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Getting Started with Oracle WebLogic Server 12c: Developer's Guide

Book Image

Getting Started with Oracle WebLogic Server 12c: Developer's Guide

Overview of this book

Oracle WebLogic server has long been the most important, and most innovative, application server on the market. The updates in the 12c release have seen changes to the Java EE runtime and JDK version, providing developers and administrators more powerful and feature-packed functionalities. Getting Started with Oracle WebLogic Server 12c: Developer's Guide provides a practical, hands-on, introduction to the application server, helping beginners and intermediate users alike get up to speed with Java EE development, using the Oracle application server. Starting with an overview of the new features of JDK 7 and Java EE 6, Getting Started with Oracle WebLogic Server 12c quickly moves on to showing you how to set up a WebLogic development environment, by creating a domain and setting it up to deploy the application. Once set up, we then explain how to use the key components of WebLogic Server, showing you how to apply them using a sample application that is continually developed throughout the chapters. On the way, we'll also be exploring Java EE 6 features such as context injection, persistence layer and transactions. After the application has been built, you will then learn how to tune its performance with some expert WebLogic Server tips.

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Getting Started with Oracle WebLogic Server 12c: Developer's Guide
Sep, 2013 | 374 pages
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Table of Contents (18 chapters)
Getting Started with Oracle WebLogic Server 12c: Developer's Guide
Getting Started with Oracle WebLogic Server 12c: Developer's Guide
Credits
Credits
About the Authors
About the Authors
About the Reviewers
About the Reviewers
www.PacktPub.com
www.PacktPub.com
Preface
Preface
Free Chapter
1
Overview of WebLogic Server 12c and Related Technologies
Overview of WebLogic Server 12c and Related Technologies
Introducing Oracle WebLogic Server 12c
Overview of JDK 7
Delving into Java EE 6
Other technologies in the book
The Cloud Application Foundation (CAF)
Web resources
Summary
2
Setting Up the Environment
Setting Up the Environment
About the directory structure
Installing JDK 1.7
Installing Oracle WebLogic Server
Installing Oracle Enterprise Pack for Eclipse (OEPE)
Installing MySQL
Preparing PrimeFaces
Setting up a WebLogic domain
Configuring Eclipse and OEPE
Referencing MySQL databases
Using OpenLDAP
Web resources
Summary
3
Java EE Basics – Persistence, Query, and Presentation
Java EE Basics – Persistence, Query, and Presentation
The business scenario – movie ticket system
Organizing projects in Eclipse
Creating the StoreBO project
The Store web project
Web resources
Summary
4
Creating RESTful Services with JAX-RS
Creating RESTful Services with JAX-RS
Creating Theater entities
Creating the Theater web application
Exposing RESTful Services through JAX-RS
Creating the REST client
Structuring the web application
Web resources
Summary
5
Singleton Bean, Validations, and SOAP Web Services
Singleton Bean, Validations, and SOAP Web Services
Using bean validation
Singleton session beans
Persisting an object using JPA
A brief intermission
Web services and SOAP
Web resources
Summary
6
Using Events, Interceptors, and Logging Services
Using Events, Interceptors, and Logging Services
Understanding interceptors
Using asynchronous methods
Understanding WebLogic's logging service
Events
Web resources
Summary
7
Remote Access with JMS
Remote Access with JMS
WebLogic clients
Java Messaging Service (JMS) and WebLogic
Posting messages from a standalone client
Consuming messages with an MDB
Configuring thread limits for MDBs
The Store-and-Forward client feature
Summary
8
Adding Security
Adding Security
Exploring Java SE and Java EE security
WebLogic security
Using an external LDAP server
Securing the web application
Protecting WebLogic resources
Signing up a user and OpenLDAP
Web resources
Summary
9
Servlets, Composite Components, and WebSockets
Servlets, Composite Components, and WebSockets
Overview of JavaServer Faces
Learning a few Servlet tricks
Using WebSockets
Web resources
Summary
10
Scaling Up the Application
Scaling Up the Application
Introducing the Node Manager
Defining machines
Using Cluster and Managed Servers
Configuring a software load balancer
Using a singleton service
Using Oracle Coherence
Web resources
Summary
11
Some WebLogic Internals
Some WebLogic Internals
Understanding deployment structures
Using FastSwap to reduce deployment time
Packaging modules into an application
Using the Classloader Analysis Tool (CAT)
Using RESTful management services
Web resources
Summary
Index
Index

Packaging modules into an application

First, let's define what a module is on the context at hand; apart from the usual Java EE modules deployed in WebLogic Server—our applications and shared libraries, for instance—there are modules that group server resources such as JDBC and JMS components.

When we create a data source using WebLogic's administration console, we're actually creating a module inside the domain's configuration folder. This structure is read at the server's startup procedure to configure it properly.

Tip

You can check the folder /opt/packt/domains/tickets/config/jdbc to see the JDBC modules, Ticket and Theater, defined in our server.

There are two kinds of such modules, classified according to the way they are defined: globally-scoped (also called system modules) and application-scoped. The first is the most commonly found and used module—resources are created using WebLogic's administration console or WebLogic Scripting Tool (WLST) scripts, and are available to any application...

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