Java Programming: Developing Java Web Applications

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About this class

Java servlets and JavaServer Pages allow developers to leverage the power of the Java platform and create object-oriented, scalable, n-tier applications. In this course, you learn how to integrate key components of the Java Enterprise Edition (Java EE), including servlets and JSP technologies to create dynamic data-driven Web applications.

Hands-on Training

Throughout this course, extensive hands-on exercises provide you with practical experience in developing Java Web applications, including:

• Installing and configuring a servlet/JSP server
• Accessing databases with servlets
• Personalising a Web site using sessions
• Building a shopping cart application
• Leveraging reusable components and Java Server Pages
• Integrating JSP custom tags
• Developing MVC components using the Struts framework
• Deploying Web applications using the WAR file format

Who will the lesson benefit?

Those involved in developing Web applications with Java. Knowledge of Java at the level of Course 471, "Java Programming Comprehensive Introduction", plus real-world Java programming experience, is assumed. Knowledge of Web technologies and HTML is helpful.

What delegates will learn

You Will Learn How To

• Build data-driven Web applications with server-side Java technologies
• Add a Web interface to your databases using Java servlets
• Generate dynamic Web pages with JavaServer pages (JSP)
• Personalise content for users with cookies and sessions using the Java Servlet API
• Integrate JSP custom tags to minimise scriptlet code
• Create Web applications using the Struts framework

Contents of this class

Introduction and Overview

Web application development

• The requirements of a Web application
• Components of an n-tier architecture

Key components of Java EE for Web development

• Servlets
• JSP
• XML

Generating Content with Servlets

Getting started with servlets

• Integrating servlets into the Web application architecture
• Configuring the servlet development environment
• Avoiding common servlet pitfalls

Utilising the Java Servlet API

• Servlet life cycle methods
• Accessing servlet environment variables

Creating Web-based forms for user input

• Adding text fields and drop-down lists
• Linking forms to servlets
• Retrieving form data in the servlet

Accessing Databases with Servlets

Extending servlets with Java Database Connectivity (JDBC)

• Connecting to the database
• Submitting SQL statements
• Retrieving and processing data

Formatting database results

• Constructing an HTML table
• Adding drill-down features

Maintaining State in Java Web Applications

Reading and writing cookies to personalise Web content

• Retrieving cookies from a client request
• Sending cookies to the client
• Circumventing cookie limitations

Managing application state with sessions

• Creating a unique session for each user
• Storing and retrieving Java objects within sessions
• Controlling a session's life span
• Creating application and session event listeners
• Implementing a shopping cart

Creating JavaServer Pages (JSP)

JSP fundamentals

• Design goals of JSP
• Using JSP scriptlets, expressions and declarations
• Communicating with the client using built-in JSP server objects
• Leveraging the JSP 2 Expression Language (EL)

State management with JSP

• Accessing cookies and sessions
• Storing common application data

Designing JSP and Servlet Architectures

Integrating JSP and JavaBeans

• Promoting object reuse
• Separating application logic from the presentation

Calling JSP from servlets

• Forwarding Java objects to JSP
• Using JavaBeans to transfer data
• Servlet and JSP design patterns

Integrating JSP Custom Tags

Leveraging the Tag Extension mechanism

• The role of JSP custom tags
• Applying the JSP Standard Tag Libary (JSTL)

Developing custom tags

• Creating custom tags with JSP 2 tag files
• Customising tag behaviour with attributes

Developing Struts 1 Applications

Struts 1 framework overview

• Components of the Struts framework
• Model-View-Controller (MVC) architecture

Developing Struts components

• Building the JavaBean model
• Presenting a view with JSP
• Dispatching actions with the controller

Deploying Your Java Web Application

• Defining the deployment descriptor
• Creating a Web Application Archive (WAR) file
• Adding role-based application security

Java Programming: Developing Java Web Applications / 570

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