J2EE is another variant of Java including Java Standard Edition plus other useful Java technologies like JavaMail, JAXB, Activation, Servlets, JMS (Java Messaging Service), JSF (Java Server Faces), EJB (Enterprise Java Beans), and others. Its APIs are extremely component-oriented providing pluggable interface for j2EE application and j2EE web application developments. It provides high-end support in the development of enterprise-level software and web solution. The reasons why developers prefer it over other languages are its performance, flexibility, functionality
WHY NEED OF J2EE?
Everybody knows the power of web. A web application nowadays is used at three different levels: services, business services and data services. Fortunately, J2EE provides the best support at all three levels. With the support of skilled J2EE developers, enterprises can acquire high-end web solutions and confidently spread their business across the world. Due to this, most of the companies tend to choose J2EE development for their requirements.
THE PARTS AND COMPONENTS OF J2EE
J2EE has a number of components that helps developers build and implement enterprise solutions. Some most popular technologies of J2EE are as follows:
JSP or Servlets: JSP or Servlets are used in developing software applications either directly or indirectly. Servlets are in use for a very long period of time and they are perfect alternatives of ASP from Microsoft.
EJB: EJB are known as enterprises Java beans and the most popular J2EE technology. This provides solutions like remote access, instant polling, declarative transactions, etc.
JMS and JNDI: JMS stands for Java Messaging Service that is used for building synchronized communication between different Java objects. JMDI stands for Java Naming Directory Interface and is used by EJB.
Advantages of using j2EE