mthalis wrote:
i have already implemented login, logout parts using struts(jsp). But the
case is after logged out, when i press back button it is redirected to the
particular page that i was in before logged out. these are my codings, and
plz kind enough to give me reasonable answer.
//set sessions//
HttpSession session=request.getSession();
session.setAttribute("userName", userLoginForm.getName());
//verify log or not
<%
String userId=(String)session.getAttribute("userName");
if(userId != null){
%>
///if not log
<%
}
else{
response.sendRedirect("./index.jsp");
}
%>
//logout
<%
session.removeAttribute("userName");
session.invalidate();
response.sendRedirect("./welcome.jsp");
%>
Leaving the discussion about the scriptlets aside, and that this isn't
really a Struts issue...
When the user hits the "back" button if a page has been cached it will
be displayed--no server interaction, so no server interaction. Turn off
page caching--this forces the browser to go back to the server,
whereupon it will discover the user is no longer logged in, and run
the... scriptlet.
Dave
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