Using JSTL

JSTL includes a wide variety of tags that fit into discrete functional areas. To reflect this, as well as to give each area its own namespace, JSTL is exposed as multiple tag libraries. The URIs for the libraries are as follows:

Core: http://java.sun.com/jsp/jstl/core
XML: http://java.sun.com/jsp/jstl/xml
Internationalization: http://java.sun.com/jsp/jstl/fmt
SQL: http://java.sun.com/jsp/jstl/sql
Functions: http://java.sun.com/jsp/jstl/functions


AreaSubfunctionPrefix
CoreVariable support
Flow control
URL management
Miscellaneous
c
XMLCore
Flow control
Transformation
x
I18NLocale
Message formatting
Number and date formatting
fmt
DatabaseSQLsql
FunctionsCollection length
String manipulation
fn

<%@ taglib uri="http://java.sun.com/jsp/jstl/core" prefix="c" %>

In the Application Server, the JSTL TLDs and libraries are distributed in the archive

as-install/lib/appserv-jstl.jar.

This library is automatically loaded into the classpath of all web applications running on the Application Server, so you don't need to add it to your web application.

Tag Collaboration

Tags usually collaborate with their environment in implicit and explicit ways. Implicit collaboration is done by means of a well-defined interface that allows nested tags to work seamlessly with the ancestor tag that exposes that interface. The JSTL conditional tags employ this mode of collaboration.
JSTL tags expose information as JSP EL variables, the convention followed by JSTL is to use the name var for any tag attribute that exports information about the tag.

<c:forEach var="item" items="${sessionScope.cart.items}">

...
</c:forEach>

In situations where a tag exposes more than one piece of information, the name var is used for the primary piece of information being exported, and an appropriate name is selected for any other secondary piece of information exposed.


For example: tut-install/javaeetutorial5/examples/web/bookstore4/web/books/bookshowcart.jsp

removes a book from a shopping cart using a scriptlet. The ID of the book to be removed is passed as a request parameter. The value of the request parameter is first exposed as an EL variable and then is declared as a scripting variable and passed to the cart.remove method:



<% cart.remove(bookId); %>
    select * from PUBLIC.books where id = ?
    


References : oracle | oracle « Privious Post » « Next Post » share on :        :  

Love to hear your Views / Guidance / Recommendations on this Post…

Explore the Technology World

Computer Programming Terminologies Computer Programming Terminology is a general word for the group of specialized words or meanings relating to Computer Programming, and also the study of such t ...Read MoreNew features in JDK 12 with IntelliJ IDEADeveloped by JetBrains (formerly known as IntelliJ) ,IntelliJ IDEA is a Java integrated development environment (IDE) for developing computer software. It is av ...Read MoreGoogle Pay API Implementation Demo for AndroidIn this youtube Channel by Android Developers ,Learn how to implement the Google Pay API for Android with just a few lines of code and how it works with your ex ...Read MoreUnit Testing in .NET Core and Azure Devops pipelineUnit testing is a software testing method by which individual units of source code, usage procedures,sets of one or more computer program modules together with ...Read MoreThe mind behind Linux & GIT : Linus TorvaldsLinus Torvalds transformed technology twice — first with the Linux kernel, which helps power the Internet, and again with Git, the source code management ...Read MoreTensorflow and deep learningWith Tensorflow ,deep machine learning transitions from an area of research into mainstream software engineering. ...Read MoreJava program to return all possible permutations from collection of distinct numbersexample of Java program to return all possible permutations from collection of distinct numbers ...Read MoreReal Time Analytics with Spring Application Development FrameworkSpring is the most popular application development framework for enterprise Java.Millions of developers use Spring to build simple, truly portable, fast and fle ...Read MorePath Setting in Java When an application is launched from command prompt Windows OS searches for the executable program in the current working directory. The prompt throws an error ...Read MoreFacebook | whatsapp|Github | Twitter | LinkedIn | Youtube| reddit About | Cookies-Policy | Disclaimer | Site Map | Contact

Call / Visit for New Batch

Services

Why Join Us

  • ➯ Free Demo Classes
  • ➯ No Registration Fee
  • ➯ Interview Questions
  • ➯ Study Materials
  • ➯ Softwares
  • ➯ Aptitude & Reasoning
  • ➯ Placement Assitance

Address

  • MyJava Training Institute ,
  • Plot No.243 , shop No 14 ,
  • Secnd Floor , Zone-II ,
  • M.P.Nagar , Bhopal,
  • Madhya Pradesh ( 462011 )
  • ☎  08871209400 , 7987028543
  • 🌐 www.myjava.in
FacebookGoogle +TwitterYouTube

MyJava - java Training Institute