Java J2EE

J2EE is the industry standard for enterprise Java computing. It defines the standard for developing multitier enterprise applications and is the widely used platform for server programming. The J2EE platform simplifies enterprise applications in the following ways:

  • Basing the application on standardized, modular components
  • Providing a complete set of services to those components
  • Handling many details of application behavior automatically

J2EE provides a component based approach to the design, development, assembly, and deployment of enterprise applications. This approach reduces cost and also enables a fast track through design and implementation.

Features

J2EE is another big step in the journey towards the ideal of a simple, streamlined and well-integrated platform. Let us look at some important features of J2EE.

  • Complete web services support: The J2EE platform provides a framework for developing and deploying web services on the Java platform. The Java API enables Java technology developers to develop SOAP based interoperable and portable web services.
  • Faster solutions delivery time to market: To simplify development, J2EE platform uses containers. J2EE containers enable the separation of business logic from resource and lifecycle management. This enables the developers to focus on writing business logic rather than writing enterprise infrastructure.
  • Low level services are already implemented: In order to be successful, an enterprise application needs to implement complex services. Some of these services are transaction and state management, resource pooling and multi-threading. The J2EE architecture is so developed that it separates those low level services from the application logic. You can save a lot of time if you need those services because those services are implemented by applications servers.
  • Simplified connectivity: J2EE have simplified technology, which makes it easier to connect the existing applications and systems and bring those capabilities to the web, to cell phones, and to devices.
  • Well documented and understood: J2EE is developed by a consortium formed by several major companies in the industry.
  • Standardized and reliable: J2EE is standardized and reliable software. Using this software architecture decreased your future costs and ensures longevity of your applications.
  • APIs used are well documented: Many APIs are used to implement low level details of enterprise applications. These APIs are already written and well documented. This ensures that the APIs are reliable and also save you a lot of time.

Advantages

Some advantages of using J2EE are:

  • J2EE simplifies application development and decreases the need for programming and programmer training.
  • There is separation of responsibilities in J2EE, which makes it simpler, reliable, and fast too.
  • J2EE has a flexible security model. This provides you the flexibility to deploy your application to any server after development.
  • J2EE platform helps IT by reducing TCO and at the same time avoiding single-source for their enterprise software needs.
  • J2EE is based on Java, therefore, it leverages all the power and capabilities of the Java platform.

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