develop e-commerce applications

This is a two-day course, to extend core Java skills to building e-commerce applications. The course is built around the JSP technology - an extension to Servlets. Design issues are central to the course, in particular how to:

migrate from fat to thin clients
divide presentation from application logic
modularize server code with server beans
use Component Based Design, for example to encapsulate enterprise system access

Duration: 2 days

objectives

learn the fundamental technologies behind Java-based e-commerce Web applications
practice good design, based on the Sun e-commerce Application Blueprint
build an e-commerce application with Java Web-based technology
partition an application to separate the concerns of presentation, logic, and data
completely decouple the presentation layer with JSP templates

target audience

The course is suitable for Java developers/analysts who wish to write code or work to a productive programming model for the Web. The course is run on the J2EE platform, and the development language is of course Java.

prerequisites

Ideally this training would be preceded by the course: design and develop Java applications.

Basics of e-commerce

Introduces the fundamental parts to an e-commerce application

server technology
client/server Vs n-tier
e-commerce components
distributed applications
JDBC for dynamic data
access to stored procedures
various models e-commerce application design

Client side

Weigh up the pros and cons of client options: pure HTML, applets, XML, ...

applet syntax and semantics
applets and HTML
browser restrictions and problems
client/Server divide in Applet-based applications
applet to server communication
downloadable client model

Server side

Introduce Servlets

driver independence and middleware
JNDI database lookups
JNDI context
running JVM models
cycling object instances
request / response model
action on data
manipulate JavaBeans (get / set data)
session state data
Servlet containers
deployment

Dynamic user interface

Introduce a dynamic UI with JavaScript.

overview of language - syntax and semantics
Document Object Model (DOM)
browser support - checks to avoid errors
basic functions
HTML integration
event handling
form validation
browser window control
dialog alerts

Separate code from Web design

Partition view generation with JSP

dynamic presentation generation problems
from Servlets to JSP
JSP syntax and semantics
declarations
scriptlets: Java embedded in HTML
JSP and the MVC architecture

e-commerce components

Modularize presentation logic with server beans.

JavaBeans access from JSP
JavaBeans encapsulation of data and logic
threading and integrity issues
roles with MVC

e-commerce application templates

Partition dynamic elements from static with JSP templates.

custom actions
encapsulation of presentation functions
tag libraries
template mechanism
future role of XML
current limitations of XML

e-commerce application patterns

Use tested techniques for server side objects, encapsulated in patterns

factory pattern and database connection pools
factory pattern and lifecycle control
command pattern and access to enterprise components
mediator pattern and security issues

Please note, when taught at your site, this course is customizable. Modules can be adapted, removed, added from other courses, or even created.

timetable

Day 1	Basics of e-commerce Client side Server side Dynamic user interface
Day 2	Separate code from Web design e-commerce components e-commerce application templates e-commerce application patterns

course instructor

The course is presented by one of our senior consultants, each of whom has at least ten years' experience in software development, and at least three years' experience as a trainer and consultant in a diverse range of application areas.