diff --git a/springboot/wumei-admin/src/main/resources/application.yml b/springboot/wumei-admin/src/main/resources/application.yml
index 23db7a5f..9d7079ea 100644
--- a/springboot/wumei-admin/src/main/resources/application.yml
+++ b/springboot/wumei-admin/src/main/resources/application.yml
@@ -83,10 +83,11 @@ spring:
     username: wumei-smart                      # 账号
     password: wumei-smart                      # 密码
     host-url: tcp://localhost:1883             # mqtt连接tcp地址
-    client-id: ${random.int}                 # 客户端Id，不能相同，采用随机数 ${random.value}
+    client-id: ${random.int}                   # 客户端Id，不能相同，采用随机数 ${random.value}
     default-topic: test                        # 默认主题
     timeout: 30000                             # 超时时间
     keepalive: 30                              # 保持连接
+    clearSession: true                         # 清除会话(设置为false,断开连接，重连后使用原来的会话 保留订阅的主题，能接收离线期间的消息)
   task:
     execution:
       pool:
diff --git a/springboot/wumei-iot/src/main/java/com/ruoyi/iot/mqtt/EmqxClient.java b/springboot/wumei-iot/src/main/java/com/ruoyi/iot/mqtt/EmqxClient.java
index 4b392174..93735d24 100644
--- a/springboot/wumei-iot/src/main/java/com/ruoyi/iot/mqtt/EmqxClient.java
+++ b/springboot/wumei-iot/src/main/java/com/ruoyi/iot/mqtt/EmqxClient.java
@@ -117,8 +117,6 @@ public class EmqxClient {
         options.setKeepAliveInterval(keepalive);
         //设置自动重新连接
         options.setAutomaticReconnect(true);
-            /*设置为false，断开连接，不清除session，重连后还是原来的session
-              保留订阅的主题，能接收离线期间的消息*/
         options.setCleanSession(clearSession);
         logger.debug("====>>>>设置mqtt参数成功");
     }