How to set result of a java expression in a property in JSP?
The <c:set> tag is JSTL-friendly version of the setProperty action. The tag is helpful because it evaluates an expression and uses the results to set a value of a JavaBean or a java.util.Map object.
Attribute
The <c:set> tag has the following attributes −
| Attribute | Description | Required | Default |
|---|
| Value | Information to save | No | body |
| target | Name of the variable whose property should be modified | No | None |
| property | Property to modify | No | None |
| var | Name of the variable to store information | No | None |
| scope | Scope of variable to store information | No | Page |
If target is specified, property must also be specified.
Example
<%@ taglib uri = "http://java.sun.com/jsp/jstl/core" prefix = "c" %>
<html>
<head>
<title><c:set> Tag Example</title>
</head>
<body>
<c:set var = "salary" scope = "session" value = "${2000*2}"/>
<c:out value = "${salary}"/>
</body>
</html>The above code will generate the following result −
4000
Published on 22-Mar-2019 14:29:22
