Checking servlet session attribute value in jsp file
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Marta
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Published on 2012-11-30T03:09:37Z
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2012/11/30
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I have a no framework java application. It consists of jsp files for view and servlets for the business logic. I must set the user session is the servlet with a firstName parameter. In the jsp file, I need to check if my firstName parameter has a value or not. If the firstName parameter is set, I need to display some html in the jsp file. If it is not set, I need to display different html in the jsp file.
Servlet.java:
HttpSession session = request.getSession();
session.setAttribute("firstName", customer.getFristName());
String url = "/index.jsp";
RequestDispatcher dispatcher = getServletContext().getRequestDispatcher(url);
dispatcher.forward(request, response);
header.jsp:
// Between the <p> tags bellow I need to put some HTML with the following rules
// If firstName exist: Hello ${firstName} <a href="logout.jsp">Log out</a>
// Else: <a href="login.jsp">Login</a> or <a href="register.jsp">Register</a>
<p class="credentials" id="cr"></p>
What would be the best way to do this? Any help is much appreciated! Thank you in advance.
-Marta
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