Spring Data JPA-大规模更新不起作用

Question

I have a basic SpringBoot 2.1.1.RELEASE app. Using Spring Initializer, JPA, embedded Tomcat, and package as an executable JAR with a restful architecture I have this repository:

@Repository
public interface MenuPriceAlertNotificationRepository 
                    extends CrudRepository<MenuPriceAlertNotification, Long> {




    @Transactional
    @Modifying
    @Query("update MenuPriceAlertNotification n set n.read = :status where n.id in :notificationIdList and n.user.id = :userId")
    void changeNotificationListReadStatus(  @Param("notificationIdList") List<Long> notificationIdList, 
                                            @Param("userId") long userId, 
                                            @Param("status") boolean status);


}

but does not update the rows in the DB

Answer 1

Try this code,

    @Transactional(propagation =Propagation.REQUIRED,isolation=Isolation.SERIALIZABLE,readOnly=false,transactionManager="transactionManager")
@Query("update MenuPriceAlertNotification n set n.read = :status where n.id in :notificationIdList and n.user.id = :userId")
void changeNotificationListReadStatus(  @Param("notificationIdList") List<Long> notificationIdList, 
                                        @Param("userId") long userId, 
                                        @Param("status") boolean status);

if any issue inform.

Answer 2

I am not sure about what you want to do, but as an update query, you can also use the save() function from the CrudRepository by selecting the id primary key of the raw you want to update in your table.

An other point is the List<Long> notificationIdList parameters that you want to take into account, are you sure that you can give a list to @Param ? If not, you can use a for loop on the elements of the list and call the query function changeNotificationListReadStatus() at each iteration.