Chapter 3. The J2EE Specification
Sun Microsystem's Java 2 Platform, Enterprise Edition (J2EE) specification is the proposed Java-based solution to the problem of building n-tier applications. J2EE focuses on defining client- and server-side technologies that make these applications not only easier to build but also easier to integrate. The J2EE spec encompasses all kinds of client/server types and interactions: It deals with Web clients, Web-based information servers, pure application servers, applets, and both synchronous and asynchronous solutions.
Although J2EE specifies many complex and powerful technologies, it is still just a specification. It requires vendors to actually develop what it proposes. Several have: BEA offers its WebLogic ...
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