Set session variable using JSTL and accessing it in servlet/controller class
Question
If I set session variable using JSTL like this:
<c:set var="para" value="${CLIENT_LOGO}" scope="session" />
Then how can I access the variable "para" in a servlet/controller class?
I tried the below code variations, but none worked.
request.getAtrribute("para")
request.getSession().getAtrribute("para")
Note: I'm not looking for a solution to print the value in a jsp something like:
<c:out value="${sessionScope.para}" />
But instead, I would like to know whether any solution possible to get it in Java class.
2 answers
solution1
4 2015-05-29 11:07:43
You have to do following code in your servlet:
HttpSession session = request.getSession();
String para = session.getAttribute("para");
You can set session with JSTL
<c:set var="para" value="valueHere" scope="session" />
solution2
0 2019-06-14 11:51:43
One can solve this problem by referring to this code.
<%@ taglib prefix="c" uri="http://java.sun.com/jstl/core" %>
<html>
<body>
This JSP stores the ultimate answer in a session-scoped variable where
the other JSPs in the web application can access it.
<p />
<c:set var="theUltimateAnswer" value="${41+1}" scope="session" />
Click <a href="displayAttributes.jsp">here</a> to view it.
</body>
</html>
For displaying value
<%@ taglib prefix="c" uri="http://java.sun.com/jstl/core" %>
<html>
<head>
<title>Retrieval of attributes</title>
</head>
<body>
The ultimate answer is <c:out value="${sessionScope.theUltimateAnswer}" /> <br/>
</body>
</html>
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