Using TLD files
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".