I see.... there's still a lot of options on the table and the only part
that has anything to do with tomcat is the user interface.
A good starting point might be to look at database backed webapps with a
similar UI. All you'd have to do to them is change the persistence from
a database to file io. Personally I'd go for the database backend
letting the database server handle file io, but .... well ... that's
me. Plus good database server software is available in open source with
good cross-platform support.
To get some ideas started for you, I just completed a data browser
(database server backed) webapp with the entire interface being
expressed through one jsp file. The top level jsp acted as the
controller if you will in a MVC design pattern. The jsp use the jstl
standard taglibs to handle imports of jsp page segments which made up a
very small model component and the rest acted as the view component. I
encoded various parameters in request parameters for a continuous look
and feel without sessions. It did not attempt to write database data
though so that's where it fell short of what you're after.
Personally I'd recommend doing some reading on design patterns so you
can really define what you're after and once you have a solid design,
start looking at putting it into code. Maybe you want to use
commons-validator to validate form input, maybe you'd like to implement
that in a filter so the data is verified good before you get to the
servlet or jsp handling the actual update. There are a lot of toolkit
libraries designed to handle different parts of processing for you
leaving you to just define the higher levels of logic and of course the
look and feel of the UI.
--David
Teh Noranis Mohd Aris wrote:
I would like to refer to an example servlet where I can add fields (such as
name, staff number, etc...) to a random access file and view the file
information by accessing the field (eg. staff number). Please help. Thank you.
Yours Sincerely,
TEH
David Smith <[EMAIL PROTECTED]> wrote:
The key phrase here is "...that really suits my needs." Could you
provide more information? Your question is a rather generic one not all
that specific to java servlets.
--David
Teh Noranis Mohd Aris wrote:
Hello All,
Does anyone have an example of a servlet program that uses random access file
or any useful links? I tried searching yahoo and google but could not find one
that really suits my needs. Thank you.
Yours Sincerely,
TEH
---------------------------------
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Have a HUGE year through Yahoo! Small Business.
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