spring data jpa @Query注解中delete语句报错

项目中需要删除掉表中的一些数据

@Query("delete from EngineerServices es where es.engineerId = ?1")
int deleteByEgId(String engineerId);
但是提示了错误

org.hibernate.hql.QueryExecutionRequestException: Not supported for DML operations
通过查阅相关的资料发现，对于执行update和delete语句需要添加@Modifying注解

@Modifying
@Query("delete from EngineerServices es where es.engineerId = ?1")
int deleteByEgId(String engineerId);
不过，添加之后运行又出现了另一个错误

nested exception is javax.persistence.TransactionRequiredException: Executing an update/delete query
发现缺少Transaction，于是添加@Transactional

@Modifying
@Transactional
@Query("delete from EngineerServices es where es.engineerId = ?1")
int deleteByEgId(String engineerId);

到此，这条delete语句终于可以成功的执行了。