I needed this too and after searching the forums it appears lots of people ask
this question, the answer is that there is no neat solution, your best solution
is to write a javax.servlet.Filter for every page that sets some session
attribute when the user is logged in, e.g.
| public void doFilter(ServletRequest request, ServletResponse
response, FilterChain chain)
| throws IOException, ServletException
| {
|
| HttpSession session = ((HttpServletRequest)request).getSession();
| if(session.getAttribute("login_flag") == null)
| {
| session.setAttribute("login_flag", "1");
|
servletContext.getRequestDispatcher(welcomePage).forward(request, response);
| }
| else
| {
| chain.doFilter(request, response);
| }
|
| }
|
Its not nice but it works.
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