This 2-day course covers Java servlet programming. Prior to Java servlets, dynamic content from your Web server was accomplished by CGI and proprietary APIs. This course details a third way - the Java Servlet Development Kit (JSDK). The JSDK lets you extend a Java-enabled Web server with servlets, server-side components written in Java. These components are platform and protocol independent. Servlets can be used to replace CGI, process forms, interact with the database or as a middle tier in a three-tiered architecture.

LEARNING OBJECTIVES

• Understand the relationship between Clients, Servers, and Servlets;
• Understand how and when a servlet is loaded, and how and when it is executed;
• Understand the way a servlet can extend the services of a server;
• Understand the request/response paradigm as it relates to servlets;
• Write servlets that process HTML form data;
• Write servlets that are thread safe;
• Write servlets that can communicate with one another;
• Understand how a servlet can generate HTML, return errors, redirect requests, and write data to the server log; and,
• Understand how servlets maintain state and session information

Course Duration: 2 days

Prerequisites: Experience with fundamental Java programming.

1. Introduction

Servlets
The HTTP protocol
The request/response paradigm
HTTP methods
Servlet Classes
A Simple Servlet
Preparing the Servlet
Creating your Web Application
Starting the Server
Running DateServlet
Servlet Engines
Processing HTML form data with a servlet
The Servlet Life Cycle

2. Handling Request Information

Request Information
HttpServletRequest
Processing POST Data
Initialization Parameters
JSWDK Initialization Parameters
Server Information
Extra Path Information
What Was Requested?

3. Generating Http

Servlet Responses
Status Codes
Writers and Streams
Content Type
Keep-Alive Connections
Automatic HTML generation
Additional Response headers
Server Redirection
Client Pull
Error Handling
SendError
Logging Errors

4. Threads And Servlets

Thread
Synchronization
Locks
Terminology
wait() and notify()
Threads and Servlets
SingleThreadModel

5. Session Management

Cookies
Sessions
The HTTP Protocol Problem
Session IDs
Session Management using the Servlet API
Invalidating Sessions

6. Servlet Communication

ServletContext
Saving the State of a Servlet
Using Property Lists
Using Attributes
Using a Shared Object
Servlet Chaining

Preview
Basics
Formatting Basics
Links
Forms

Java Server Pages
Syntax of JSP
JSP Bean Example

Client/Server Architectures
JDBC
A JDBC Query
A Servlet with JDBC