E-Commerce Application Walkthrough
We'll begin by conducting a step-by-step walkthrough of the code contained in this application. If you'd like to see any of the sections we'll discuss here in their complete context, please reference the end of the chapter, where all of the code listings are given in their entirety.
Keeping Track of the Data
In this application, we use several kinds of data, and each time we need to access one, we are interfacing into a database using JDBC to a data source called "shop." This database will drive our WAP application. It includes the product catalog, shopping cart storage, and ordering information. Refer to Chapter 17, "Scheduling," for database setup parameters.
The database itself has five tables. The first ...