spring data jpa @Query注解中delete语句报错

项目中须要删除掉表中的一些数据

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

可是提示了错误

org.hibernate.hql.QueryExecutionRequestException: Not supported for DML operations

经过查阅相关的资料发现，对于执行update和delete语句须要添加@Modifying注解

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

不过，添加以后运行又出现了另外一个错误

nested exception is javax.persistence.TransactionRequiredException: Executing an update/delete query

发现缺乏Transaction，因而添加@Transactional

 

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

 

到此，这条delete语句终于能够成功的执行了。