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                ??一站式輕松地調用各大LLM模型接口,支持GPT4、智譜、豆包、星火、月之暗面及文生圖、文生視頻 廣告
                在框架中持久層涉及到`QueryDsl`、`Spring Jdbc`、`Spring Data Jpa`可單獨用,可混合用,或都不用 > Spring Jdbc:適用于報表等...復雜條件下查詢 ``` String sql = "select `id`, `name` from `xxx_member` order by `sort` asc limit 20;"; return mJdbcTemplatePlus.queryForMap(sql); //return mJdbcTemplatePlus.queryForList(sql); //return mJdbcTemplatePlus.queryForObj(sql, Member.class); //return mJdbcTemplatePlus.queryForListObj(sql, Member.class); ``` > Spring Data Jpa:適用于日常操作。SDJ是對JPA規范抽象,支持不同實現(如`Hibernate`)支持多種不同查詢方式,更多見[官方文檔](https://docs.spring.io/spring-data/jpa/docs/current/reference/html/#jpa.query-methods.query-creation) ``` public interface MemberRepository extends JpaPlusRepository<Member, Long> { //1.默認生成所有屬性名查詢 Member findBy屬性名(String status); //2.內置屬性表達式(如:And、Equals.....) Member findByUserNameAndPassword(String username,String username); Member findByUserNameEquals(String username); //3.內置注解查詢 @Query(value = "select * from xxx_member where status=?1", nativeQuery = true) List<Member> findByStatus(String status); @Transactional @Modifying @Query(value = "update xxx_member set cros_ct=?1 , push_ct=?2 ", nativeQuery = true) int rest(Integer cros, Integer push); //4.內置QueryDsl (這里重點拓展,如下方法已內置在JpaPlusRepository里) List<Member> findAll(Predicate predicate) List<Member> findAll(Predicate predicate, Sort sort); Page<Member> findAll(JPAQuery<Member> query, Pageable pageable) .... } ``` > QueryDsl:適用于封裝持久操作。面向對象查詢框架,簡潔封裝,與Spring Jpa絕配,更多見[官方文檔](http://www.querydsl.com/static/querydsl/latest/reference/html/index.html) ``` QMember qm = QMember .member; List<Member> memberList = queryFactory.selectFrom(qm) .where(qm.name.like('%'+"小明"+'%') .and(qm.address.contains("武漢")) .and(qm.status.eq("0")) .and(qm.age.between(20, 30))) .fetch(); ``` > 其他ORM框架 > * 使用 `jdbc` 推薦 [querydsl](http://www.querydsl.com/) > * 使用 `mybatis` 推薦 [mybatis plus](https://mp.baomidou.com/) > * 使用 `hibernate` 推薦 [spring jpa](https://spring.io/projects/spring-data-jpa)
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