public ActionResult GetMsgContent(int id) { UserModel userModel = new UserModel(); UserMessage msg = userModel.GetUserMessage(id); if (msg == null) return Json(new { key = 0, value = "该信息不存在!" }, JsonRequestBehavior.AllowGet); //如果该条信息没有被读过,则此时将其标记为已读 if (!msg.Readed) { msg.Readed = true; userModel.Save(); } return Json(new { key = 1, title = msg.MsgTitle, createTime = msg.CreateTime.ToString("yyyy/M/d HH:mm:ss"), content = msg.MsgContent }, JsonRequestBehavior.AllowGet); }