spring data jpa执行update和delete语句时报错处理

Spring Data JPA 删除语句

@Query(value = "delete t from tb_callback t where t.count >= :maxRetryCount and DATE_ADD(t.update_time, INTERVAL :keepTime DAY) < NOW()", nativeQuery = true)void deleteRetryMoreThan(@Param("maxRetryCount") int maxRetryCount, @Param("keepTime") int keepTime);

报错信息:

@Modifying@Query(value = "delete t from tb_callback t where t.count >= :maxRetryCount and DATE_ADD(t.update_time, INTERVAL :keepTime DAY) < NOW()", nativeQuery = true)void deleteRetryMoreThan(@Param("maxRetryCount") int maxRetryCount, @Param("keepTime") int keepTime);

,报错信息变为:

@Transactional
@Modifying
@Query(value = "delete t from tb_callback t where t.count >= :maxRetryCount and DATE_ADD(t.update_time, INTERVAL :keepTime DAY) < NOW()", nativeQuery = true)void deleteRetryMoreThan(@Param("maxRetryCount") int maxRetryCount, @Param("keepTime") int keepTime);

@Query单独使用会被识别为查询操作

@Modifying注解与@Query一起使用会将查询操作识别为修改查询，这样框架最终会生成一个更新的操作，而非查询

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