[update] 优化代码

signal-control-service/src/main/java/net/wanji/web/service/scheme/impl/CrossConfigServiceImpl.java

@@ -21,6 +21,7 @@ import net.wanji.web.po.scheme.CrossDirInfoPO;
 import net.wanji.web.service.scheme.CrossConfigService;
 import org.springframework.stereotype.Service;
 import org.springframework.transaction.annotation.Transactional;
+import org.springframework.util.CollectionUtils;
 
 import java.util.*;
 import java.util.stream.Collectors;
@@ -101,6 +102,7 @@ public class CrossConfigServiceImpl implements CrossConfigService {
         for (DirListElement dirListElement : dirList) {
             List<LaneListElement> laneList = dirListElement.getLaneList();
             Integer dir = dirListElement.getDir();
+            if (!CollectionUtils.isEmpty(laneList)) {
                 for (LaneListElement laneListElement : laneList) {
                     // 根据路口ID、方向、车道代码获取车道ID
                     String code = laneListElement.getName(); // 车道代码
@@ -121,6 +123,7 @@ public class CrossConfigServiceImpl implements CrossConfigService {
                     crossLaneLightsPOList.add(crossLaneLightsPO);
                 }
             }
+        }
         baseCrossLaneLightsMapper.deleteByCrossId(crossId);
         baseCrossLaneLightsMapper.insertBatch(crossLaneLightsPOList);
     }