Short for Java 2 Platform Enterprise Edition. J2EE is a platform-independent, Java-centric environment from Sun for developing, building and deploying Web-based enterprise applications online. The J2EE platform consists of a set of services, APIs, and protocols that provide the functionality for developing multitiered, Web-based applications.
Some of the key features and services of J2EE:
At the client tier, J2EE supports pure HTML, as well as Java applets or applications. It relies on Java Server Pages and servlet code to create HTML or other formatted data for the client.
Enterprise JavaBeans (EJBs) provide another layer where the platform's logic is stored. An EJB server provides functions such as threading, concurrency, security and memory management. These services are transparent to the author.
The Java servlet API enhances consistency for developers without requiring a graphical user interface.
Picking a Winner: .NET vs. J2EE Although both frameworks stand on a foundation of programming languages, object models and virtual machines, they are strikingly different when you consider the design goals of their runtime environment.
Sun's J2EE Page Information, fAQs, tutorials, white papers, news and updates concerning J2EE.
J2EE Project Dangers Avoid these 10 J2EE dangers to ensure your enterprise Java project's success.
How Do J2EE and .NET Measure Up? As the dominant platforms for enterprise and ASP applications as well as Web services, it's tempting to picture Sun's J2EE and Microsoft's .NET in a winner-take-all fight to the finish. However, the competition is more complicated than that.
