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 ba34ad7..05a6d6c 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
@@ -40,16 +40,14 @@ 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<TopicCar> wrapper = new QueryWrapper<>();
-            wrapper.eq("carVinId",getTopicReq.getCarVin());
-            TopicCar car = (TopicCar) carMapper.selectObjs(wrapper);
-            if (StringUtils.isEmpty(new TopicCar[]{car})){
+            TopicCar topicCar = carMapper.selectById(getTopicReq.getCarVin());
+            if (StringUtils.isEmpty(new TopicCar[]{topicCar})){
                 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<TopicCar>().eq("carVinId",getTopicReq.getCarVin()));
-            return car.getTopic();
+            topicCar.setStatus(1);
+            carMapper.update(topicCar,new QueryWrapper<TopicCar>().eq("carVinId",getTopicReq.getCarVin()));
+            return topicCar.getTopic();
         }catch (Exception e){
             log.info(e.getMessage());
             return "god";