Contents

Title and Copyright Information

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Preface

Intended Audience

Documentation Accessibility

Organization

Related Documentation

Conventions

1 Servlet Overview

Information Sources

Servlet Information

Additional OC4J Documents

Introduction to Servlets

Advantages of Servlets

Servlets and the Servlet Container

Request Objects, Response Objects, and Filters

Session Tracking

A First Servlet Example

Hello World Code

Compiling and Deploying the Servlet

Running the Servlet

2 Servlet Development

Servlet Development Basics

Code Template

Servlet Lifecycle

Servlet Behavior

Invoking a Servlet

Action by the Servlet Container Upon Request

Invoking a Servlet by Class Name in OC4J

Configuration for Servlet Invocation in a Deployment Environment

Servlet Loading and Initialization

Servlet Sessions

Session Tracking

Session Cancellation

Session Servlet Example

Session Replication

Use of JDBC in Servlets

Database Query Servlet

Deployment and Testing of the Database Query Servlet

EJB Calls from Servlets

Local EJB Lookup Within the Same Application

Remote EJB Lookup Within the Same Application

EJB Lookup Outside the Application

3 Deployment and Configuration

Introduction to Web Application Deployment and Configuration

Web Application Modules

Overview of OC4J Deployment

Overview of Web Configuration Files

Application Assembly

Application Directory Structure

Application Build Mechanisms

Application Deployment

Configuration File Descriptions

Syntax Notes for Element Documentation

The global-web-application.xml and orion-web.xml Files

The default-web-site.xml File and Other Web Site XML Files

4 Servlet Filters

Overview of Servlet Filters

How the Servlet Container Invokes Filters

Filter Examples

Filter Example #1

Filter Example #2

Filter Example #3

A Third Party Licenses

Apache HTTP Server

The Apache Software License

Apache JServ

Apache JServ Public License