Disconnect with a servlet

Question

I want to disconnect from a jsp page, in order to do that, here's what I tried :

In my JSP (accueil_mobile.jsp) I got this :

<form action="b" method="POST">
      <input type="submit" value="Deconnexion" />
</form>

b refers to a SERVLET of which post's method is as follows :

public static final String VUE = "/accueil_mobile.jsp" ;
.
.
.
protected void doPost(HttpServletRequest request, HttpServletResponse response)
                throws ServletException, IOException {
       request.getSession().invalidate();
       response.sendRedirect("accueil.xhtml");
       this.getServletContext().getRequestDispatcher(VUE).forward(request, response) ;
     }

Now I expected this to invalidate the session and redirect me to accueil.xhtml, but all it does is load indifinitly the page. Why is that ?

Thanks.

Because I thought `getRequestDispatcher` is still necessary to carry the `response` object. — Akheloes, Jun 18 '13 at 23:57

score 0 · Answer 1 · answered Jun 18 '13 at 23:49

0

Try to remove

this.getServletContext().getRequestDispatcher(VUE).forward(request, response) ;

You are trying to use redirect and forward at the same time.

answered Jun 18 '13 at 23:49

Alex

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Removed it, the behavior remains. – Akheloes Jun 18 '13 at 23:57
You should use full path for redirection. I think you don't have access directly to accueil.xhtml. Try to redirect to servlet related to this page, for example. – Alex Jun 19 '13 at 00:02
The two pages are in the same folder. Plus, to `.xhtml` to which I redirect has no servlet, it's a JSF page. – Akheloes Jun 19 '13 at 00:06

score 0 · Answer 2 · answered Jun 19 '13 at 01:52

0

You need to change for the view and not the external URL, get rid of the sendRedirect :

public static final String VUE = "/accueil_mobile.xhtml" ;

protected void doPost(HttpServletRequest request, HttpServletResponse response)
            throws ServletException, IOException {
    request.getSession().invalidate();
    //response.sendRedirect("accueil.xhtml");
    request.getRequestDispatcher(VUE).forward(request, response) ;
}

answered Jun 19 '13 at 01:52

Alexandre Lavoie

8,711
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You mean like this `this.getServletContext().getRequestDispatcher("/accueil.xhtml").forward(request, response) ;` ? If so, it doesn't work either. One question : is it necessary that the page to which I'll redirect possess a servlet of its own ? I have a feeling that the problem is the I am trying to pass from a jsp page to an .xhtml page. – Akheloes Jun 19 '13 at 07:44
Apparently that's no problem as this thread explain it's doable [Here](http://stackoverflow.com/questions/11223556/can-we-dispatch-request-to-an-html-inside-servlet) – Akheloes Jun 19 '13 at 07:47
Well if you are redirecting to a JSF page, you need the view name (`accueil.xhtml` or `accueil_mobile.xhtml` ...) from a servlet there is no problem doing that. I'm just not sure if you really are configured in JSF or JSP. – Alexandre Lavoie Jun 19 '13 at 10:22
_"Configured in JSF or JSP"_, didn't get this one. – Akheloes Jun 19 '13 at 10:34
Your real files are ending with `.xhtml` or `.jsp`? Do you have a `Faces Servlet` servlet mapping in `web.xml`? – Alexandre Lavoie Jun 19 '13 at 10:42
Oh that. Well, my project is basically a JSF one, but I needed few JSP page, so added them. – Akheloes Jun 19 '13 at 10:43
I've not done JSP since a while, so probably the `VUE` should be `.jsp` if it is so in your file system, ortherwise, `.xhtml` (depending if it is a JSP or JSF page). – Alexandre Lavoie Jun 19 '13 at 10:45
Expected that, maybe to redirect from a servlet : the page to which we redirect must be jsp and have a servlet of its own. Thanks though. – Akheloes Jun 19 '13 at 10:49

Disconnect with a servlet

2 Answers2