add to sevelet

else if (action.equals("login"))
        {
            String email = request.getParameter("usernamelogin");
            String password = request.getParameter("passwordlogin");





            if (UserDB.search(email) != null)
            {
               User user = UserDB.search(email);
               if (password == user.getPassword())
                {
                    url = "/home.jsp";
                }
               else
               {
                   message = "Login failed";
                   url = "/login.jsp";
               }
            }
            else if (UserDB.LoginU(email) != null)
            {
               User user = UserDB.LoginU(email);
               if (password == user.getPassword())
                {
                    url = "/home.jsp";
                }
               else
               {
                    message = "Login failed";
                    url = "/login.jsp";
               }
            }
            else
            {
                message = "Login failed";
                url = "/login.jsp";
            }


        }