How to use Tag Library Descriptor (TLD) files - JSP Tutorial

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Using TLD files

Topic

How to use Tag Library Descriptor file in JSP?

Explanation

In a JSP page the classes to be used are included from a "tld" file using the tags. Tags with the "prefix" of a paticular tld file, along with the class name are used in a JSP page.

Example:

    <%@ taglib  uri="WEB-INF/tlds/mytag.tld" prefix="sample" %>
    <html>
    <head>
       <title>Your Standard Hello World Demo</title>
    </head>
    <body bgcolor="#ffffff">
    <hr/>
       <sample:hello name="hello1"/>
       <sample:enc name="encrypt1"></sample:enc>
    <hr/>
    </body>
    </html>

Result:

    Welcome hello1
    Your Encrypted Password is=encrypt1c3a6478ff5ff7a243a53251ea5faf5

In the above Tag Library Descriptor example, the file "uri="WEB-INF/tlds/mytag.tld"" point to the tag library "mytag.tld". The prefix "sample" is used to refer this tag library. To display a "Hello1" message the class "Hello.java" is included in the JSP using this code "<sample:hello name="hello1"/>". The encrypted value of the password is displayed using the "Encrypt.java".

A Note

JSP(Java Server Pages) is one of the most used Server Side Programming Language in the world. Simple introduction, basic program codes with examples. Begin coding your own JSP scripts with this online tutorial. Hope you enjoy this tutorial. Do send your feedback or suggestions on this JavaServer Pages tutorial. This is a copyright content.

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