Struts2 redirect from login interceptor

Question

Our application requires users to be logged in to view any content. Access to all pages is intercepted by LoginInterceptor which brings up the login form if the

Answer 1

If not logged in then redirect to LOGIN result. Then you should rewrite your interceptor something like

public final String intercept(final ActionInvocation invocation) throws Exception {
   // before save original url
   Map session = invocation.getInvocationContext().getSession();
   Object action = invocation.getAction();
   if (!(action instanceof LoginAction)){ 
     String queryString = request.getQueryString();
     session.put("savedUrl", request.getRequestURI()+(queryString==null?"":("?"+queryString)));
   } else {
     return invocation.invoke();
   }

   if (!processLogin(request, session)) { //return false if not authenticated
     session.put("isLogin", true);
     return Action.LOGIN;
   } else {
       savedUrl = (String) session.get("savedUrl");
       boolean isLogin = (boolean)session.get("isLogin");
       if (!StringUtils.isEmpty(savedUrl) && isLogin) {
          session.put("isLogin", false); 
          return "redirect";
       }
       return invocation.invoke();
   }
}