diff --git a/pqs-device/common-device-biz/pom.xml b/pqs-device/common-device-biz/pom.xml
index ab6181178..d651e7914 100644
--- a/pqs-device/common-device-biz/pom.xml
+++ b/pqs-device/common-device-biz/pom.xml
@@ -60,6 +60,11 @@
             <artifactId>pqs-influx</artifactId>
             <version>${project.version}</version>
         </dependency>
+        <dependency>
+            <groupId>com.baomidou</groupId>
+            <artifactId>dynamic-datasource-spring-boot-starter</artifactId>
+            <version>3.5.1</version>
+        </dependency>
     </dependencies>
 
 </project>
diff --git a/pqs-device/common-device-biz/src/main/java/com/njcn/device/biz/mapper/OverLimitWlMapper.java b/pqs-device/common-device-biz/src/main/java/com/njcn/device/biz/mapper/OverLimitWlMapper.java
new file mode 100644
index 000000000..1208e32bd
--- /dev/null
+++ b/pqs-device/common-device-biz/src/main/java/com/njcn/device/biz/mapper/OverLimitWlMapper.java
@@ -0,0 +1,22 @@
+package com.njcn.device.biz.mapper;
+
+
+import com.baomidou.dynamic.datasource.annotation.DS;
+import com.baomidou.mybatisplus.core.mapper.BaseMapper;
+import com.njcn.device.biz.pojo.po.Overlimit;
+import org.apache.ibatis.annotations.Mapper;
+
+/**
+ * <p>
+ *  Mapper 接口
+ * </p>
+ *
+ * @author xy
+ * @since 2022-01-04
+ */
+@DS("sjzx")
+@Mapper
+public interface OverLimitWlMapper extends BaseMapper<Overlimit> {
+
+
+}