I would suggest you take a closer look at my original suggestion. If you
use the Jasper task, then I would think that the compiled versions of
the JSP aren't portable off Tomcat. e.g.
public final class index_jsp extends org.apache.jasper.runtime.HttpJspBase
implements org.apache.jasper.runtime.JspSourceDependent {
Your target container _may_ provide a mechanism for compiling JSPs,
otherwise you _do_ need to request each page as part of your deployment
strategy to make sure that they have been compiled.
Cheers,
James
Rashmi Rubdi wrote:
Hi James,
I use the Jasper task to mainly reduce the time it takes to load a JSP page.
I only execute the Jasper task just before creating the WAR file for the
production environment.
On the production environtment that gets multiple visitors throughout the day, every time someone makes the *first* request to a particular JSP page - the container's compiler compiles it for the first time.
This is fine if the application is small but if the app has too many JSP pages
then, the container would compile each and every JSP page just once thus
slowing the overall application response time especially if multiple users are accessing different parts of the web app at the same time. Pre-compiling the JSPs makes the web application response time much faster because the container only serves the class file.
If you refer to the JSP 2.0 Final Release Specification (PDF)
jsp-2_0-fr-spec.pdf on page 1-7 , it lists all the benefits of pre-compiling
JSPs.
I don't use the Jasper task for the development environment though, because one
wouldn't mind a negligible wait for just one JSP page in the development
environment and
also because the Jasper task takes a very long time to complete, it is not
suitable for a dev build but only for production build.
-Regards
Rashmi
----- Original Message ----
From: James Abley <[EMAIL PROTECTED]>
To: Ant Users List <user@ant.apache.org>
Sent: Wednesday, February 21, 2007 3:12:40 AM
Subject: Re: How to compile jsp files with ANT
Why do you want to do this; e.g. is it part of a check to make sure that
all JSP pages will compile? Typically, you'd get better results by using
httpunit or a spider of sort sort to access every page and check that it
doesn't come back with a 500 response. That way, you are using the
deployment target container mechanism to compile the JSPs.
James
Rashmi Rubdi wrote:
Hi Lokesh,
I'm assuming you want to pre-compile JSPs. You can use Jasper for that.
Take a look at the Jasper ANT task here:
http://tomcat.apache.org/tomcat-5.5-doc/jasper-howto.html
The pre-compilation process first converts all JSP files to .java files and
then compiles them into class files, it will also modify web.xml
to create a servlet mapping of every JSP class file.
for example:
<servlet>
<servlet-name>org.apache.jsp.web._005fterms.copyright_jsp</servlet-name>
<servlet-class>org.apache.jsp.web._005fterms.copyright_jsp</servlet-class>
</servlet>
<servlet-mapping>
<servlet-name>org.apache.jsp.web._005fterms.copyright_jsp</servlet-name>
<url-pattern>/web/_terms/copyright.jsp</url-pattern>
</servlet-mapping>
I guess that's what you are looking for.
-Rashmi
----- Original Message ----
From: Lokesh Jayaraman <[EMAIL PROTECTED]>
To: user@ant.apache.org
Sent: Tuesday, February 20, 2007 4:41:55 AM
Subject: How to compile jsp files with ANT
Dear,
How to compile JSP files using ANT and Websphere Application Server 6.0
and also use websphere's java compiler and libraries
Kindly help me to solve this pbm
by
Lokesh
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