1

api/middleware/schedule/index.js

@@ -141,6 +141,11 @@ class ScheduleManager {
                 console.error('[调度管理器] 处理 Boss 消息失败:', error);
             }
         });
+
+        // 重连后向 Broker 幂等声明订阅（监听器仅在上方注册一次，不重复添加）
+        if (typeof this.mqttClient.setMaintainedTopics === 'function') {
+            this.mqttClient.setMaintainedTopics(['heartbeat', 'response', 'boss/message']);
+        }
     }
 
  
@@ -152,7 +157,11 @@ class ScheduleManager {
         const status = this.mqttDispatcher ? this.mqttDispatcher.getSystemStatus() : {};
         return {
             isInitialized: this.isInitialized,
-            mqttConnected: this.mqttClient && this.mqttClient.isConnected,
+            mqttConnected: this.mqttClient && (
+                typeof this.mqttClient.isBrokerConnected === 'function'
+                    ? this.mqttClient.isBrokerConnected()
+                    : this.mqttClient.isConnected
+            ),
             systemStats: deviceManager.getSystemStats(),
             allDevices: deviceManager.getAllDevicesStatus(),
             taskQueues: TaskQueue.getAllDeviceStatus(),