diff --git a/example/mqtt-car/src/main/java/org/dromara/mica/mqtt/server/entity/CarInfo.java b/example/mqtt-car/src/main/java/org/dromara/mica/mqtt/server/entity/CarInfo.java
index 917e7ca..6b70ab6 100644
--- a/example/mqtt-car/src/main/java/org/dromara/mica/mqtt/server/entity/CarInfo.java
+++ b/example/mqtt-car/src/main/java/org/dromara/mica/mqtt/server/entity/CarInfo.java
@@ -1,5 +1,7 @@
 package org.dromara.mica.mqtt.server.entity;
 
+import com.baomidou.mybatisplus.annotation.IdType;
+import com.baomidou.mybatisplus.annotation.TableId;
 import com.baomidou.mybatisplus.annotation.TableName;
 import com.fasterxml.jackson.annotation.JsonFormat;
 import lombok.Data;
@@ -16,6 +18,7 @@ public class CarInfo implements Serializable {
 	private static final long serialVersionUID = 1L;
 
 	/** customer_id */
+	@TableId(type = IdType.AUTO)
 	private Long customerId;
 
 	/** 白名单生效时间 */
diff --git a/example/mqtt-car/src/main/java/org/dromara/mica/mqtt/server/entity/CarParkItem.java b/example/mqtt-car/src/main/java/org/dromara/mica/mqtt/server/entity/CarParkItem.java
index 1237010..3c978bf 100644
--- a/example/mqtt-car/src/main/java/org/dromara/mica/mqtt/server/entity/CarParkItem.java
+++ b/example/mqtt-car/src/main/java/org/dromara/mica/mqtt/server/entity/CarParkItem.java
@@ -1,5 +1,7 @@
 package org.dromara.mica.mqtt.server.entity;
 
+import com.baomidou.mybatisplus.annotation.IdType;
+import com.baomidou.mybatisplus.annotation.TableId;
 import com.baomidou.mybatisplus.annotation.TableName;
 import com.fasterxml.jackson.annotation.JsonFormat;
 import lombok.Data;
@@ -22,6 +24,7 @@ public class CarParkItem implements Serializable {
 	/**
 	 * id
 	 */
+	@TableId(type = IdType.AUTO)
 	private Long id;
 
 	/**
diff --git a/example/mqtt-car/src/main/java/org/dromara/mica/mqtt/server/entity/CarPassGather.java b/example/mqtt-car/src/main/java/org/dromara/mica/mqtt/server/entity/CarPassGather.java
index e94c8e4..e10c62e 100644
--- a/example/mqtt-car/src/main/java/org/dromara/mica/mqtt/server/entity/CarPassGather.java
+++ b/example/mqtt-car/src/main/java/org/dromara/mica/mqtt/server/entity/CarPassGather.java
@@ -1,5 +1,7 @@
 package org.dromara.mica.mqtt.server.entity;
 
+import com.baomidou.mybatisplus.annotation.IdType;
+import com.baomidou.mybatisplus.annotation.TableId;
 import com.baomidou.mybatisplus.annotation.TableName;
 import com.fasterxml.jackson.annotation.JsonFormat;
 import lombok.Data;
@@ -22,6 +24,7 @@ public class CarPassGather implements Serializable {
 	/**
 	 * id
 	 */
+	@TableId(type = IdType.AUTO)
 	private Long id;
 
 	/**
diff --git a/example/mqtt-car/src/main/java/org/dromara/mica/mqtt/server/entity/CarPassRecord.java b/example/mqtt-car/src/main/java/org/dromara/mica/mqtt/server/entity/CarPassRecord.java
index 9158868..4dbe504 100644
--- a/example/mqtt-car/src/main/java/org/dromara/mica/mqtt/server/entity/CarPassRecord.java
+++ b/example/mqtt-car/src/main/java/org/dromara/mica/mqtt/server/entity/CarPassRecord.java
@@ -1,5 +1,7 @@
 package org.dromara.mica.mqtt.server.entity;
 
+import com.baomidou.mybatisplus.annotation.IdType;
+import com.baomidou.mybatisplus.annotation.TableId;
 import com.baomidou.mybatisplus.annotation.TableName;
 import com.fasterxml.jackson.annotation.JsonFormat;
 import lombok.Data;
@@ -24,6 +26,7 @@ public class CarPassRecord implements Serializable {
 	/**
 	 * id
 	 */
+	@TableId(type = IdType.AUTO)
 	private Long id;
 
 	/**
diff --git a/example/mqtt-car/src/main/java/org/dromara/mica/mqtt/server/entity/Equipment.java b/example/mqtt-car/src/main/java/org/dromara/mica/mqtt/server/entity/Equipment.java
index f3a5bdf..7c37fb1 100644
--- a/example/mqtt-car/src/main/java/org/dromara/mica/mqtt/server/entity/Equipment.java
+++ b/example/mqtt-car/src/main/java/org/dromara/mica/mqtt/server/entity/Equipment.java
@@ -1,6 +1,8 @@
 package org.dromara.mica.mqtt.server.entity;
 
 
+import com.baomidou.mybatisplus.annotation.IdType;
+import com.baomidou.mybatisplus.annotation.TableId;
 import com.baomidou.mybatisplus.annotation.TableName;
 import lombok.Data;
 
@@ -16,6 +18,7 @@ public class Equipment implements Serializable {
 
 
 	/** 设备Id */
+	@TableId(type = IdType.AUTO)
 	private Long id;
 
 	/** 所属产品Id */