J2EE Applications and BEA WebLogic Server

by Yochem, Angela; Carlson, David; Stephens, Tad

• ISBN13: 9780131015524
• ISBN10: 0131015524
• Edition: 2nd
• Format: Paperback
• Copyright: 2004-06-16
• Publisher: Prentice Hall

Summary

J2EE: Applications and BEA WebLogic Server(R)J2EEApplications and BEA WebLogic Server(R)Second EditionRevised by Angela Yochem David Carlson Tad StephensA revised and updated edition of the best-selling book by Michael Girdley, Rob Woollen, and Sanda L. Emerson, this is your start-to-finish guide to developing Web-based applications using J2EE 1.3 (with references to 1.4 features) and the new BEA WebLogic Server 8.1. One step at a time, and one technology at a time, the authors walk you through building a complete, robust Web application. You' ll prototype user interfaces, code server-side presentation logic and JSPs, implement database connectivity, establish central registries, provide JMS messaging, code EJBs, even integrate email facilities. Along the way, you' ll discover how each module fits into your overall application design, as you learn best practices for enhancing availability, reliability, and security. Coverage includes: Leveraging the Model-View-Controller (MVC) design pattern Using JDBC and BEA WebLogic' s transaction support to integrate enterprise databases Preparing your applications to run in clustered BEA WebLogic Server environments Developing EJBs that fully leverage BEA WebLogic Server' s container services Best practices and guidelines for testing, compilation, and deployment Working with WebLogic Workshop, BEA' s unified development environment Utilizing BEA WebLogic Platform to integrate business processes and back office systems in an end-to-end application frameworkJ2EE Applications and BEA WebLogic Server, Second Edition is highly approachable for WebLogic beginners, and exceptionally useful for experienceddevelopers. Whatever your background, it' ll help you build the high-performance, high-value Web applications your business demands. CD-ROM INCLUDESFull evaluation versions of BEA WebLogic Server 8.1, WebLogic Server Admini

Author Biography

Tad Stephens is a system engineer with BEA Systems, Inc.

Table of Contents

Preface

Acknowledgments

Overview

WebLogic Server and J2EE

J2EE Technologies Covered in This Book

Presentation Logic

Database and Transaction Support

Object Registry and Remote Method Invocation

Enterprise JavaBeans

Java Message Service

JavaMail

Administration

Security

WebLogic Server's Distributed Deployment Support

About WebAuction

WebLogic Platform 8.1

Presentation Logic

Presentation Logic

Introducing Servlets

The Web Application

Best Practices for Servlets

References

Advanced Servlet Techniques

Servlets and Web Sessions

Baking Your Own Cookies

Filters

Using Servlets with WebLogic Server Clustering

Best Practices for Servlets

Resources

Putting It All Together

Using WebLogic Server JavaServer Pages

Why JSP

Integrating Java Code and JSP Markup

JSP Basics

Custom tags

References

WebLogic Server JDBC and JTA

WebLogic Server JDBC

Transactions and JTA

WebLogic Server and Distributed Transactions

Prepared Statements

Error Handling and SQL Warnings

Metadata

Advanced JDBC Features

Best Practices for JDBC

JDBC and Transactions in the WebAuction Application

Summing It Up

Remote Method Invocation and Distributed Naming

Remote Method Invocation

JNDI: Java's Naming Service

Conclusion

References

Enterprise Messaging with the Java Message Service (JMS)

JMS Fundamentals

Sample JMS Queue Producer/Consumer

JMS Messages

Message Types

JMS and Transactions

Clustering JMS

Exception Listeners

Using Multicast JMS

JMS Best Practices

Putting It All Together

References

Using Session Enterprise JavaBeans

Enterprise JavaBeans Overview

Basics of EJBs

Stateless Session EJBs

Stateful Session EJBs

Using Transactions with Session Beans

EJB Security

EJB Environment

EJB References

Resource Manager References

Handles

Development Tasks and WebLogic Workshop

Best Practices

Putting It All Together

References

Entity EJBs

Rationale for Entity EJBs

Entity Bean Basics

CMP Entity Bean Example

CMP

Container-Managed Entity Bean Lifecycle

Introduction to CMRs

Writing EJB-QL for CMP Finders

BMP Entity Beans

Advanced Topics for Writing Entity EJBs

Entity Bean Inheritance and Polymorphism

Entity Beans and Locking

Using Read-Only Entity Beans

Session Beans as a Wrapper for Entity Beans

Using Java Beans as Value Objects

BMP Versus CMP

Putting It All Together

References

Using Message-Driven EJBs

Message-Driven EJB Basics

Message-Driven EJB Example

MDBs and Concurrency

Specifying a JMS Connection Factory

Using Transactions with MDBs

Message Acknowledgment

New Customer Example

Using JMS for Communication with Enterprise Systems

Message-Driven EJB Advantages

Putting It All Together

References

11

About E-mail

About JavaMail

Using JavaMail to Send Simple E-mail

Where to Find More Information on JavaMail and Internet Mail

JavaMail Best Practices

Administering WebLogic Server 8.1

Java Management Extensions Overview

WebLogic Server Administration

WebLogic Administrative Tools

Application Deployment

WebLogic Service Performance Monitor

WebLogic Clustering Configuration

Administrative Best Practices

Putti

Table of Contents provided by Publisher. All Rights Reserved.

Excerpts

Preface What Is BEA WebLogic Server? BEA WebLogic Server is the market-leading application server for enterprise-level, multitier, fully distributed applications. WebLogic Server's implementation of J2EE 1.3 technologies, Web services, and related standards make it the de facto industry standard for developing and deploying Java- based Web applications. BEA WebLogic Server offers efficient use of system resources such as client and database con-nections. It can support commerce applications for millions of users and hundreds of thousands of requests per hour. It supports clustering of server instances for reliability, scalability, and high per-formance. It maintains and manages application logic and business rules for a variety of clients. In this book, you will learn about BEA's implementation of Sun Microsystems' Java 2 Platform Enterprise Edition (J2EE). This preface and Chapter 1 introduce many acronyms that are part of the J2EE suite of technologies. The remaining chapters in the book cover many of these technologies in detail. No prior knowledge of J2EE technology is assumed, so if the J2EE terminology makes no sense at this point, don't worry. The remaining chapters provide an introduction to the J2EE specifi-cation and the WebLogic Server implementation. WebLogic Server Overview The Container-Component Model The WebLogic Server platform (in Java parlance) can be thought of as a container that provides ser-vices to components of user applications. Components such as EJBs, JavaServer Pages (JSPs), and serv-lets reside in the WebLogic Server container and take advantage of the services provided by it. The WebLogic Server container (the large pentagon) encloses various J2EE services. Interconnections of services are depicted with lines and arrows. WebLogic Server management (via the WebLogic Management Framework) and security are shown as layers external to the container. WebLogic Platform Overview BEA's WebLogic Platform is a complete application infrastructure platform, enabling developers to build and integrate enterprise applications easily and rapidly. WebLogic Platform is designed to address end-to-end problems for the enterprise, providing standards-based frameworks to help you build, test, and deploy J2EE applications, business processes, workflows, messaging applications, enterprise portals, trading partner applications, and more. WebLogic Platform consists of a suite of products, including WebLogic Server, WebLogic Inte-gration Server, WebLogic Portal Server, WebLogic Workshop, and WebLogic JRocket JVM. These products share a common infrastructure and common tools, making WebLogic Platform an excellent choice for building and integrating enterprise applications. Chapter 18 provides an overview of WebLogic Platform components and how they relate to one another. How to Use This Book J2EE Applications and BEA WebLogic Server contains 18 chapters, each of which covers a phase of devel-oping Web-based applications using J2EE and WebLogic Server. Each chapter is organized around a particular Java Enterprise technology that you use to create a component of the WebAuction applica-tion, an online auction site that functions as the core example set for this book. The discussion of EJBs, which are the major players in J2EE application development, spans three chapters. Each chapter notes where an application module fits in an overall application design; how to plan for efficient implementation; the specifics of the example implementation; and recommenda-tions for best practices that can guide the implementation of a similar component at your site. The Enterprise Java APIs and associated APIs that are part of the J2EE specification are dis-cussed in this book in the approximate order in which a developer might use them. However, each technology is described and illustrated without depe