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Problem while logging out,removing the session variable but while navigating through back button previously viewed pages are showing up

Posted on 2004-09-07
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Last Modified: 2010-03-31
Hai ya,

Probem: LOGOUT NOT WORKING PROPERLY,showing all previously viewed jsps.(pages)

I am designing a java web application ,using jsp,servlets and beans using model 2 architecture..
While trying to logout in web application ,it is going to login page, but we while navigating through back button, previously viewed pages are showing up, I have used removeAttribute method ,it is working fine,session variable is getting removed, But again while navigating through back button all the viewed pages are showing up. I dont know why they are not getting updated,i have written code the emptying the cache,can u please help me out in this.

here is my code in Logout.jsp..

<%@page contentType="text/html"%>
<%@page pageEncoding="UTF-8"%>

<html>
<head><title>JSP Page</title></head>
<script>
if(window.history.forward(1) != null)
                 window.history
.forward(1);
</script>
<body>
<% String re =(String)session.getAttribute("user");%>
<%
response.setHeader("Cache-Control","no-store");
response.setHeader("Pragma","no-cache");
response.setDateHeader ("Expires", 0);

 
%>
before<%=re%>
<%
session.removeAttribute("user");
%>


<% String re1 =(String)session.getAttribute("user");%>
<%
 session.invalidate();
 


String url = response.encodeURL("LoginScreen.jsp");
response.sendRedirect(url);
%>
</from>
</body>
</html>

waiting for ur reply
dushyanth
0
Comment
Question by:sdushyanth
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14 Comments
 

Author Comment

by:sdushyanth
ID: 11996204
please send me solution to this question,
thank u
dushyanth
0
 
LVL 9

Expert Comment

by:Nick_72
ID: 11996211
Try moving these lines above the <html> tag

<%
response.setHeader("Cache-Control","no-store");
response.setHeader("Pragma","no-cache");
response.setDateHeader ("Expires", 0);

 
%>
0
 
LVL 12

Expert Comment

by:Giant2
ID: 11996217
the browser back button is not governed by your code.
Yu could disable this button, so you don't care about this.
0
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LVL 12

Expert Comment

by:Giant2
ID: 11996233
0
 

Author Comment

by:sdushyanth
ID: 11997138
I dont want to disable the browser 's back button,
and

I have tried  these lines above the <html> tag

<%
response.setHeader("Cache-Control","no-store");
response.setHeader("Pragma","no-cache");
response.setDateHeader ("Expires", 0);

 
%>

but still it is not working ,
0
 

Author Comment

by:sdushyanth
ID: 11997871
Hai ya,

Probem: LOGOUT NOT WORKING PROPERLY,showing all previously viewed jsps.(pages)

I am designing a java web application ,using jsp,servlets and beans using model 2 architecture..
While trying to logout in web application ,it is going to login page, but we while navigating through back button, previously viewed pages are showing up, I have used removeAttribute method ,it is working fine,session variable is getting removed, But again while navigating through back button all the viewed pages are showing up. I dont know why they are not getting updated,i have written code the emptying the cache,can u please help me out in this.

here is my code in Logout.jsp..

<%@page contentType="text/html"%>
<%@page pageEncoding="UTF-8"%>

<html>
<head><title>JSP Page</title></head>
<script>
if(window.history.forward(1) != null)
                 window.history
.forward(1);
</script>
<body>
<% String re =(String)session.getAttribute("user");%>
<%
response.setHeader("Cache-Control","no-store");
response.setHeader("Pragma","no-cache");
response.setDateHeader ("Expires", 0);

 
%>
before<%=re%>
<%
session.removeAttribute("user");
%>


<% String re1 =(String)session.getAttribute("user");%>
<%
 session.invalidate();
 


String url = response.encodeURL("LoginScreen.jsp");
response.sendRedirect(url);
%>
</from>
</body>
</html>

waiting for ur reply
dushyanth

0
 
LVL 92

Accepted Solution

by:
objects earned 2000 total points
ID: 12001379
0
 
LVL 9

Expert Comment

by:Nick_72
ID: 12003780
sdushyanth,

try using addHeader() instead of setHeader()
0
 
LVL 1

Expert Comment

by:jLasitha
ID: 12004223
Check the session in all pages.if the seesion null redirect it to tha loggin page
<% if( session.getAttributr("user") == null ){
      response.senRedirect("LoginScreen.jsp");
}
%>
Put this in all pages as a header
0
 
LVL 12

Expert Comment

by:Giant2
ID: 12200679
I think a delete with point not refund because some solution were done, but sdushyanth not accept any of them(for now).
0
 
LVL 92

Expert Comment

by:objects
ID: 12204570
the code in the link I posted fixed the same problem in that question.
0

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