nTier's Introduction to JSP and Servlets training course develops skills in JavaServer Pages, or JSP, which is the standard means of authoring dynamic content for Web applications under the Java Enterprise platform. It treats JSP 2.0, including older features such as scriptlets but focusing on newer features and techniques, including JSP expressions and the JSTL. This course develops the important concept of the separation of programmatic and declarative development: use of configuration and context information in lieu of hard-coded values, resource locations, etc., to make the Web application as portable and easy to administer as possible. The course introduces JavaBeans as a standard for business and data objects that can be shared among servlets and JSPs, and develops techniques for sharing such objects at session scope or by request forwarding. Finally, students learn how to implement filters to adapt existing servlets by pre- and post-processing the request and response.
At the end of the course, students will be well prepared to author JSPs for small- or large-scale Web applications, either "by hand" (they use only a text editor in class) or using an authoring tool.
The first module begins with an introduction of Web applications in general, shows how Java servlets and JSPs establish a framework for writing Web applications, and then covers JSP 2.0 features in detail, from scripting elements to use of dedicated JavaBeans to JSP expressions, and quick introductions of JSTL and custom tag development. By the end of the module students will be able to create their own JSP applications, including interactive applications using HTML forms and pages that perform fairly complex processing using scripts and or actions. Although scripting is covered, the scriptless authoring style encouraged by the JSP 2.0 specification is emphasized, and students will be well equipped to develop concise and effective JSP applications. The second module covers the JSTL, or JSP Standard Tag Library, actually a set of four custom tag libraries that establish a portable standard for common processing tasks in JSP. JSTL is a major part of the new scriptless authoring style encouraged (and enabled) by the JSP 2.0 specification. This module covers all four JSTL libraries in depth:
· The core actions, which support JSP expressions for JSP 1.x containers, flow control for procedural processing in JSPs, and resource access.
· The formatting and internationalization/localization actions, which standardize formatted numeric and date/time output as well as multi-language support. * The SQL actions, which dramatically simplify access to relational data from a JSP.
The XML actions, which give JSPs a simple, powerful framework by which to parse, address and transform XML data using XPath and XSLT. Each individual tag in each library is covered, with precise syntactic rules shown in a standard format in the student guide, and JSTL techniques and best practices are discussed for each library. An extensive set of example applications illustrates common usage of each major group of actions, and the module culminates with a wrap-up workshop that brings core, SQL, and XML techniques to bear in a single application.
Explain the fundamentals of HTML and HTTP in the World Wide Web.
Describe JavaServer Pages and their relationship to servlets and J2EE generally.
Describe how a JSP is translated into a servlet and processed at runtime.
Explain the use of directives on JSPs and outline the principal directives.
Implement simple JSPs that use Java code in declarations, expressions and scriptlets.
Enumerate and use the implicit objects available to scripting elements.
Implement an interactive Web application using HTML forms and JSP.
Use Java exception handling and JSP error pages to handle errors in JSP applications.
Implement session management for a JSP application.
Manage cookies to store client-specific information at various scopes and durations.
Use JavaBeans to implement effective interactive JSP applications.
Describe custom tags in JSP and explain how they are implemented, both using Java and JSP itself, and how they are used.
Discuss threading issues in JSP and describe the use of directives to control how threading is handled.
Describe the various uses of XML in JSP applications.
Deploy a logical Web application to a Web server in a WAR file.
Describe the use of the JSP expression language to simplify dynamic page output.
Write JSP expressions and implement JSPs that use them in favor of scripts.
Implement JSPs that use basic JSTL actions to simplify presentation logic.
Decompose a JSP application design into fine-grained, reusable elements including JavaBeans, custom tag handlers and tag files that use JSTL.
Use core JSTL actions to complement standard actions, custom actions, and
JSP expressions for seamless, script-free page logic.
Direct conditional and iterative processing of page content by looping through ranges of numbers, over elements in a collection, or over tokens in a master string.
Set locale and time zone information in JSPs, and use them to correctly format numbers, dates and times for all clients.
Use resource bundles to manage application strings, and produce the appropriate strings at runtime for a particular client locale.
Locate a data source, query for relational data, and parse result sets.
Perform updates, inserts and deletes on relational data using SQL actions.
Manage queries and updates in transaction contexts.
Derive information from parsed XML content using XPath expressions.
Implement conditional processing and loops based on XML information.
Apply XSLT transformations to XML content.
Implement a simple Web service that reads and writes SOAP.
Understand and appreciate the role of Java Servlets in the overall Java 2 Enterprise Edition architecture, and as the best Java solution to HTTP application development.
Use request and response objects provided to a servlet to read CGI parameters and to produce an HTML response.
Develop interactive Web applications using HTML forms and servlets.
Manage complex conversations with HTTP clients using session attributes.
Understand the role of JDBC in Java persistence code, and use JDBC for persistence in servlet applications.
Preserve portability and ease of administration for a servlet application by parameterizing servlet code, using initialization parameters, properties files, and JNDI.
Use JavaBeans classes to share complex business data between components.
Implement filters to adapt existing servlets with new features, and to maximize the decomposition of logic between vertical business functions and horizontal facilities.
JSP Training Prerequisites
Java programming experience is required. Knowledge of HTML and background in Web applications, and/or Java programming experience, are helpful but not necessary.
Module 1. Introduction to JavaServer Pages
Web Applications
The World Wide Web
HTML Web Servers
HTTP
Dynamic Web Pages
CGI
Java Web Technologies
Servlets
JSP
JSP Architecture
JSP Containers
Servlet Architecture
Page Translation
Types of JSP
Content Directives
Content Type
Buffering
Scripting Elements
JSP Expressions
Standard Actions
Custom Actions and JSTL
Objects and Scopes
Implicit Objects
JSP Lifecycle
Scripting Elements
Translation of Template
Content Scriptlets
Expressions Declarations
Dos and Don'ts
Implicit Objects for Scriptlets
The request Object
The response Object
The out Object
Interactive JSP Applications
HTML Forms
Reading CGI Parameters
JSPs and Java Classes
Error Handling
Session Management
The Session API
Cookies and JSP
Using JavaBeans
Separating Presentation and Business Logic
JSP Actions
JavaBeans
Working with Properties and Using Form Parameters with Beans
Objects and Scopes
Working with Vectors
The Expression Language and the JSTL
Going Scriptless
The JSP Expression Language EL
Syntax Type Coercion
Error Handling
Implicit Objects for EL
The JSP Standard Tag Library
Role of JSTL
The Core Actions
Using Beans with JSTL
The Formatting Actions
Scripts vs. EL/JSTL
Advanced JSP Features
Web Components
Forwarding
Inclusion
Passing Parameters
Custom Tag Libraries
Tag Library Architecture
Implementing in Java or JSP
Threads
Strategies for Thread Safety
XML and JSP
JSP for Web Service
Effective JSTL
The JSP Standard Tag Library
JSTL Namespaces
Going Scriptless
Object Instantiation
Sharing Objects
Decomposition
Parameterization
The Core Actions
The JSTL Core Library
Gotchas
Conditional Processing
Iterative Processing
Iterating Over Maps
Tokenizing Strings
Catching Exceptions
Resource Access
The Formatting and i18n Actions
The JSTL Formatting Library
Locales
Determining Locale Time Zones
Setting Locale and Time Zone
Formatting and Parsing Dates
Formatting and Parsing Numbers
Internationalization
Working with Resource Bundles
Supporting Multiple Languages
The SQL Actions
The JSTL SQL Library
Using Relational Data
Connecting with a DriverManager
Connecting via a DataSource
The Result Interface
Making a Query
Inserts, Updates and Deletes
Parameterized SQL Transactions
The XML Actions
The JSTL XML Library
Using XML
XML Data Sources
Parsing and Addressing
Using XPath in JSTL
XPath vs. EL
XPath Context
Implicit Objects for XPath
Conditional Processing
Iterative Processing
Changing XPath Context
Working with XML Namespaces
Using XSLT Chaining Transformations
Reading XML from the Request Body
XML and SOAP Web Services
Servlets
Architecture Servlets
Architecture Servlet and HttpServlet
Request and Response
Reading Request Parameters
Producing an HTML Response
Redirecting the Web Server
Deployment Descriptors
Servlets Life Cycle
Relationship to the Container
Interactive Web Applications
Building an HTML Interface
HTML Forms
Handling Form
Input Application Architecture
Single-Servlet Model
Multiple-Servlet Model
Routing Servlet Model
Template Parsers
Session Management
Managing Client State Sessions
Session Implementations
HttpSession Session
Attributes
Session Events
Invalidating Sessions
Database Access
JDBC
JDBC Drivers
Using JDBC in a Servlet
Data Access Objects
Threading Issues
Transactions
Connection Pooling
Configuration and Context
The Need for Configuration
Initialization Parameters
Properties
Files
JNDI and the Component Environment
JDBC Data Sources
Working with XML Data
Filters
Servlet Filters
Uses for Filters
Building a Filter
Filter Configuration and Context Filter Chains
Deploying Filters