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

Installation Troubleshooting

Not all installations go flawlessly. Here, I've tried to identify the most common installation problems and have explained how to fix them. Additionally, the OpenCms website—particularly the developers' mailing-list archives—is a good resource for troubleshooting information.

Character-Set Issues

The most common sort of problem with OpenCms installations is that the character set of the Java VM and that of OpenCms do not match, which causes a number of different errors that all have messages that look something like this: 

Java VM file encoding: Cp1252
OpenCms encoding: ISO-8859-1

In almost every case, the solution is to make sure that the -Dfile.encoding=ISO-8859-1 flag is passed into the Java VM, either through the CATALINA_OPTS environment variable or by hardcoding the value into the catalina.sh (Linux/UNIX) or catalina.bat (Windows) files. If Tomcat is installed as a Windows Service, you will need to run the service uninstall/install routine I explained in...

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