Book Image

WebSphere Application Server 7.0 Administration Guide

By : Steve Robinson
Book Image

WebSphere Application Server 7.0 Administration Guide

By: Steve Robinson

Overview of this book

As an administrator you need a secure, scalable, resilient application infrastructure to support the developers building and managing J2EE applications and Service Oriented Architecture services. WebSphere application server, a product from IBM, is optimized to ease administration and improve runtime performance. It helps you run applications and services in a reliable, secure, and high-performance environment to ensure business opportunities are not lost due to application downtime. It's easy to get started and tame this powerful application server when you've got this book to hand. This administration guide will help you provide an innovative, performance-based foundation to build, run, and manage J2EE applications and SOA services, offering the highest level of reliability, security, and scalability. This book will take you through the different methods for installing WebSphere application server and demonstrate how to configure and prepare WebSphere resources for your application deployments. During configuration you will be shown how to administer your WebSphere server standalone or using the new administrative agent, which provides the ability to administer multiple installations of WebSphere application server using one single administration console. WebSphere security is covered in detail showing the various methods of implanting federated user and group repositories. The facets of data-aware and message-aware applications are explained and demonstrated giving the reader real-world examples of manual and automated deployments. Key administration features and tools are introduced, which will help a WebSphere administrator manage and tune their WebSphere implementation and application for success.
Table of Contents (16 chapters)
WebSphere Application Server 7.0 Administration Guide
Credits
About the Author
Acknowledgement
About the Reviewers
Preface

Application file types


There are three file types we work with in Java applications. Two can be installed via the WebSphere deployment process. One is known as an EAR file, and the other is a WAR file. The third is a JAR file (often re-usable common code) which is contained in either the WAR or EAR format. The explanation of these file types is shown in the following table:

File Type

Description

JAR file

A JAR file (or Java ARchive) is used for organising many files into one. The actual internal physical layout is much like a ZIP file. A JAR is generally used to distribute Java classes and associated metadata. In J2EE applications, the JAR file often contains utility code, shared libraries, and EJBS. An EJB is a server-side model that encapsulates the business logic of an application and is one of several Java APIs in the Java Platform, Enterprise Edition with its own specification. You can visit http://java.sun.com/products/ejb/ for information on EJBs.

EAR file

An Enterprise Archive...