RE: JSP and MVC (newbie question)

["David Morris" <David.Morris@xxxxxxxxxxxxx>]

Kelly,

MVC is not enforced by any tool. Best practices and experience say you
should separate your business logic from your control and view logic and
that is what MVC is. Tools like JSF, Struts, Spring, Velocity, display
files, Smarty templates, hibernate, EJBs, etc. just help you break up
your applications into logical pieces that support the model, view, or
controller. It is up to you to use them that way. I have never used JSP
scriptlets or tags to build a controller and I wouldn't recommend it
because reuse, debugging, and deployment will all be issues, but it is
possible.

David Morris

>>> kc62301@xxxxxxxxx 11/5/2004 7:33:41 AM >>>
I've heard of Java Server Faces but never really
looked into them. Thanks for the lead on info on using
JSF with WebSphere. I also downloaded the JSF
reference implementation and documentation from Sun. 

Thanks again for the tip. I'll check it out.

Kelly


--- "Bartell, Aaron L. (TC)"
<ALBartell@xxxxxxxxxxxxxx> wrote:

> JSF (JavaServer Faces) does just that!  Aside from
> it's custom tag
> library (say JSP tag lib), and the tooling IBM has
> built for drag and
> drop UI development, it has a life cycle that it
> goes through that
> implements many features of MVC.  Check out this
> tutorial to learn more
> about JSF:
>
http://www-106.ibm.com/developerworks/websphere/techjournal/0401_barcia/

> barcia.html
> 
> This describes the lifecycle:
>
http://www.javaworld.com/javaworld/jw-11-2002/jw-1129-jsf-p2.html 
> 
> HTH,
> Aaron Bartell 
> 
> -----Original Message-----
> From: java400-l-bounces@xxxxxxxxxxxx 
> [mailto:java400-l-bounces@xxxxxxxxxxxx] 
> Sent: Thursday, November 04, 2004 2:15 PM
> To: java400-l@xxxxxxxxxxxx 
> Subject: JSP and MVC (newbie question)
> 
> This is a newbie question about JSP and MVC. 
> 
> Since JSP is a scripting language to create
> servlets, why not use JSP to
> create controller servlets in MVC? 
> A JSP does not have to contain any HTML/XHTML tags
> at all.  It could
> contain 100% JSP tags and Java code.
> Using this kind of JSP for controllers would
> eliminate the need for the
> developer to compile code and allow greater
> flexibility where
> controllers are stored (servlet class files must be
> in the WEB-INF
> directory, but JSPs can be stored anywhere). 
> 
> However, I'm not experienced at Web development, and
> there's probably
> many things I'm not considering.
> Please enlighten me.
> 
> Thanks,
> Kelly