1

api/middleware/mqtt/mqttManager.js

@@ -1,8 +1,30 @@
 const MqttSyncClient = require('./mqttClient');
 const Framework = require('../../../framework/node-core-framework');
 const logs = require('../logProxy');
+const appConfig = require('../../../config/config.js');
 // action.js 已合并到 mqttDispatcher.js，不再需要单独引入
 
+function buildMqttManagerConfig() {
+    const mqttCfg = appConfig.mqtt || {};
+    const brokerUrl = (mqttCfg.brokerUrl && String(mqttCfg.brokerUrl).trim())
+        ? mqttCfg.brokerUrl.trim()
+        : `mqtt://${mqttCfg.host || '192.144.167.231'}:${mqttCfg.port != null ? mqttCfg.port : 1883}`;
+    const options = {
+        clientId: mqttCfg.clientId || `mqtt_server_${Math.random().toString(16).substr(2, 8)}`,
+        clean: mqttCfg.clean !== false,
+        connectTimeout: mqttCfg.connectTimeout != null ? mqttCfg.connectTimeout : 5000,
+        reconnectPeriod: mqttCfg.reconnectPeriod != null ? mqttCfg.reconnectPeriod : 5000,
+        keepalive: mqttCfg.keepalive != null ? mqttCfg.keepalive : 60
+    };
+    if (mqttCfg.username) {
+        options.username = mqttCfg.username;
+    }
+    if (mqttCfg.password) {
+        options.password = mqttCfg.password;
+    }
+    return { brokerUrl, options };
+}
+
 /**
  * MQTT管理器 - 单例模式
  * 负责管理MQTT连接，确保全局只有一个MQTT客户端实例
@@ -11,16 +33,7 @@ class MqttManager {
     constructor() {
         this.client = null;
         this.isInitialized = false;
-        this.config = {
-            brokerUrl: 'mqtt://192.144.167.231:1883', // MQTT Broker地址
-            options: {
-                clientId: `mqtt_server_${Math.random().toString(16).substr(2, 8)}`,
-                clean: true,
-                connectTimeout: 5000,
-                reconnectPeriod: 5000, // 自动重连间隔
-                keepalive: 10
-            }
-        };
+        this.config = buildMqttManagerConfig();
     }
 
     /**
@@ -30,8 +43,16 @@ class MqttManager {
      */
     async getInstance(config = {}) {
         if (this.client && this.isInitialized) {
-            console.log('[MQTT管理器] 返回已存在的MQTT客户端实例');
-            return this.client;
+            const brokerOk = typeof this.client.isBrokerConnected === 'function'
+                ? this.client.isBrokerConnected()
+                : this.client.isConnected;
+            if (!brokerOk) {
+                console.warn('[MQTT管理器] 单例已初始化但 Broker 未连接，重置并重建');
+                await this.reset();
+            } else {
+                console.log('[MQTT管理器] 返回已存在的MQTT客户端实例');
+                return this.client;
+            }
         }
 
         // 合并配置
@@ -91,7 +112,13 @@ class MqttManager {
      * @returns {boolean}
      */
     isReady() {
-        return this.isInitialized && this.client && this.client.isConnected;
+        if (!this.isInitialized || !this.client) {
+            return false;
+        }
+        if (typeof this.client.isBrokerConnected === 'function') {
+            return this.client.isBrokerConnected();
+        }
+        return !!this.client.isConnected;
     }
 
     /**