increases, integration of software technologies that support the Web, networking, and database connectivity is becoming critical. Java 2 Platform, Enterprise Edition (J2EE) offers a set of Java-based enterprise technologies for developing Web-based enterprise application systems that cross the boundaries of different hardware platforms, and different networking and operating systems.
J2EE offers "e;Write Once, Run Anywhere"e; platform, and takes advantage of JDBC API for database access, CORBA technology for interaction with existing enterprise resources, a security model that protects data in Internet applications. Building on this foundation, J2EE offers Enterprise JavaBeans(EJB), JavaBeans, Java Servlets API, and JavaServer Pages (JSP) technology.Enterprise JavaBeans and JavaBeans are Java-based component technologies that provide a universal integration and enabling technology for component-based development of Web-based enterprise applications.
The J2EE standard includes complete specifications and compliance tests to ensure portability of applications across a wide range of existing enterprise systems capable of supporting J2EE. HTTP, the Java language, andthreads support enterprise Java-based technologies. The set of Java-based technologies for developing Web-based enterprise application include: