refactor(mqtt): 重构MQTT服务以支持多客户端配置

重构MqttService类，引入ClientConfig和MqttConfig枚举类，支持多客户端连接和配置管理。移除硬编码的MQTT配置，改为通过枚举动态管理多个客户端的连接和订阅。提升代码的可扩展性和可维护性。

agileboot-domain/src/main/java/com/agileboot/domain/mqtt/MqttService.java

@@ -1,6 +1,9 @@
 package com.agileboot.domain.mqtt;
 
 import javax.annotation.PostConstruct;
+
+import lombok.AllArgsConstructor;
+import lombok.Getter;
 import lombok.RequiredArgsConstructor;
 import lombok.Setter;
 import lombok.extern.slf4j.Slf4j;
@@ -8,25 +11,46 @@ import org.eclipse.paho.client.mqttv3.persist.MemoryPersistence;
 import org.springframework.stereotype.Service;
 import org.eclipse.paho.client.mqttv3.*;
 
+import java.util.ArrayList;
+import java.util.List;
+
 @Slf4j
 @Service
 @RequiredArgsConstructor
 public class MqttService implements MqttCallback {
+    private final List<ClientConfig> clientConfigs = new ArrayList<>();
+
+    @AllArgsConstructor
+    private static class ClientConfig {
+        private final MqttClient client;
+        private final MqttConfig config;
+    }
+    
+    @AllArgsConstructor
+    @Getter
+    private enum MqttConfig {
+        LOCK("lock", "lock@ys#6785$", "lock/up/S4202414S", "lock/down/S4202414S"),
+        SELL("sell", "sell@ys#6785$", "lock/up/S5200184S", "lock/down/S5200184S");
+
+        private final String username;
+        private final String password;
+        private final String topicFilter;
+        private final String publishTopic;
+    }
+
     private static final String SERVER_URL = "tcp://221.7.159.46:1883";
-//    private static final String USERNAME = "lock";
+//    private static final String USERNAME = "sell";
-//    private static final String PASSWORD = "lock@ys#6785$";
+//    private static final String PASSWORD = "sell@ys#6785$";
-//    private static final String TOPIC_FILTER = "lock/up/S4202414S";
+//    private static final String TOPIC_FILTER = "lock/up/S5200184S";
-//    private static final String TOPIC = "lock/down/S4202414S";
+//    private static final String TOPIC = "lock/down/S5200184S";
-    private static final String USERNAME = "sell";
-    private static final String PASSWORD = "sell@ys#6785$";
-    private static final String TOPIC_FILTER = "lock/up/S5200184S";
-    private static final String TOPIC = "lock/down/S5200184S";
 //    private static final String USERNAME = "iot";
 //    private static final String PASSWORD = "iot@ys#9963$";
 //    private static final String TOPIC_FILTER = "hongfa/2401310026C50D24FE/upload/";
 //    private static final String TOPIC = "hongfa/2401310026C50D24FE/download/";
 
-    private MqttClient client;
+//    private MqttClient client;
+    @Setter
+    private List<String> activeTopics = new ArrayList<>();
     // 设置自定义消息处理器
     @Setter
     private MessageHandler messageHandler; // 自定义消息处理器接口
@@ -38,7 +62,7 @@ public class MqttService implements MqttCallback {
     @PostConstruct
     public void init() throws MqttException {
         connect();
-        subscribe(TOPIC_FILTER);
+//        subscribe(TOPIC_FILTER);
 
         setMessageHandler((String topic, String hexPayload) -> {
             log.info("收到消息 topic: {}, hexPayload: {}", topic, hexPayload);
@@ -46,31 +70,54 @@ public class MqttService implements MqttCallback {
     }
 
     public void connect() throws MqttException {
-        client = new MqttClient(SERVER_URL, MqttClient.generateClientId(), new MemoryPersistence());
+        for (MqttConfig config : MqttConfig.values()) {
-        MqttConnectOptions options = new MqttConnectOptions();
+            MqttClient client = new MqttClient(SERVER_URL, MqttClient.generateClientId(), new MemoryPersistence());
-        options.setUserName(USERNAME);
+            MqttConnectOptions options = new MqttConnectOptions();
-        options.setPassword(PASSWORD.toCharArray());
+            options.setUserName(config.getUsername());
-        options.setCleanSession(true);
+            options.setPassword(config.getPassword().toCharArray());
-        options.setAutomaticReconnect(true);
+            options.setCleanSession(true);
+            options.setAutomaticReconnect(true);
+
+            client.setCallback(new MqttCallback() {
+                @Override
+                public void messageArrived(String topic, MqttMessage message) {
+                    MqttService.this.messageArrived(topic, message);
+                }
+                @Override public void connectionLost(Throwable cause) {}
+                @Override public void deliveryComplete(IMqttDeliveryToken token) {}
+            });
+            client.connect(options);
+            client.subscribe(config.getTopicFilter());
+            clientConfigs.add(new ClientConfig(client, config));
+            log.info("成功连接MQTT账号：{}", config.getUsername());
+        }
 
-        client.setCallback(this);
-        client.connect(options);
         log.info("连接 MQTT 服务器 {}", SERVER_URL);
     }
 
-    public void subscribe(String topic) throws MqttException {
+    /*public void subscribe(String topic) throws MqttException {
         client.subscribe(topic);
-    }
+    }*/
 
     public void publish(String data) throws MqttException {
 //        lockCmd((byte) 0x8A, (byte) 0x01, (byte) 0x01, (byte) 0x33, null);
         String bcc = BCCCalculator.calculateBCC(data);
         MqttMessage message = new MqttMessage(BCCCalculator.hexStringToByteArray(data + bcc));
-        client.publish(TOPIC, message);
+        clientConfigs.forEach(cc -> {
+            try {
+                cc.client.publish(cc.config.getPublishTopic(), message);
+            } catch (MqttException e) {
+                log.error("消息发送失败", e);
+            }
+        });
     }
 
     public void disconnect() throws MqttException {
-        client.disconnect();
+        for (ClientConfig cc : clientConfigs) {
+            MqttClient client = cc.client;
+            client.disconnect();
+            client.close();
+        }
     }
 
     @Override
@@ -108,7 +155,7 @@ public class MqttService implements MqttCallback {
      指令0x9E：读取所有锁状态
      指令中未标注cmdSub指令参数的固定为0x33
      *******************************************************/
-    private boolean lockCmd(byte cmdNo, byte boardNo, byte lockNo, byte cmdSub, String[] rsMsg)
+    /*private boolean lockCmd(byte cmdNo, byte boardNo, byte lockNo, byte cmdSub, String[] rsMsg)
     {
         try
         {
@@ -121,12 +168,18 @@ public class MqttService implements MqttCallback {
 
             //发送数据并获取返回值
             MqttMessage message = new MqttMessage(sendData);
-            client.publish(TOPIC, message);
+            clientConfigs.forEach(cc -> {
+            try {
+                cc.client.publish(cc.config.getPublishTopic(), message);
+            } catch (MqttException e) {
+                log.error("消息发送失败", e);
+            }
+        });
 
         } catch(Exception e) {
             log.error("lockCmd", e);
         }
         return false;
-    }
+    }*/
 
 }