Follow the links to the examples that accompany each chapter of Java Servlet Programming, 1st Edition. Note that not all examples from the book are demonstrated, only those I consider appropriate.

If you're looking for example source code, it's all available here in jservlet.zip. (ZIP files are readable with the jar program: "jar xvf jservlet.zip".) The com.oreilly.servlet example code needed to run many of the examples is available separately.

Note: Microsoft Internet Explorer users may have trouble viewing the "Source" links because IE sniffs the content of a page and if it recognizes the type (HTML, etc) IE will override the server Content-Type: text/plain setting and display the page as HTML. When this happens try "View -> Source" to view the actual page source. Don't like it? Complain to Microsoft.

Chapter 2: HTTP Servlet Basics
Chapter 3: The Servlet Life Cycle
Chapter 4: Retrieving Information
Chapter 5: Sending HTML Information
Chapter 6: Sending Multimedia Content
Chapter 7: Session Tracking
Chapter 8: Security
Chapter 9: Database Connectivity
Chapter 10: Applet-Servlet Communication
Chapter 11: Interservlet Communication
Chapter 12: Internationalization
Chapter 13: Odds and Ends

Also available: Examples from the 2nd Edition!