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 :)


-

Comments

Post a Comment

Popular posts from this blog

c# - Binding a comma separated list to a List<int> in asp.net web api -

the default binder in web api expecst http://url.com/webapi/report/?pageids=3243&pageids=2365 to bind public ihttpactionresult report(list<int> pageids){ // exciting webapi code} i wish bind http://url.com/webapi/report/?pageids=3243,2365 as running out of space in url get . i have created class public class commaseparatedmodelbinder : system.web.http.modelbinding.imodelbinder { public bool bindmodel(httpactioncontext actioncontext, modelbindingcontext bindingcontext) { //binding in here } } and registered in webapiconfig.cs var provider = new simplemodelbinderprovider( typeof(list<int>), new commaseparatedmodelbinder()); config.services.insert(typeof(modelbinderprovider), 0, provider); i have altered method signature use model binder so public ihttpactionresult report( [modelbinder] list<int> pageids){ // exciting webapi code} however break point in binder not being
Read more

Delphi 7 and decode UTF-8 base64 -

in delphi 7, have widestring encoded base64(that received web service widestring result) : pd94bwwgdmvyc2lvbj0ims4wij8+dqo8c3ryaw5nptiq2lpyqjwvc3ryaw5npg== when decoded it, result not utf-8: <?xml version="1.0"?> <string>طھط³طھ</string> but when decoded base64decode.org, result true : <?xml version="1.0"?> <string>تست</string> i have use encddecd unit decodestring function. the problem have using decodestring . function, in delphi 7, treats decoded binary data being ansi encoded. , problem text utf-8 encoded. to continue encddecd unit have couple of options. can switch decodestream . instance, code produce utf-8 encoded text file data: {$apptype console} uses classes, encddecd; const data = 'pd94bwwgdmvyc2lvbj0ims4wij8+dqo8c3ryaw5nptiq2lpyqjwvc3ryaw5npg=='; var input: tstringstream; output: tfilestream; begin input := tstringstream.create(data); try output := tfilestream.
Read more

html - Is there any way to exclude a single element from the style? (Bootstrap) -

so, have img logo, overlaid on div styled background-image: url("...") , , both elements inside 2 div classes .to-color , .to-overlay respectively, black transparent overlay. is there way exclude logo style given these 2 classes? here's jsfiddle example: link html , css example: - html - <div class="to-color"> <div class="to-overlay"> <div class="respo"> <div class="row"> <div class="col-xs-4 col-xs-offset-4 text-center"> <img src="http://ansonalex.com/wp-content/uploads/2011/06/google-logo-768x260.png" alt="..." class="img-responsive"> </div> </div> </div> </div> </div> - css - .to-color { background-color: #000; } .to-overlay { opacity : 0.5; } .respo { background-image: url("https://source.unsplash.com/category/objects/1600x900"); background-position: center center;
Read more