Chapter 3. Java EE Basics – Persistence, Query, and Presentation

In the previous chapter, we set up all the necessary software to develop and execute the applications that will be developed throughout the book. In this chapter, we will:

• Take a look at the business case used as a background to the technical features and implementation

• Create an entity project to provide isolation and reuse of business entities, defining a persistence layer

• Create a web project with a simple query page that would access the entities we just created

• Deploy and run both projects to make sure every component—database, application server, and libraries—is configured and working as expected