Book Image

Building Websites with OpenCms

Book Image

Building Websites with OpenCms

Overview of this book

This book takes you through the process of creating content-rich websites and applications using OpenCms. Although powerful and flexible, OpenCms can be daunting on first approach, but its advanced features reward the investment in learning. This book exists to ease Java developers into getting the most from OpenCms. OpenCms OpenCms is a professional-level, open source Website Content Management System, with which you can create and manage complex websites. Based on Java and XML technology, it fits into almost any modern IT environment. With hard-won experience of the practical difficulties faced by developers working with OpenCms, this book is the embodiment of the author's expertise, and the perfect way to master the system.

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Building Websites with OpenCms
Jul, 2004 | 276 pages
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Table of Contents (12 chapters)
Building Websites with OpenCms
Building Websites with OpenCms
Credits
Credits
About the Author
About the Author
Introduction
Introduction
Free Chapter
1
Introduction to OpenCms
Introduction to OpenCms
What Is a Content Management System?
What Is OpenCms?
The Purpose of This Book
Technical Overview
Summary
2
Installing OpenCms
Installing OpenCms
Prerequisites
Installing the OpenCms WAR File
Configuring the Client
Installation Troubleshooting
Summary
3
The OpenCms Workplace
The OpenCms Workplace
A Tour of the OpenCms Workplace
The Explorer View
Creating and Editing Content
Publishing Your Changes
Administration
Workflow
Modules
Summary
4
Customizing the Site
Customizing the Site
Overview of Creating a Site
Working with Templates and Tags
JSP Tag Libraries and Scriptlets
The FlexCache
Internationalization
Summary
5
The OpenCms System Architecture
The OpenCms System Architecture
Resource Types
Content Definitions
The Virtual File System
Class Structure
Summary
6
Creating an OpenCms Module
Creating an OpenCms Module
Using Modules
Creating a Module
Custom Classes and Libraries
Adding Content
Adding a Scheduled Task
Managing the Module
Exporting and Deploying the Module
Summary
7
Advanced Modules
Advanced Modules
Adding an Administration Point
Creating an Administration JSP
XML Templates
Creating a Custom Launcher
Master Modules
Summary
8
Deploying an OpenCms Solution
Deploying an OpenCms Solution
Serving Static versus Dynamic Content
Static Export
Web User Authentication and Management
Backup and Recovery
Performance Tuning
Other Resources
Summary

XML Templates

In OpenCms 5.0, XML templates play a minor role in a number of tasks, but there is one area in which they are still quite dominant. The majority of the Workplace is still implemented using XML templates. In the next major release of OpenCms, the core system will not make use of XML templates at all, and OpenCms developers have announced that they intend to relegate all of the XML template support code to a separate module that can be used for supporting legacy applications.

With this in mind, I will provide just a cursory overview of the XML template mechanism—enough to provide the developer with the tools necessary to interact with, fix, or modify existing code. If you find that you need to use XML templates more extensively, the OpenCms website (http://www.opencms.com) has documents that explain the template mechanism in detail.

How XML Templates Work

Essentially, there are three XML template types used for rendering a page:

  • The frametemplate defines the structure of the page...

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