以下代码是登录操作的一部分,哪段代码用于保存登录信息( ) if(sqlUser != null) { request.getSession().setAttribute("user", sqlUser); request.getRequestDispatcher("/GoodListServlet").forward(request, response); }else { request.setAttribute("loginError", "用户名或者密码错误,请重新输入"); request.getRequestDispatcher("/login.jsp").forward(request, response); }

A. request.setAttribute("loginError", "用户名或者密码错误,请重新输入");
B. request.getSession().setAttribute("user", sqlUser);
C. request.getRequestDispatcher("/login.jsp").forward(request, response);
D. 以上都不正确