Ending session when Logging out in JSP -


following navigation bar include logout button page.

i want end session when user click logout button.

i found sample codes googling , added code following code shows error.(check error in screenshot)

<div class="collapse navbar-collapse" id="bs-example-navbar-collapse-1">    <ul class="nav navbar-nav navbar-right">       <li class="dropdown">       <a href="#" class="dropdown-toggle" data-toggle="dropdown">hi, <%=session.getvalue("username") %><b class="caret"></b></a>       <ul class="dropdown-menu">         <li align="center" class="well">              <a href="index.jsp" class="btn btn-sm btn-default"><span class="glyphicon glyphicon-log-out"></span> logout</a>             <%             session.invalidate();             response.sendredirect("index.jsp");             %>         </li>        </ul>     </li>   </ul> </div><!-- /.navbar-collapse -->

help me correct code..

enter image description here

by default, session created container if session not available. jsp use avoid create new session:

<%@ page session="false" %>

before accessing session variables check session if available not. without session, if call session object methods raise illeagalstateexcetion.

   <% if (session!=null) {%>      <%=session.getvalue("username") %><b class="caret"></b></a>    <% } %>

the session getting invalidated every time page loads, not clicking on logout. clicking on logout put separate page invalidate session.

here ma using logout.jsp, contains session invalidation code:

 <!-- not creating new session -->  <%@ page session="false" %>   <body>      <%      // checking session available or not, if not available throw exception, "session invalidated."       if (sesssion!=null) {         session.invalidate();         response.sendredirect("index.jsp");       }      %>  </body>

and change logout link following:

<a href="logout.jsp" class="btn btn-sm btn-default"><span class="glyphicon glyphicon-log-out"></span> logout</a>

give try :)


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