跳转到登录页面

1 在拦截器里拦截之后跳转到登录页

public class ActionInterceptor implements Interceptor {
    @Override
    public void intercept(Invocation inv) {
        HttpSession session = inv.getController().getSession();
        HttpServletRequest request = inv.getController().getRequest();
        HttpServletResponse response = inv.getController().getResponse();
        HttpSession httpSession = request.getSession();
        Controller controller  = inv.getController();

controller.redirect("/");
return;


或者是

request.getRequestDispatcher("../").forward(request,response);

 return;

或者是

response.sendRedirect("../");

 return;