JSTL Core tag - url() : Function

The <c:url> tag is used to format a URL into a string and stores it into a variable.
Tag can perform automatic rewriting of URL when necessary.
The var attribute specifies the variable that will contain the formatted URL.
The JSTL url tag is just an alternative method of writing the call to the response.encodeURL() method.
The only real advantage the url tag provides is proper URL encoding, including any parameters specified by children param tag.

Attribute:

The <c:url> tag has following attributes:

Attribute	Description	Required	Default
value	Base URL	Yes	None
context	/ followed by the name of a local web application	No	Current application
var	Name of the variable to expose the processed URL	No	Print to page
scope	Scope of the variable to expose the processed URL	No	Page

JSTL Example :

<%@ taglib uri="http://java.sun.com/jsp/jstl/core" prefix="c" %>
<html>
<head>
<title>JSTL Tag Example</title>
</head>
<body>
<a href="<c:url value="http://www.google.com"/>">Testing Google</a>
</body>
</html>

Output :

Testing Google