develop e-commerce applications
course overview
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.
course syllabus
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.
further information
timetable
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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.