java - spring CrudRepository 是否支持列表的 deleteBy？

Question

Spring Data CrudRepository 是否提供通过非主键的属性删除条目列表？

public interface MyRepository extends CrudRepository<MyEntity, Long> {
    @Modifying
    @Transactional
    public void deleteByName(List<String> names);
}

Answer 1

是的，这是可能的，documentation解释 In关键字与以下示例。示例进一步表明，列表参数不必是实体主键的类型:

In -> findByAgeIn(Collection<Age> ages)

In and NotIn also take any subclass of Collection as parameter as well as arrays or varargs.

然后这又可以应用于您的删除查询:

In addition to query methods, query derivation for both count and delete queries, is available.

类似:

void deleteByNamesIn(List<String> names);