The Importance of J2EE Server in the software scenario ?
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by: gtwlabs
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Businesses all over the globe have realized that they can gain a sustainable advantage over their peers by developing custom applications for their unique business needs. Quick development and deployment are required whether in-house applications for raising employee efficiency are being created or rich Internet applications to cater to the specialized needs of the clients are being developed. Another issue, which is of concern to enterprises, is the portability and scalability of their enterprise applications. An enterprise application is viable only when it is easily portable across platforms and devices. Scalability is also another parameter, which decides the long-term feasibility of an application. Enterprise applications must be scalable so that they can be scaled up to accommodate thousands of users simultaneously. J2EE based enterprise applications can be executed across platforms and are functional across devices. J2EE Development services for established as well as emerging companies across the world. 1. Multi-platform support language and support for web-services also 2. Develop dynamic web applications for e commerce, e learning, polls, HTML forms processing, and more. 3. Combine Java technology-based applications or services to create highly customized applications or services. The J2EE platform provides a multi-tiered distributed application model, the ability to reuse components, a unified security model, and flexible transaction control. Not only can you deliver innovative customer solutions to market faster than ever, but your platform independent J2EE component based solutions are not tied to the products and APIs of any one vendor. . The J2EE specification defines the following kinds of components: Servlet and Java Server Pages (JSP) components (also called Web components): These typically execute in a web server and respond to HTTP requests from web clients. Servlet and JSP pages may be used to generate HTML (or even XML) pages that are an application’s user interface. Enterprise Java Beans (EJB) components: These execute in a managed environment that supports transactions. Enterprise beans typically contain the business logic for a J2EE application It is always advisable for outsourcing Java to a company which houses experienced and technically qualified Java professionals which ensures best services and that too in perfect quality. J2EE or the Java to Enterprise Edition platform developed by Sun Microsystems stipulates the criterion for developing multi-tier enterprise applications. The J2EE platform leverages the robustness of the Java programming language that allows developers to write the code only once and execute the application on any platform. Presently more than two-thirds of development managers use the J2EE platform to develop and deploy their applications. The user level web application are generally created in the simple HTML, DHTML, sometimes the complex COM and Java script applets. Most of the softwares that were developed earlier were based on the client server architecture, which needed it to be installed separately in each of the user’s computer. Upgrading such web application became extremely difficult as it involved upgrading each and every machine in which it was earlier installed. Another hassle that the client server custom application development required was to license it every time you installed a web application in your computer. Most database driven applications that are developed using open source technologies have a three-tier structure. The web application itself runs in the browser of a desktop or a laptop. Users can only access the front end of the application to input data or search strings. Java being platform independent allows applications to be accessed on any device like a pda or cellphone or any telnet device. Enterprise Java bean application development occurs by employing a three-tier architecture consisting of a front end known as the web container, an EJB container, the third tier being the database. This three-tier structure has proved to be immensely useful for enterprise application development. A web application developed in 3 tiers stage: User services, business services, & data services. The User service tier creates a visual gateway for the consumer to interact with the application. This can range from basic HTML and DHTML to complex COM components and Java applets. Java API for XML Processing (JAXP): Designed to assist applications in parsing and transforming XML documents. Java Naming and Directory Interface (JNDI): Defines methods that perform directory operations, such as searching for objects using their attributes and associating attributes with objects. Java API for XML-based Remote Procedure Call (JAX-RPC): Allows developers to create clients and services that the Web Service Description Language (WSDL) describes. WSDL describes services as a set of endpoints operating on messages and is defined in XML. Java API for XML-based Web Services (JAX-WS): Similar to JAX-RPC in that it enables developers to implement clients and services described by WSDL, but JAX-WS requires no deployment descriptors because it uses annotations, such as @WebService, to declare Web service endpoints. Using JAX-WS, you can deploy a Web service without using deployment descriptors! Java Architecture for XML Binding (JAXB): Provides a binding compiler and a runtime framework to map Java objects to XML documents. This functionality makes it possible to ensure that the system accepts and processes only valid messages. The compiler automatically translates World Wide Web Consortium (W3C) XML schema into Java classes, keeping you from having to write any complex parsing code. |
About the Author
Eric Paul is working with An Offshore Software Development Company and Experts in Offshore Software Development and J2EE Application Development Services Across the Globe Specially in US, UK, Denmark etc.
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