RE: ** POLL - How many of you are playing with Java/Websphere/JSP **

Charles,

Go through stuff on the  moreservlets.com site that will take you through
the basics of web servers, servlets and JSPs.

Then once you got the basic understanding, use the wizards in WDSC to
generate you a basic java web application. 

Run websphere in debug on your local PC, then single step through the code.

I found I learned more through doing this and tweaking the generated code
than anything else.

Ive been through this process and now want to go on and learn some of the
more advanced java concepts

Cheers
Colin.W
  


-----Original Message-----
From: CWilt@xxxxxxxxxxxx [mailto:CWilt@xxxxxxxxxxxx] 
Sent: 19 March 2004 14:30
To: midrange-l@xxxxxxxxxxxx
Subject: RE: ** POLL - How many of you are playing with Java/Websphere/JSP
**


Joe,

Are there any books you recommend for learning how to use this on the
iSeries (and other platforms)?

Thanks,
Charles


> -----Original Message-----
> From: Joe Pluta [mailto:joepluta@xxxxxxxxxxxxxxxxx]
> Sent: Thursday, March 18, 2004 7:32 PM
> To: 'Midrange Systems Technical Discussion'
> Subject: RE: ** POLL - How many of you are playing with
> Java/Websphere/JSP **
> 
> 
> > From: Pete Helgren
> > 
> > Maybe I have Java dyslexia or something but when I see HTML, Java
> code,
> > and JavaScript all mixed together with Javabeans
> 
> I think perhaps you haven't gotten a chance to work with a proper JSP 
> interface.  It sounds like you're working with CS-101 geek-level JSPs, 
> which don't use servlets.  Back in the olden days, ex-Perl programmers 
> wrote JSPs as self-contained units which contained both business logic 
> and UI.  Those days are long gone, and those programmers are now busy 
> doing .NET stuff <grin>.  Instead, we now have JSP Model II which 
> bears a striking resemblance to the old green screen interface
> we're used to.
> 
> With JSP Model II, the idea is simple:
> 
> 1. A servlet is invoked (from an HTML menu, usually)
> 2. The servlet executes business logic to generate data
> 3. The servlet populates a bean with that data
> 4. The servlet invokes the JSP
> 5. The JSP gets data from the bean and renders it with the rest of the 
> HTML 6. The user enters data and hits a button
> 7. The user data is posted back to the servlet
> 
> Think of it this way: A display file is basically a bunch of constants 
> with fields that allow you to display variable data from a buffer 
> (some of which may be input-capable).  A Model II JSP is an HTML page 
> with places where you display variable data from a bean (some of
> which may be
> input-capable).
> 
> A Model II JSP is very like a traditional display file.  The
> servlet can
> execute business logic in its native Java, or, like I prefer to do, it
> can call an RPG program to do the heavy lifting.
> 
> Anyway, it's a great architecture.
> 
> Joe
> 
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