February 2004
Intermediate to advanced
848 pages
27h 25m
English
Content preview from WebLogic: The Definitive GuideBecome an O’Reilly member and get unlimited access to this title plus top books and audiobooks from O’Reilly and nearly 200 top publishers, thousands of courses curated by job role, 150+ live events each month,
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Packaging and Deployment
As a J2EE-compliant web container, WebLogic Server can host a number
of web applications. Each web application is a
logical collection of servlets, JSPs, client-side applets, and static
web resources such as HTML pages, images,
multimedia documents, etc. In addition, a web application may use
filters, JSP tag libraries, utility Java classes, and JavaBean
components. Each web application is executed in its own runtime
environment provided by the web container—a handle to this
environment is provided by ServletContext. We
refer to JSPs and servlets as web components.
These web components also have access to external resources and
WebLogic enterprise services such as deployed EJB components, JDBC
data sources, JMS destinations, XML parser factories, and much more
through access to ServletContext.
Structure of a Web Application
A web application is structured as a hierarchy of directories — the root directory serves as the document root for all resources in the web application. These directories contain all the JSPs, servlets, and other, static resources such as images that are referenced by the application. A special directory named WEB-INF holds all resources that aren’t part of the public document tree of the application. So, a web client will not have direct access to any file stored under the WEB-INF directory, which is quite useful for protecting from clients specific resources in the web application. However, the contents of the WEB-INF directory are ...
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O’Reilly covers everything we've got, with content to help us build a world-class technology community, upgrade the capabilities and competencies of our teams, and improve overall team performance as well as their engagement.Julian F.
I wanted to learn C and C++, but it didn't click for me until I picked up an O'Reilly book. When I went on the O’Reilly platform, I was astonished to find all the books there, plus live events and sandboxes so you could play around with the technology.Addison B.
I’ve been on the O’Reilly platform for more than eight years. I use a couple of learning platforms, but I'm on O'Reilly more than anybody else. When you're there, you start learning. I'm never disappointed.Amir M.
I'm always learning. So when I got on to O'Reilly, I was like a kid in a candy store. There are playlists. There are answers. There's on-demand training. It's worth its weight in gold, in terms of what it allows me to do.