diff --git a/cc-admin-master/yudao-module-hand-mqtt/src/main/java/cn/iocoder/yudao/module/mqtt/kafka/KafkaConfig.java b/cc-admin-master/yudao-module-hand-mqtt/src/main/java/cn/iocoder/yudao/module/mqtt/kafka/KafkaConfig.java
index a437e82..3418e5d 100644
--- a/cc-admin-master/yudao-module-hand-mqtt/src/main/java/cn/iocoder/yudao/module/mqtt/kafka/KafkaConfig.java
+++ b/cc-admin-master/yudao-module-hand-mqtt/src/main/java/cn/iocoder/yudao/module/mqtt/kafka/KafkaConfig.java
@@ -47,7 +47,6 @@ public class KafkaConfig {
                     return new TopicPartition(record.topic() + ".DLT", 0);
                 });
 
-        // 【问题4 FIX】批量场景下重试次数设为 0，失败立即进 DLT
         // 避免整批阻塞消费线程，由 DLT 消费者做单条重试
         // 如果业务可以接受短暂阻塞，可改为 FixedBackOff(1000L, 1L) 最多重试1次
         DefaultErrorHandler errorHandler = new DefaultErrorHandler(
diff --git a/cc-admin-master/yudao-module-hand-mqtt/src/main/java/cn/iocoder/yudao/module/mqtt/kafka/KafkaMessageConsumer.java b/cc-admin-master/yudao-module-hand-mqtt/src/main/java/cn/iocoder/yudao/module/mqtt/kafka/KafkaMessageConsumer.java
index 8633b61..7a2ced4 100644
--- a/cc-admin-master/yudao-module-hand-mqtt/src/main/java/cn/iocoder/yudao/module/mqtt/kafka/KafkaMessageConsumer.java
+++ b/cc-admin-master/yudao-module-hand-mqtt/src/main/java/cn/iocoder/yudao/module/mqtt/kafka/KafkaMessageConsumer.java
@@ -1,38 +1,27 @@
 package cn.iocoder.yudao.module.mqtt.kafka;
 
 import cn.iocoder.yudao.module.mqtt.processor.BatchDeviceMessageProcessor;
-import cn.iocoder.yudao.module.mqtt.processor.DeviceMessageProcessor;
-import cn.iocoder.yudao.module.mqtt.processor.HandAlarmMessageProcess;
+import cn.iocoder.yudao.module.mqtt.processor.HandAlarmMessageProcessor;
 import lombok.extern.slf4j.Slf4j;
 import org.apache.kafka.clients.consumer.ConsumerRecord;
-import org.springframework.beans.factory.annotation.Qualifier;
-import org.springframework.core.task.TaskExecutor;
 import org.springframework.kafka.annotation.KafkaListener;
-import org.springframework.kafka.core.KafkaTemplate;
-import org.springframework.kafka.support.Acknowledgment;
-import org.springframework.kafka.support.KafkaHeaders;
-import org.springframework.messaging.handler.annotation.Header;
-import org.springframework.messaging.handler.annotation.Payload;
 import org.springframework.stereotype.Service;
 
 import java.util.List;
-import java.util.concurrent.CompletableFuture;
-import java.util.stream.Collectors;
-import java.util.stream.IntStream;
 
 
 @Slf4j
 @Service // <--- 添加这个注解！
 public class KafkaMessageConsumer {
-    private final HandAlarmMessageProcess handAlarmMessageProcess;
+    private final HandAlarmMessageProcessor handAlarmMessageProcessor;
 
     private final BatchDeviceMessageProcessor batchDeviceMessageProcessor;
 
 
 
-    public KafkaMessageConsumer(HandAlarmMessageProcess handAlarmMessageProcess,
+    public KafkaMessageConsumer(HandAlarmMessageProcessor handAlarmMessageProcessor,
                                 BatchDeviceMessageProcessor batchDeviceMessageProcessor) {
-        this.handAlarmMessageProcess = handAlarmMessageProcess;
+        this.handAlarmMessageProcessor = handAlarmMessageProcessor;
         this.batchDeviceMessageProcessor = batchDeviceMessageProcessor;
     }
 
@@ -67,7 +56,7 @@ public class KafkaMessageConsumer {
         // 遍历 List，一条条处理
         for (ConsumerRecord<String, String> record : records) {
             try {
-                handAlarmMessageProcess.processSingle(record.value());
+                handAlarmMessageProcessor.processSingle(record.value());
 
             } catch (Exception e) {
                 log.error("单条消息处理失败，已跳过。Key: {}, Value: {}", record.key(), record.value(), e);
diff --git a/cc-admin-master/yudao-module-hand-mqtt/src/main/java/cn/iocoder/yudao/module/mqtt/mqtt/OnMessageCallback.java b/cc-admin-master/yudao-module-hand-mqtt/src/main/java/cn/iocoder/yudao/module/mqtt/mqtt/OnMessageCallback.java
index 5bea96b..640e4dd 100644
--- a/cc-admin-master/yudao-module-hand-mqtt/src/main/java/cn/iocoder/yudao/module/mqtt/mqtt/OnMessageCallback.java
+++ b/cc-admin-master/yudao-module-hand-mqtt/src/main/java/cn/iocoder/yudao/module/mqtt/mqtt/OnMessageCallback.java
@@ -60,7 +60,6 @@ public class OnMessageCallback implements MqttCallbackExtended {
             if (from == null) return;
 
             // 3. 转发 Kafka (异步 IO)
-            // 配合 application.yml 的 linger.ms，底层会自动批量发送
             String payload = new String(message.getPayload());
             kafkaTemplate.send(suffix, sn, payload);
 
diff --git a/cc-admin-master/yudao-module-hand-mqtt/src/main/java/cn/iocoder/yudao/module/mqtt/processor/BatchDeviceMessageProcessor.java b/cc-admin-master/yudao-module-hand-mqtt/src/main/java/cn/iocoder/yudao/module/mqtt/processor/BatchDeviceMessageProcessor.java
index ce4fc7b..e590c4b 100644
--- a/cc-admin-master/yudao-module-hand-mqtt/src/main/java/cn/iocoder/yudao/module/mqtt/processor/BatchDeviceMessageProcessor.java
+++ b/cc-admin-master/yudao-module-hand-mqtt/src/main/java/cn/iocoder/yudao/module/mqtt/processor/BatchDeviceMessageProcessor.java
@@ -921,7 +921,7 @@ public class BatchDeviceMessageProcessor {
                 : String.valueOf(value);
 
         String statusText = isAlarming ? "报警" : "报警结束";
-        String msgContent = String.format("%s%s，%s气体浓度为%s",
+        String msgContent = String.format("%s%s,%s气体浓度为%s",
                 handVo.getUserName(), statusText, gasName, valueStr);
 
         try {
diff --git a/cc-admin-master/yudao-module-hand-mqtt/src/main/java/cn/iocoder/yudao/module/mqtt/processor/HandAlarmMessageProcess.java b/cc-admin-master/yudao-module-hand-mqtt/src/main/java/cn/iocoder/yudao/module/mqtt/processor/HandAlarmMessageProcessor.java
similarity index 96%
rename from cc-admin-master/yudao-module-hand-mqtt/src/main/java/cn/iocoder/yudao/module/mqtt/processor/HandAlarmMessageProcess.java
rename to cc-admin-master/yudao-module-hand-mqtt/src/main/java/cn/iocoder/yudao/module/mqtt/processor/HandAlarmMessageProcessor.java
index b1ad1f8..ff611ec 100644
--- a/cc-admin-master/yudao-module-hand-mqtt/src/main/java/cn/iocoder/yudao/module/mqtt/processor/HandAlarmMessageProcess.java
+++ b/cc-admin-master/yudao-module-hand-mqtt/src/main/java/cn/iocoder/yudao/module/mqtt/processor/HandAlarmMessageProcessor.java
@@ -20,7 +20,7 @@ import java.util.Map;
 
 @Slf4j
 @Component
-public class HandAlarmMessageProcess {
+public class HandAlarmMessageProcessor {
 
     /**
      * 【问题6 FIX】限流速率从配置文件读取，不再硬编码
@@ -35,7 +35,7 @@ public class HandAlarmMessageProcess {
     @Resource
     private TdengineService tdengineService;
 
-    public HandAlarmMessageProcess(
+    public HandAlarmMessageProcessor(
         @Value("${mqtt.alarm.rate-limit:3000.0}") double rateLimit) {
         this.mqttRateLimiter = RateLimiter.create(rateLimit);
     }
@@ -106,7 +106,6 @@ public class HandAlarmMessageProcess {
             mqttRateLimiter.acquire();
 
             try {
-                // 【BUG-2 FIX】JSON 构造移至 try 块内，确保异常不会绕过限流语义
                 String topic = sn + "/zds_down";
                 String jsonPayload = JsonUtils.toJsonString(Map.of("message", message));
                 mqttClient.publish(topic, jsonPayload);