fix(人员模块): 修改了添加人员单位下没有人员报错的问题

dev-user/src/main/java/com/tykj/dev/device/user/subject/dao/UserDao.java

@@ -22,7 +22,7 @@ public interface UserDao extends JpaRepository<User, Integer>, JpaSpecificationE
     List<User> findAllByUserIdIn(List<Integer> userIds);
 
     @Query("select max(o.showOrder) from User o where o.unitsId = ?1")
-    int maxShowOrder(Integer unitsId);
+    Integer maxShowOrder(Integer unitsId);
 
     List<User> findAllByIsDel(Integer isDel);
 

dev-user/src/main/java/com/tykj/dev/device/user/subject/service/impl/UserServiceImpl.java

@@ -87,7 +87,11 @@ public class UserServiceImpl implements UserService {
         user.setPassword(encode);
         user.setNoPassword("qwer1234");
         Units units = unitsService.findById(user.getUnitsId());
-        user.setShowOrder(userDao.maxShowOrder(units.getUnitId())+1);
+        Integer maxShowOrder= userDao.maxShowOrder(units.getUnitId());
+        if (maxShowOrder==null){
+            maxShowOrder=0;
+        }
+        user.setShowOrder(maxShowOrder+1);
         //先判断用户名是否被注册
         User byName= userDao.findByNameAndUnitsId(user.getName(),user.getUnitsId());
         if (byName != null){