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。
spring data jpa @Query注解中delete语句报错
原文：http://www.cnblogs.com/purplelightning/p/4670941.html