publicinterfaceMemberRepositoryextendsJpaRepository<Member,Long> { @Query("select m from Member m where m.username = :name")MemberfindMembers(@Param("name") String username);// 컬렉션 파라미터 바인딩 @Query("select m from Member m where m.username in :names")List<Member> findByNames(@Param("names") List<String> names);}