diff --git a/car-base-server/src/main/java/com/god/base/server/service/impl/TopLineServiceImpl.java b/car-base-server/src/main/java/com/god/base/server/service/impl/TopLineServiceImpl.java
index 0fe701d..ba34ad7 100644
--- a/car-base-server/src/main/java/com/god/base/server/service/impl/TopLineServiceImpl.java
+++ b/car-base-server/src/main/java/com/god/base/server/service/impl/TopLineServiceImpl.java
@@ -26,7 +26,7 @@ import java.util.List;
 public class TopLineServiceImpl extends ServiceImpl<TopicCarMapper, TopicCar>  implements TopLineService {
 
     @Autowired
-    private CarMapper carMapper;
+    private TopicCarMapper carMapper;
 
     /**
      * 车辆上线，同时返回主题
@@ -40,15 +40,15 @@ public class TopLineServiceImpl extends ServiceImpl<TopicCarMapper, TopicCar>  i
                 throw  new ServiceException("车辆vin不能为空");
             }
             //根据车辆vinId查询车辆信息
-            QueryWrapper<Car> wrapper = new QueryWrapper<>();
+            QueryWrapper<TopicCar> wrapper = new QueryWrapper<>();
             wrapper.eq("carVinId",getTopicReq.getCarVin());
-            Car car = (Car) carMapper.selectObjs(wrapper);
-            if (StringUtils.isEmpty(new Car[]{car})){
+            TopicCar car = (TopicCar) carMapper.selectObjs(wrapper);
+            if (StringUtils.isEmpty(new TopicCar[]{car})){
                 throw new ServiceException("车辆信息不存在");
             }
             //把车辆状态修改为上线 1
             car.setStatus(1);
-            carMapper.update(car,new QueryWrapper<Car>().eq("carVinId",getTopicReq.getCarVin()));
+            carMapper.update(car,new QueryWrapper<TopicCar>().eq("carVinId",getTopicReq.getCarVin()));
             return car.getTopic();
         }catch (Exception e){
             log.info(e.getMessage());