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JSTL c:param Core Tag

The JSTL <c:param> Core Tag is used with <c:url> and <c:redirect> tags to add the parameters.

Syntax:

<c: param name =”paramName” value=”paramValue” />

c:param tag attributes:

AttributeDescriptionRequired
nameIt specify the name of the request parameter to set in the URL.Yes
valueIt specify the value of the request parameter to set in the URL.No

Example:

test.jsp

<%@ taglib uri="http://java.sun.com/jsp/jstl/core" prefix="c" %>
 
<html>
	<head>
		<title>c:param JSTL core tag example</title>
	</head>
	<body>
		<c:url value="/hello.jsp" var="helloUrl">
			<c:param name="userName" value="jai"></c:param>
		</c:url>
		<h4><a href="${helloUrl}">Click here</a></h4>
	</body>
</html>

hello.jsp:

<%@ taglib uri="http://java.sun.com/jsp/jstl/core" prefix="c" %>
 
<html>
	<head>
		<title>c:param JSTL core tag example</title>
	</head>
	<body>
		<h3>This is a c:param JSTL core tag example.</h3>
		UserName: <%= request.getParameter("userName")%>
	</body>
</html>

web.xml

<web-app>
 
  <welcome-file-list>
          <welcome-file>test.jsp</welcome-file>
  </welcome-file-list>	
 
</web-app>

Output:

jsp example 41 first
 
Click on the link.
jsp example 41 second
 
Download this example.
 
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