionality to production
portal), and I've notice that JSP taglib are slower that Freemarker equivalent
page (I'm speaking about a JSP result page rendered in 1.2s and the same page
rendered with freemarker in 600ms).
It's certain that there are a lot of JSP taglib documentation and S2 forums,
but in a production site it's critical an excellent time response.
I don't know if I'm doing anything wrong... I show you a little fragment of
test code in JSP taglibs an Freemarker:
***************** JSP taglibs **********************
<s:iterator value="offers">
<tr>
<td>
<s:url id="curUrl" action="Redirect"
includeParams="none">
<s:param name="url"><s:property
value="offUrl"/></s:param>
</s:url>
<a href="${curUrl}"><s:property
value="offTitle"/></a><br>
<s:if test="%{offCompany != null}">
<b><s:text name="Results.company"/></b>: <s:property
value="offCompany"/><br>
</s:if>
<s:if test="%{offSalary != null}">
<b><s:text name="Results.salary"/></b>: <s:property
value="offSalary"/><br>
</s:if>
<s:property value="offDescr"/><br>
<s:url id="addToShortListUrl" action="ShortList!add"
includeParams="none">
<s:param name="offId"><s:property
value="offId"/></s:param>
</s:url>
<a href="${addToShortListUrl}"><s:text
name="Results.addToShortList"/></a><br><br>
</td>
</tr>
</s:iterator>
******************** FREMARKER ************************
<#list offers as o>
<tr>
<td>
<@s.url id="curUrl" action="Redirect" includeParams="none"
url="${o.offUrl}" />
<a href="${curUrl}">${o.offTitle}</a><br>
<#if o.offCompany != "">
<b><@s.text
name="Results.company"/></b>: ${o.offCompany}<br>
</#if>
<#if o.offSalary != "">
<b><@s.text
name="Results.salary"/></b>: ${o.offSalary}<br>
</#if>
${o.offDescr}<br>
<@s.url id="addToShortListUrl" action="ShortList!add"
includeParams="none" offId="${o.offId}" />
<a href="${addToShortListUrl}"><@s.text
name="Results.addToShortList"/></a><br><br>
</td>
</tr>
</#list>
Is JSP taglib an slow and not recommended solution for production portals?
Thanks a lot for your patience :)
Best regards!
Jordi Rubio Moreno
-----Mensaje original-----
De: Jeromy Evans [mailto:[EMAIL PROTECTED]
Enviado el: sábado, 19 de mayo de 2007 6:13
Para: Struts Users Mailing List
Asunto: Re: [S2] Freemarker vs struts taglibs
If you're a new user of Struts2 and JSP then I suggest you simply start with
JSP as there's far more resources and tutorials available.
You only must become aware of Freemarker once you wish to extend the default
themes.
Within Struts2, by default Freemarker templates are used when rendering the UI
components (ie. the S2 taglib classes that extend AbstractUITag such as
TextField).
eg. if you use the <s:textfield> tag, Struts2 will render it using the text.ftl
template for the specified/current theme.
Eventually you may wish to extend the theme (change with the way <s:textfield>
is rendered) at which time you'll probably create your own templates for the UI
components-of-interested and start using Freemarker.
Eventually may you also wish to create your own taglib UI components following
the the S2 conventions in which case you'd follow the same template approach
(but Struts2 does not preclude you from using any other JSP/taglib convention).
As mentioned in previous responses and the link below, Struts2 allows you to
use entire Freemarker page results instead of JSP. There are good technical
arguments for using Freemarker instead of JSP, but generally speaking right now
you'll find more people to help, initially less effort, more jobs and better
IDE-support with JSP and almost everything you learn with JSP can be later be
applied within the Freemarker context.
On 5/17/07, Musachy Barroso <[EMAIL PROTECTED]> wrote:
FreeMarker is a template engine, with it's own syntax. JSP tags can
be used in FreeMarker, adding some configuration. In the case of
Struts tags, no configuration is required, and you can use them like
you would in JSP except a few differences, see this for details:
http://struts.apache.org/2.x/docs/freemarker.html
musachy
On 5/17/07, Jordi Rubio Moreno <[EMAIL PROTECTED]> wrote:
Hi,
I'm a bit confused. I need to decide if I'll use Freemarker or
Struts taglibs, and I don't know the differences between both. E.g.
what's
the
difference between <s:iterator> and <@s.iterator>, <s:url> and
<@s.url>,
etc etc...
I have seen all the tutorials and examples I have found working
with taglibs, but people says WebWork and Struts 2's choice is
Freemarker...
Please, help me to understand why taglibs or Freemarker :)
Thanks a lot!
Cheers!
--
"Hey you! Would you help me to carry the stone?" Pink Floyd
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