public ActionResult Register(LoginViewModel model) { if (!ModelState.IsValid) { return(Json(new { code = -1, url = "", msg = "数据不合法" })); } //根据用户登录名查询指定用户实体 var user = UserBll.LoadEntities(t => t.UserCode == model.UserCode).FirstOrDefault(); //如果用户不存在,则携带错误消息并返回登录页面 if (user != null) { return(Json(new { code = "-2", url = "", msg = "用户名已存在" })); } var ret = UserBll.AddEntity(new T_Sys_User() { Password = Encryptor.Md5Hash(model.Password), UserCode = model.UserCode }); return(Json(new { code = "0", url = "/Account/Login", msg = "注册成功,请登录" })); }