添加MQTT发送消息的功能

App.xaml.cs

@@ -65,6 +65,7 @@ public partial class App : Application
             var dataProcessingService = Host.Services.GetRequiredService<IDataProcessingService>();
             dataProcessingService.AddProcessor(Host.Services.GetRequiredService<CheckValueChangedProcessor>());
             dataProcessingService.AddProcessor(Host.Services.GetRequiredService<LoggingProcessor>());
+            dataProcessingService.AddProcessor(Host.Services.GetRequiredService<MqttPublishProcessor>());
             dataProcessingService.AddProcessor(Host.Services.GetRequiredService<UpdateDbVariableProcessor>());
             dataProcessingService.AddProcessor(Host.Services.GetRequiredService<HistoryProcessor>());
         }
@@ -105,7 +106,8 @@ public partial class App : Application
         services.AddSingleton<GrowlNotificationService>();
         services.AddHostedService<S7BackgroundService>();
         services.AddHostedService<OpcUaBackgroundService>();
-        services.AddHostedService<MqttBackgroundService>();
+        services.AddSingleton<MqttBackgroundService>();
+        services.AddHostedService(provider => provider.GetRequiredService<MqttBackgroundService>());
         services.AddSingleton<OpcUaBackgroundService>();
         
         // 注册 AutoMapper
@@ -118,6 +120,7 @@ public partial class App : Application
         services.AddSingleton<LoggingProcessor>();
         services.AddSingleton<UpdateDbVariableProcessor>();
         services.AddSingleton<HistoryProcessor>();
+        services.AddSingleton<MqttPublishProcessor>();
         
         // 注册数据仓库
         services.AddSingleton<DeviceRepository>();

Data/Repositories/DeviceRepository.cs

@@ -73,6 +73,7 @@ public class DeviceRepository
             var dlist = await db.Queryable<DbDevice>()
                                 .Includes(d => d.VariableTables, dv => dv.Device)
                                 .Includes(d => d.VariableTables, dvd => dvd.Variables, data => data.VariableTable)
+                                .Includes(d=>d.VariableTables,vt=>vt.Variables,v=>v.VariableMqtts )
                                 .ToListAsync();
            
 

Models/VariableMqtt.cs

@@ -15,12 +15,16 @@ public partial class VariableMqtt : ObservableObject
     }
 
     public VariableMqtt(Variable variable, Mqtt mqtt)
+    {
+        if (mqtt != null && variable != null)
         {
              Variable = variable;
                     Mqtt = mqtt;
                     MqttAlias = MqttAlias != String.Empty ? MqttAlias : variable.Name;
         }
        
+    }
+
     /// <summary>
     /// 关联的唯一标识符。
     /// </summary>
@@ -49,6 +53,10 @@ public partial class VariableMqtt : ObservableObject
     {
         get
         {
+            if (Variable!=null)
+            {
+                
+            
             if (Variable.ProtocolType == ProtocolType.S7)
             {
                 return Variable.S7Address;
@@ -57,7 +65,7 @@ public partial class VariableMqtt : ObservableObject
             {
                 return Variable.OpcUaNodeId;
             }
-
+            }
             return string.Empty;
         }
     }

Services/MqttBackgroundService.cs

@@ -1,5 +1,6 @@
 using System.Collections.Concurrent;
 using System.Text;
+using System.Threading.Channels;
 using Microsoft.Extensions.Hosting;
 using MQTTnet;
 using MQTTnet.Client;
@@ -17,26 +18,19 @@ namespace PMSWPF.Services
     /// </summary>
     public class MqttBackgroundService : BackgroundService
     {
-        // 数据服务实例，用于访问和操作应用程序数据，如MQTT配置和变量数据。
         private readonly DataServices _dataServices;
         private readonly MqttRepository _mqttRepository;
 
-        // 存储MQTT客户端实例的字典，键为MQTT配置ID，值为IMqttClient对象。
         private readonly ConcurrentDictionary<int, IMqttClient> _mqttClients;
-
-        // 存储MQTT配置的字典，键为MQTT配置ID，值为Mqtt模型对象。
         private readonly ConcurrentDictionary<int, Mqtt> _mqttConfigDic;
-
-        // 存储每个客户端重连尝试次数的字典
         private readonly ConcurrentDictionary<int, int> _reconnectAttempts;
         
-        private readonly SemaphoreSlim _reloadSemaphore = new SemaphoreSlim(0);
+        private readonly SemaphoreSlim _reloadSemaphore = new(0);
-
+        private readonly Channel<VariableMqtt> _messageChannel;
 
         /// <summary>
         /// 构造函数，注入DataServices。
         /// </summary>
-        /// <param name="dataServices">数据服务实例。</param>
         public MqttBackgroundService(DataServices dataServices, MqttRepository mqttRepository)
         {
             _dataServices = dataServices;
@@ -44,25 +38,34 @@ namespace PMSWPF.Services
             _mqttClients = new ConcurrentDictionary<int, IMqttClient>();
             _mqttConfigDic = new ConcurrentDictionary<int, Mqtt>();
             _reconnectAttempts = new ConcurrentDictionary<int, int>();
+            _messageChannel = Channel.CreateUnbounded<VariableMqtt>();
             
             _dataServices.OnMqttListChanged += HandleMqttListChanged;
         }
 
+        /// <summary>
+        /// 将待发送的变量数据异步推入队列。
+        /// </summary>
+        /// <param name="data">包含MQTT别名和变量数据的对象。</param>
+        public async Task SendVariableAsync(VariableMqtt data)
+        {
+            await _messageChannel.Writer.WriteAsync(data);
+        }
+
         protected override async Task ExecuteAsync(CancellationToken stoppingToken)
         {
             NlogHelper.Info("Mqtt后台服务正在启动。");
-            _reloadSemaphore.Release(); // Initial trigger to load variables and connect
+            _reloadSemaphore.Release(); 
+
+            var processQueueTask = ProcessMessageQueueAsync(stoppingToken);
 
             try
             {
                 while (!stoppingToken.IsCancellationRequested)
                 {
-                    await _reloadSemaphore.WaitAsync(stoppingToken); // Wait for a reload signal
+                    await _reloadSemaphore.WaitAsync(stoppingToken); 
 
-                    if (stoppingToken.IsCancellationRequested)
+                    if (stoppingToken.IsCancellationRequested) break;
-                    {
-                        break;
-                    }
 
                     if (_dataServices.Mqtts == null || _dataServices.Mqtts.Count == 0)
                     {
@@ -70,8 +73,7 @@ namespace PMSWPF.Services
                         continue;
                     }
 
-                    var isLoaded = LoadMqttConfigurations();
+                    if (!LoadMqttConfigurations())
-                    if (!isLoaded)
                     {
                         NlogHelper.Info("加载Mqtt配置过程中发生了错误，停止后面的操作。");
                         continue;
@@ -80,15 +82,15 @@ namespace PMSWPF.Services
                     await ConnectMqttList(stoppingToken);
                     NlogHelper.Info("Mqtt后台服务已启动。");
                     
-                    // while (!stoppingToken.IsCancellationRequested && _reloadSemaphore.CurrentCount == 0)
+                    while (!stoppingToken.IsCancellationRequested && _reloadSemaphore.CurrentCount == 0)
-                    // {
+                    {
-                    //     await Task.Delay(1000, stoppingToken);
+                        await Task.Delay(1000, stoppingToken);
-                    // }
+                    }
                 }
             }
             catch (OperationCanceledException)
             {
-                NlogHelper.Info("Mqtt后台服务已停止。");
+                NlogHelper.Info("Mqtt后台服务正在停止。");
             }
             catch (Exception e)
             {
@@ -96,60 +98,119 @@ namespace PMSWPF.Services
             }
             finally
             {
+                _messageChannel.Writer.Complete();
+                await processQueueTask; // 等待消息队列处理完成
                 await DisconnectAll(stoppingToken);
                 _dataServices.OnMqttListChanged -= HandleMqttListChanged;
+                NlogHelper.Info("Mqtt后台服务已停止。");
+            }
+        }
+
+        private async Task ProcessMessageQueueAsync(CancellationToken stoppingToken)
+        {
+            NlogHelper.Info("MQTT消息发送队列处理器已启动。");
+            var batch = new List<VariableMqtt>();
+            var timer = new PeriodicTimer(TimeSpan.FromSeconds(1));
+
+            while (!stoppingToken.IsCancellationRequested)
+            {
+                try
+                {
+                    // 等待信号：要么是新消息到达，要么是1秒定时器触发
+                    await Task.WhenAny(
+                        _messageChannel.Reader.WaitToReadAsync(stoppingToken).AsTask(),
+                        timer.WaitForNextTickAsync(stoppingToken).AsTask()
+                    );
+
+                    // 尽可能多地读取消息，直到达到批次上限
+                    while (batch.Count < 50 && _messageChannel.Reader.TryRead(out var message))
+                    {
+                        batch.Add(message);
+                    }
+
+                    if (batch.Any())
+                    {
+                        await SendBatchAsync(batch, stoppingToken);
+                        batch.Clear();
+                    }
+                }
+                catch (OperationCanceledException)
+                {
+                    NlogHelper.Info("MQTT消息发送队列处理器已停止。");
+                    break;
+                }
+                catch (Exception ex)
+                {
+                    NlogHelper.Error($"处理MQTT消息队列时发生错误: {ex.Message}", ex);
+                    await Task.Delay(5000, stoppingToken); // 发生未知错误时，延迟一段时间再重试
+                }
+            }
+        }
+
+        private async Task SendBatchAsync(List<VariableMqtt> batch, CancellationToken stoppingToken)
+        {
+            NlogHelper.Info($"准备发送一批 {batch.Count} 条MQTT消息。");
+            // 按MQTT服务器ID进行分组
+            var groupedByMqtt = batch.GroupBy(vm => vm.MqttId);
+
+            foreach (var group in groupedByMqtt)
+            {
+                var mqttId = group.Key;
+                if (!_mqttClients.TryGetValue(mqttId, out var client) || !client.IsConnected)
+                {
+                    NlogHelper.Warn($"MQTT客户端 (ID: {mqttId}) 未连接或不存在，跳过 {group.Count()} 条消息。");
+                    continue;
+                }
+
+                var messages = group.Select(vm => new MqttApplicationMessageBuilder()
+                                                  .WithTopic(vm.Mqtt.PublishTopic)
+                                                  .WithPayload(vm.Variable?.DataValue ?? string.Empty)
+                                                  .WithQualityOfServiceLevel(MQTTnet.Protocol.MqttQualityOfServiceLevel.AtMostOnce)
+                                                  .Build())
+                                    .ToList();
+                try
+                {
+                    foreach (var message in messages)
+                    {
+                        await client.PublishAsync(message, stoppingToken);
+                    }
+                    NlogHelper.Info($"成功向MQTT客户端 (ID: {mqttId}) 发送 {messages.Count} 条消息。");
+                }
+                catch (Exception ex)
+                {
+                    NlogHelper.Error($"向MQTT客户端 (ID: {mqttId}) 批量发送消息时发生错误: {ex.Message}", ex);
+                }
             }
         }
         
         private async Task DisconnectAll(CancellationToken stoppingToken)
         {
-            // 断开所有已连接的MQTT客户端。
+            var disconnectTasks = _mqttClients.Values.Select(client => client.DisconnectAsync(new MqttClientDisconnectOptions(), stoppingToken));
-            foreach (var mqttId in _mqttClients.Keys.ToList())
+            await Task.WhenAll(disconnectTasks);
-            {
+            _mqttClients.Clear();
-                try
-                {
-                    var client = _mqttClients[mqttId];
-                    var mqtt = _mqttConfigDic[mqttId];
-                    mqtt.IsConnected = false;
-                    if (client.IsConnected)
-                    {
-                        await client.DisconnectAsync(new MqttClientDisconnectOptions(), stoppingToken);
-                    }
-                }
-                catch (Exception e)
-                {
-                    NlogHelper.Error($"MqttID:{mqttId},断开连接的过程中发生了错误:{e.Message}", e);
-                }
-            }
         }
 
-
-        /// <summary>
-        /// 加载并连接MQTT配置。
-        /// </summary>
-        /// <returns>表示异步操作的任务。</returns>
         private bool LoadMqttConfigurations()
         {
             try
             {
                 NlogHelper.Info("开始加载Mqtt配置文件...");
                 _mqttConfigDic.Clear();
-                // 从数据服务获取所有MQTT配置。
+                var mqttConfigList = _dataServices.Mqtts.Where(m => m.IsActive).ToList();
-                var _mqttConfigList = _dataServices.Mqtts.Where(m => m.IsActive)
+                
-                                                   .ToList();
+                foreach (var mqtt in mqttConfigList)
-                foreach (var mqtt in _mqttConfigList)
                 {
                     mqtt.OnMqttIsActiveChanged += OnMqttIsActiveChangedHandler;
-                    _mqttConfigDic[mqtt.Id] = mqtt;
+                    _mqttConfigDic.TryAdd(mqtt.Id, mqtt);
                     mqtt.ConnectMessage = "配置加载成功.";
                 }
 
-                NlogHelper.Info($"Mqtt配置文件加载成功，开启的Mqtt客户端：{_mqttConfigList.Count}个。");
+                NlogHelper.Info($"Mqtt配置文件加载成功，开启的Mqtt客户端：{mqttConfigList.Count}个。");
                 return true;
             }
             catch (Exception e)
             {
-                NotificationHelper.ShowError($"Mqtt后台服务在加载变量的过程中发生了错误:{e.Message}");
+                NotificationHelper.ShowError($"Mqtt后台服务在加载配置的过程中发生了错误:{e.Message}", e);
                 return false;
             }
         }
@@ -160,27 +221,18 @@ namespace PMSWPF.Services
             {
                 if (mqtt.IsActive)
                 {
-                    _reloadSemaphore.Release();
+                    await ConnectMqtt(mqtt, CancellationToken.None);
                 }
                 else
                 {
-                    if (!_mqttClients.TryGetValue(mqtt.Id, out var client))
+                    if (_mqttClients.TryRemove(mqtt.Id, out var client) && client.IsConnected)
-                    {
-                        NlogHelper.Warn($"没有在Mqtt连接字典中找到名字为：{mqtt.Name}的连接。");
-                        return;
-                    }
-
-                    if (client.IsConnected)
                     {
                         await client.DisconnectAsync();
-                    }
-
-                    mqtt.IsConnected = false;
-                    mqtt.ConnectMessage = "断开连接.";
-
-                    _mqttClients.TryRemove(mqtt.Id, out _);
                         NlogHelper.Info($"{mqtt.Name}的客户端，与服务器断开连接.");
                     }
+                    mqtt.IsConnected = false;
+                    mqtt.ConnectMessage = "已断开连接.";
+                }
 
                 await _mqttRepository.UpdateAsync(mqtt);
                 NotificationHelper.ShowSuccess($"Mqtt客户端：{mqtt.Name},激活状态修改成功。");
@@ -191,63 +243,47 @@ namespace PMSWPF.Services
             }
         }
 
-        /// <summary>
-        /// 连接到指定的MQTT代理。
-        /// </summary>
-        /// <param name="mqtt">MQTT配置对象。</param>
-        /// <returns>表示异步操作的任务。</returns>
         private async Task ConnectMqttList(CancellationToken stoppingToken)
         {
-            foreach (Mqtt mqtt in _mqttConfigDic.Values.ToList())
+            var connectTasks = _mqttConfigDic.Values.Select(mqtt => ConnectMqtt(mqtt, stoppingToken));
-            {
+            await Task.WhenAll(connectTasks);
-                try
-                {
-                    if (_mqttClients.TryGetValue(mqtt.Id, out var mclient) && mclient.IsConnected)
-                    {
-                        NlogHelper.Info($"{mqtt.Name}的Mqtt服务器连接已存在。");
-                        mqtt.ConnectMessage = "连接成功.";
-                        mqtt.IsConnected = true;
-                        continue;
-                    }
-
-                    await ConnectMqtt(mqtt, stoppingToken);
-                }
-                catch (Exception ex)
-                {
-                    NotificationHelper.ShowError($"连接MQTT服务器失败: {mqtt.Name} - {ex.Message}", ex);
-                }
-            }
         }
 
         private async Task ConnectMqtt(Mqtt mqtt, CancellationToken stoppingToken)
         {
+            if (_mqttClients.TryGetValue(mqtt.Id, out var existingClient) && existingClient.IsConnected)
+            {
+                NlogHelper.Info($"{mqtt.Name}的Mqtt服务器连接已存在。");
+                return;
+            }
+
             NlogHelper.Info($"开始连接：{mqtt.Name}的服务器...");
             mqtt.ConnectMessage = "开始连接服务器...";
-            // 创建MQTT客户端工厂和客户端实例。
+            
             var factory = new MqttFactory();
             var client = factory.CreateMqttClient();
-            // 构建MQTT客户端连接选项。
+
             var options = new MqttClientOptionsBuilder()
                           .WithClientId(mqtt.ClientID)
                           .WithTcpServer(mqtt.Host, mqtt.Port)
                           .WithCredentials(mqtt.UserName, mqtt.PassWord)
-                          .WithCleanSession() // 清理会话，每次连接都是新会话
+                          .WithCleanSession()
                           .Build();
 
-            // 设置连接成功事件处理程序。
+            client.UseConnectedHandler(async e => await HandleConnected(e, client, mqtt));
-            client.UseConnectedHandler(async (e) => { await HandleConnected(e, client, mqtt); });
+            client.UseApplicationMessageReceivedHandler(e => HandleMessageReceived(e, mqtt));
+            client.UseDisconnectedHandler(async e => await HandleDisconnected(e, options, client, mqtt, stoppingToken));
 
-            // 设置接收消息处理程序
+            try
-            client.UseApplicationMessageReceivedHandler(e => { HandleMessageReceived(e, mqtt); });
+            {
-
-            // 设置断开连接事件处理程序。
-            client.UseDisconnectedHandler(async (e) => await HandleDisconnected(e, options, client, mqtt, stoppingToken));
-
-            // 尝试连接到MQTT代理。
                 await client.ConnectAsync(options, stoppingToken);
-
+                _mqttClients.AddOrUpdate(mqtt.Id, client, (id, oldClient) => client);
-            // 将连接成功的客户端添加到字典。
+            }
-            _mqttClients[mqtt.Id] = client;
+            catch (Exception ex)
+            {
+                mqtt.ConnectMessage = $"连接MQTT服务器失败: {ex.Message}";
+                NlogHelper.Error($"连接MQTT服务器失败: {mqtt.Name}", ex);
+            }
         }
 
         private static void HandleMessageReceived(MqttApplicationMessageReceivedEventArgs e, Mqtt mqtt)
@@ -255,84 +291,54 @@ namespace PMSWPF.Services
             var topic = e.ApplicationMessage.Topic;
             var payload = Encoding.UTF8.GetString(e.ApplicationMessage.Payload);
             NlogHelper.Info($"MQTT客户端 {mqtt.Name} 收到消息: 主题={topic}, 消息={payload}");
-
-            // 在这里添加处理消息的逻辑
         }
 
-        private async Task HandleDisconnected(MqttClientDisconnectedEventArgs args, IMqttClientOptions options,
+        private async Task HandleDisconnected(MqttClientDisconnectedEventArgs args, IMqttClientOptions options, IMqttClient client, Mqtt mqtt, CancellationToken stoppingToken)
-                                              IMqttClient client,
-                                              Mqtt mqtt, CancellationToken stoppingToken)
         {
             NotificationHelper.ShowWarn($"与MQTT服务器断开连接: {mqtt.Name}");
             mqtt.ConnectMessage = "断开连接.";
             mqtt.IsConnected = false;
-            // 服务停止
-            if (stoppingToken.IsCancellationRequested || !mqtt.IsActive)
-                return;
 
-            // 增加重连尝试次数
+            if (stoppingToken.IsCancellationRequested || !mqtt.IsActive) return;
-            if (!_reconnectAttempts.ContainsKey(mqtt.Id))
-            {
-                _reconnectAttempts[mqtt.Id] = 0;
-            }
 
-            _reconnectAttempts[mqtt.Id]++;
+            _reconnectAttempts.AddOrUpdate(mqtt.Id, 1, (id, count) => count + 1);
+            var attempt = _reconnectAttempts[mqtt.Id];
 
-            // 指数退避策略
+            var delay = TimeSpan.FromSeconds(Math.Min(60, Math.Pow(2, attempt)));
-            var maxDelay = TimeSpan.FromMinutes(5); // 最大延迟5分钟
+            NlogHelper.Info($"与MQTT服务器：{mqtt.Name} 的连接已断开。将在 {delay.TotalSeconds} 秒后尝试第 {attempt} 次重新连接...");
-            var baseDelay = TimeSpan.FromSeconds(5); // 基础延迟5秒
+            mqtt.ConnectMessage = $"连接已断开，{delay.TotalSeconds}秒后尝试重连...";
-            var delay = TimeSpan.FromSeconds(baseDelay.TotalSeconds *
-                                             Math.Pow(2, _reconnectAttempts[mqtt.Id] - 1));
-            if (delay > maxDelay)
-            {
-                delay = maxDelay;
-            }
 
-            NlogHelper.Info(
-                $"与MQTT服务器：{mqtt.Name} 的连接已断开。将在 {delay.TotalSeconds} 秒后尝试第 {_reconnectAttempts[mqtt.Id]} 次重新连接...");
-
-            mqtt.ConnectMessage = $"连接已断开。将在 {delay.TotalSeconds} 秒后尝试第 {_reconnectAttempts[mqtt.Id]} 次重新连接...";
             await Task.Delay(delay, stoppingToken);
+
             try
             {
-                mqtt.ConnectMessage = $"开始重新连接服务器...";
+                mqtt.ConnectMessage = "开始重新连接服务器...";
                 await client.ConnectAsync(options, stoppingToken);
             }
             catch (Exception ex)
             {
-                mqtt.ConnectMessage = $"重新与Mqtt服务器连接失败.";
+                mqtt.ConnectMessage = "重新连接失败.";
                 NlogHelper.Error($"重新与Mqtt服务器连接失败: {mqtt.Name}", ex);
             }
         }
 
         private async Task HandleConnected(MqttClientConnectedEventArgs args, IMqttClient client, Mqtt mqtt)
         {
-            // 重置重连尝试次数
+            _reconnectAttempts.TryRemove(mqtt.Id, out _);
-            if (_reconnectAttempts.ContainsKey(mqtt.Id))
-            {
-                _reconnectAttempts[mqtt.Id] = 0;
-            }
-
             NotificationHelper.ShowSuccess($"已连接到MQTT服务器: {mqtt.Name}");
             mqtt.IsConnected = true;
             mqtt.ConnectMessage = "连接成功.";
 
-            // 订阅主题
+            if (!string.IsNullOrEmpty(mqtt.SubTopic))
-            await client.SubscribeAsync(new MqttTopicFilterBuilder().WithTopic(mqtt.SubTopic)
+            {
-                                                                    .Build());
+                await client.SubscribeAsync(new MqttTopicFilterBuilder().WithTopic(mqtt.SubTopic).Build());
                 NlogHelper.Info($"MQTT客户端 {mqtt.Name} 已订阅主题: {mqtt.SubTopic}");
             }
+        }
 
-
-        /// <summary>
-        /// 处理MQTT列表变化事件的回调方法。
-        /// </summary>
-        /// <param name="sender">事件发送者。</param>
-        /// <param name="mqtts">更新后的MQTT配置列表。</param>
         private void HandleMqttListChanged(List<Mqtt> mqtts)
         {
-            NlogHelper.Info("Mqtt列表发生了变化，正在重新加载数据..."); // 记录MQTT列表变化信息
+            NlogHelper.Info("Mqtt列表发生了变化，正在重新加载数据...");
-            // 重新加载MQTT配置和变量数据。
             _reloadSemaphore.Release();
         }
     }

Services/Processors/MqttPublishProcessor.cs

@@ -0,0 +1,39 @@
+using System.Threading.Tasks;
+using PMSWPF.Models;
+
+namespace PMSWPF.Services.Processors
+{
+    /// <summary>
+    /// 负责将变量数据发布到MQTT的处理器。
+    /// </summary>
+    public class MqttPublishProcessor : IVariableProcessor
+    {
+        private readonly MqttBackgroundService _mqttBackgroundService;
+
+        public MqttPublishProcessor(MqttBackgroundService mqttBackgroundService)
+        {
+            _mqttBackgroundService = mqttBackgroundService;
+        }
+
+        /// <summary>
+        /// 处理单个变量上下文，如果有关联的MQTT配置，则将其推送到发送队列。
+        /// </summary>
+        /// <param name="context">包含变量及其元数据的上下文对象。</param>
+        public async Task ProcessAsync(VariableContext context)
+        {
+            var variable = context.Data;
+            if (variable?.VariableMqtts == null || variable.VariableMqtts.Count == 0)
+            {
+                return; // 没有关联的MQTT配置，直接返回
+            }
+
+            // 遍历所有关联的MQTT配置，并将其推入发送队列
+            foreach (var variableMqtt in variable.VariableMqtts)
+            {
+                // 确保VariableMqtt对象中包含了最新的Variable数据
+                variableMqtt.Variable = variable;
+                await _mqttBackgroundService.SendVariableAsync(variableMqtt);
+            }
+        }
+    }
+}