What is the purpose of taglib directive in JSP?

JSPJava 8Object Oriented ProgrammingProgramming

The taglib directive declares that your JSP page uses a set of custom tags, identifies the location of the library, and provides means for identifying the custom tags in your JSP page.

The taglib directive follows the syntax given below −

<%@ taglib uri = "uri" prefix = "prefixOfTag" >

Where the uri attribute value resolves to a location the container understands and the prefix attribute informs a container what bits of markup are custom actions.

You can write the XML equivalent of the above syntax as follows −

<jsp:directive.taglib uri = "uri" prefix = "prefixOfTag" />

When you use a custom tag, it is typically of the form <prefix:tagname>. The prefix is the same as the prefix you specify in the taglib directive, and the tag name is the name of a tag implemented in the tag library.


For example, suppose the custlib tag library contains a tag called hello. If you wanted to use the hello tag with a prefix of mytag, your tag would be <mytag:hello> and it will be used in your JSP file as follows −

<%@ taglib uri = "http://www.example.com/custlib" prefix = "mytag" %>
Published on 20-Mar-2019 10:58:12