我有一个像invalidDataAccessApiUsageException的异常

Question

以下是例外：

org.springframework.dao.InvalidDataAccessApiUsageException: Encountered array-valued parameter binding, but was expecting [java.lang.String (n/a)]; 
nested exception is java.lang.IllegalArgumentException: Encountered array-valued parameter binding, but was expecting [java.lang.String (n/a)]

这是我的存储库：

@Repository
public interface FirmRepository extends JpaRepository<Firm, Integer> {
    Page<Firm> findAll(Pageable page);

    List<Firm> findByParentFirm(Firm firm);

    @Query(value = "FROM Firm WHERE name = :name")
    Firm findByName(@Param("name") final String[] name);
}

这是我的服务：

   /**
     * Gets the Application type by name
     */
    public Firm getFirmByName(final String[] name) throws ResourceNotFoundException, ForbiddenOperationException {
        //LOGGER.debug("Getting the firm  with name=[{}]", strings);
        return firmRepository.findByName(name);
    }
}

Answer 1

以下内容应该有效

@Query( "FROM Firm WHERE name in :names" )
List<Firm> findByName(@Param("names") List<String> firmNames);

您可以将数组转换为列表List<String> firmNames = Arrays.asList(names);