EL (Expression Language)

This chapter provides tutorial notes and example codes on EL (Expression Language). Topics include what is EL; expression types and usage; literal data and variables; EL operators; implicit objects; pageContext attributes.


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What is EL (Expression Language)

EL Expression Types and Usage

Literal Data and Named Variables

Basic Operators and Operations

Predefined Implicit Objects

Collection Elements and Object Properties

Expression Examples in Static Text

Expression Examples in Static Text - Result

EL Variables Are pageContext Attributes


Conclusions:

Table of Contents

 About This Book

 JSP (JavaServer Pages) Overview

 Tomcat Installation on Windows Systems

 JSP Scripting Elements

 Java Servlet Introduction

 JSP Implicit Objects

 Syntax of JSP Pages and JSP Documents

 JSP Application Session

 Managing Cookies in JSP Pages

 JavaBean Objects and "useBean" Action Elements

 Managing HTTP Response Header Lines

 Non-ASCII Characters Support in JSP Pages

 Performance of JSP Pages

EL (Expression Language)

 Overview of JSTL (JSP Standard Tag Libraries)

 JSTL Core Library

 JSP Custom Tags

 JSP Java Tag Interface

 Custom Tag Attributes

 Multiple Tags Working Together

 File Upload Test Application

 Using Tomcat on CentOS Systems

 Using Tomcat on macOS Systems

 Connecting to SQL Server from Servlet

 Developing Web Applications with Servlet

 Archived Tutorials

 References

 Full Version in PDF/EPUB