fix 空指针

netflix-service/src/main/java/com/cyksj/service/exchange/impl/ExchangeCodeServiceImpl.java

@@ -177,7 +177,7 @@ public class ExchangeCodeServiceImpl extends ServiceImpl<ExchangeCodeMapper, Exc
 		GroupsRelation relation = null;
 		if (groups == null) {
 			//新增车位 并关联
-			createNewGroupTripsAndRelation(sku, groups, relation);
+			relation = createNewGroupTripsAndRelation(sku, groups, relation);
 		} else {
 			//寻找快满编车队进行占座
 			relation = groupsRelationMapper.selectOne(Wrappers.lambdaQuery(GroupsRelation.class)
@@ -189,7 +189,7 @@ public class ExchangeCodeServiceImpl extends ServiceImpl<ExchangeCodeMapper, Exc
 			);
 			//如果占位失败 新增车位并关联
 			if (relation == null) {
-				createNewGroupTripsAndRelation(sku, groups, relation);
+				relation = createNewGroupTripsAndRelation(sku, groups, relation);
 			}
 		}
 
@@ -265,7 +265,7 @@ public class ExchangeCodeServiceImpl extends ServiceImpl<ExchangeCodeMapper, Exc
 	/**
 	 * 新增新车位并关联车位
 	 */
-	private void createNewGroupTripsAndRelation(GoodsDonSku sku, GroupsTrips groups, GroupsRelation relation) {
+	private GroupsRelation createNewGroupTripsAndRelation(GoodsDonSku sku, GroupsTrips groups, GroupsRelation relation) {
 		//通过兑换码兑换车票 新增车位
 		if (groups == null) {
 			groups = new GroupsTrips();
@@ -293,5 +293,6 @@ public class ExchangeCodeServiceImpl extends ServiceImpl<ExchangeCodeMapper, Exc
 			groupsRelation.setStatus(GroupsRelation.Status.none);
 			groupsRelationMapper.insert(groupsRelation);
 		}
+		return relation;
 	}
 }