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The JSP Standard Tag Library
Version 1.1
Java Training Overview

This two-day module introduces 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.

Java Training Learning Objectives
  • 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.
  • Import external resources by URL for processing, or redirect the JSP container to an external resource to handle the current request.
  • 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.
  • Parse XML content from a variety of sources.
  • 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.
Java Training Prerequisites

Students should be well-versed in JSP page authoring. Knowledge of JSP 2.0 is a plus, but is not required; the module’s primary audience is JSP 1.x authors. "Introduction to JSP" is excellent preparation.

Java Training Course duration

2 days

Java Training Course outline

1. JSTL Overview
 
  • The JSP Standard Tag Library
  • The JSP Expression Language
  • EL Syntax
  • Type Coercion
  • Error Handling
  • Implicit Objects for EL
  • JSTL Namespaces
  • Using JSTL in a Page
  • The Core Actions
  • Going Scriptless
  • Object Instantiation
  • Sharing Objects
  • Decomposition
  • Parameterization
2. The Core Actions
 
  • The JSTL Core Library
  • <c:out>
  • <c:set>
  • Gotchas
  • Conditional Processing
  • Iterative Processing
  • Iterating Over Maps
  • Tokenizing Strings
  • Catching Exceptions
  • Resource Access
3. 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
4. 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
5. 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
Appendix A. Learning Resources

System Requirements

Hardware – minimal

  • 500 MHz, 256 meg RAM, 500 meg disk space.
Hardware – recommended

  • 1.5 GHz, 512 meg RAM, 1 gig disk space.
Operating system

  • Tested on Windows XP Professional. Course software should be viable on all systems which support the J2SE 1.4 SDK
Software

  • All free downloadable tools.


 
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