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Getting Set with J2EE, conclusion


This article, the second of two parts, will take you through writing a simple application with J2EE 1.4 SDK. It is excerpted from chapter two of the book Beginning J2EE 1.4 From Novice to Professional, written by James L. Weaver, Kevin Mukhar, and Jim Crume (Apress, 2005; ISBN: 1590593413).

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By: Apress Publishing
Rating: 5 stars5 stars5 stars5 stars5 stars / 5
December 15, 2005
TABLE OF CONTENTS:
  1. · Getting Set with J2EE, conclusion
  2. · Try it Out: Hello J2EE World
  3. · How it works
  4. · Summary

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Getting Set with J2EE, conclusion - Summary
(Page 4 of 4 )

This chapter described how to get the J2EE SDK installed, and to verify that the installation was successful. You also got your first taste of creating and running a J2EE application, as well as looking at some of the core concepts involved in building J2EE applications:

  • JavaServer Pages (JSPs) consist of HTML, with embedded snippets of Java code. The JSP is compiled into a servlet by the J2EE server which, when executed, emits HTML back to the requesting client.
  • WARs (Web Archives) are deployment components that contain the Web components of a J2EE application. The WAR contains the components themselves (such as JSPs), and the deployment descriptor that defines the contents of the WAR. The WAR can also contain server-specific deployment information.

At this point in the book, you should now be familiar with the following procedures:

  • How to install and configure the J2EE environment
  • How to start and stop the PointBase database server
  • How to start the PointBase Console
  • How to start and stop the J2EE server
  • How to start the Deployment Tool
  • The essential steps of building a J2EE application:

    • Create the application components
    • Bundle the components into an archive

    • Verify the contents of the archive to catch problems before deploying

    • Distribute the archive to the J2EE server

    • Test the application

If you've been able to get through this exercise, you're more than ready to dive into more detail. The next chapter will take you deeper into the details of JavaServer Pages--you'll learn the essential structure of JSPs, and how to enable users to interact with your JSPs.


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