The Jakarta Standard Tag Library (JSTL; formerly JavaServer Pages Standard Tag Library) is a component of the

Java EE Jakarta EE, formerly Java Platform, Enterprise Edition (Java EE) and Java 2 Platform, Enterprise Edition (J2EE), is a set of specifications, extending Java SE with specifications for enterprise features such as distributed computing and web serv ...

Web application A web application (or web app) is application software that is accessed using a web browser. Web applications are delivered on the World Wide Web to users with an active network connection. History In earlier computing models like client-serve ...

development platform. It extends the JSP specification by adding a

tag library Jakarta Server Pages (JSP; formerly JavaServer Pages) is a collection of technologies that helps software developers create dynamically generated web pages based on HTML, XML, SOAP, or other document types. Released in 1999 by Sun Microsystems, ...

of JSP tags for common tasks, such as

XML Extensible Markup Language (XML) is a markup language and file format for storing, transmitting, and reconstructing arbitrary data. It defines a set of rules for encoding documents in a format that is both human-readable and machine-readable. T ...

data processing, conditional execution,

database In computing, a database is an organized collection of data stored and accessed electronically. Small databases can be stored on a file system, while large databases are hosted on computer clusters or cloud storage. The design of databases sp ...

access, loops and

internationalization In economics, internationalization or internationalisation is the process of increasing involvement of enterprises in international markets, although there is no agreed definition of internationalization. Internationalization is a crucial strateg ...

. JSTL was developed under the

Java Community Process The Java Community Process (JCP), established in 1998, is a formalized mechanism that allows interested parties to develop standard technical specifications for Java technology. Anyone can become a JCP Member by filling a form available at thJCP w ...

(JCP) as

Java Specification Request The Java Community Process (JCP), established in 1998, is a formalized mechanism that allows interested parties to develop standard technical specifications for Java technology. Anyone can become a JCP Member by filling a form available at thJCP w ...

(JSR) 52. On May 8, 2006, JSTL 1.2 was released, followed by JSTL 1.2.1 on Dec 7, 2011. JSTL provides an effective way to embed logic within a JSP page without using embedded

Java Java (; id, Jawa, ; jv, ꦗꦮ; su, ) is one of the Greater Sunda Islands in Indonesia. It is bordered by the Indian Ocean to the south and the Java Sea to the north. With a population of 151.6 million people, Java is the world's List ...

code directly. The use of a standardized tag set, rather than breaking in and out of Java code, leads to more maintainable code and enables

separation of concerns In computer science, separation of concerns is a design principle for separating a computer program into distinct sections. Each section addresses a separate '' concern'', a set of information that affects the code of a computer program. A concern ...

between the development of the application code and

user interface In the industrial design field of human–computer interaction, a user interface (UI) is the space where interactions between humans and machines occur. The goal of this interaction is to allow effective operation and control of the machine f ...

. There are a total of six JSTL tag library descriptors: * Core library. E.g. and * i18n-capable formatting library * * Database tag library, contains tags for querying, creating and updating database table. * XML library * functions library * TLVs allow translation-time validation of the XML view of a JSP page. The TLVs provided by JSTL allow tag library authors to enforce restrictions regarding the use of scripting elements and permitted tag libraries in JSP pages. In addition to JSTL, the JCP has the following JSRs to develop standard JSP tag libraries:
JSR 128
JESI – JSP Tag Library for

Edge Side Includes Edge Side Includes (ESI) is a small markup language for edge level dynamic web content assembly. The purpose of ESI is to tackle the problem of web infrastructure scaling. It is an application of edge computing. It is fairly common for websites t ...

(inactive)
JSR 267
JSP Tag Library for Web Services

References

External links

*
JSTL TLDDocs

JSR 52
(JSTL 1.0, 1.1, and 1.2)

an implementation of JSTL (retired)
Apache Standard Taglib
an implementation of the JSP Standard Tag Library (JSTL) specification

JSTL 1.2 home page

* ttp://docs.oracle.com/javaee/5/jstl/1.1/docs/tlddocs/ JSTL 1.1 References
JSF 2.1 Facelets Tag Library Documentation
re
Java EE Technical Documentation
/ref>

(as JSTL does not offer any tags for website security) {{Jakarta EE Java enterprise platform Java specification requests

See also

References

External links