Modern Programming Language

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13 Νοε 2013 (πριν από 3 χρόνια και 11 μήνες)

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Modern Programming
Language

Web Container & Web Applications


Web applications are server side applications


The most essential requirement for server side
application development are:


A programming model and an API


Server Side runtime support


Deployment Support


Web Container & Web Applications


To meet these requirements when building and
running web applications, the j2ee specification
provides the following


Java servlets and Java Server Pages


In J2EE java servlets and java server pages are called web
components


Web Applications


It could be a collection of java servlets, jsp pages, helper classes,
class libraries, static resources, documents and images


Web container


A web container is essentially a java runtime that provides an
implementation of java servlet API and facilities for JSP pages


A packaging structure and deployment descriptor


The J2EE specification defines a packaging structure for web
applications. The specification also defines a deployment
descriptor for each web application


The deployment descriptor is an XML file that allows the
customization of web applications at deployment time

Java Servlets


Java servlets are small, platform independent server
side programs that programmatically extend the
functionality of the web server


The java servlet API provides a simple framework for
building application on such web servers