2. Using the Tutorial Examples
3. Getting Started with Web Applications
Troubleshooting Duke's Bookstore Database Problems
Handling Servlet Life-Cycle Events
Specifying Event Listener Classes
Controlling Concurrent Access to Shared Resources
Getting Information from Requests
Filtering Requests and Responses
Programming Customized Requests and Responses
Including Other Resources in the Response
Transferring Control to Another Web Component
Associating Objects with a Session
Notifying Objects That Are Associated with a Session
Notifying Methods to Shut Down
Creating Polite Long-Running Methods
Further Information about Java Servlet Technology
5. JavaServer Pages Technology
7. JavaServer Pages Standard Tag Library
10. JavaServer Faces Technology
11. Using JavaServer Faces Technology in JSP Pages
12. Developing with JavaServer Faces Technology
13. Creating Custom UI Components
14. Configuring JavaServer Faces Applications
15. Internationalizing and Localizing Web Applications
16. Building Web Services with JAX-WS
17. Binding between XML Schema and Java Classes
19. SOAP with Attachments API for Java
21. Getting Started with Enterprise Beans
23. A Message-Driven Bean Example
24. Introduction to the Java Persistence API
25. Persistence in the Web Tier
26. Persistence in the EJB Tier
27. The Java Persistence Query Language
28. Introduction to Security in the Java EE Platform
29. Securing Java EE Applications
31. The Java Message Service API
32. Java EE Examples Using the JMS API
36. The Coffee Break Application
37. The Duke's Bank Application
A servlet is a Java programming language class that is used to extend the capabilities of servers that host applications accessed by means of a request-response programming model. Although servlets can respond to any type of request, they are commonly used to extend the applications hosted by web servers. For such applications, Java Servlet technology defines HTTP-specific servlet classes.
The javax.servlet and javax.servlet.http packages provide interfaces and classes for writing servlets. All servlets must implement the Servlet interface, which defines life-cycle methods. When implementing a generic service, you can use or extend the GenericServlet class provided with the Java Servlet API. The HttpServlet class provides methods, such as doGet and doPost, for handling HTTP-specific services.
This chapter focuses on writing servlets that generate responses to HTTP requests.
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