/// <summary> /// 发送当前用户的离线信息 /// </summary> /// <returns></returns> public async Task SendOfflineMsg() { // 所有离线信息 var lc = new ListCache <string>(MsgKit.MsgQueueKey); var ls = await lc.GetRange(UserID); if (ls != null && ls.Count > 0) { try { foreach (var mi in ls) { await _writer.Write(mi); } // 删除避免重复推送 await lc.Delete(UserID); } catch (Exception ex) { Log.Warning(ex, "向{0}发送离线信息异常", UserID); } } }