表person對應的model類:
@Entity
@Table(name = "person")
public class Person {
@Id
@GeneratedValue
private Long id;
private Integer age;
private String name;
@Column(name = "nick_name")
private String nickName;
private String company;
private Date birthday;
@ManyToMany(cascade = ALL, fetch = FetchType.LAZY)
private Set<Address> addresses = new HashSet<>();
// getter and setter
}
表address對應的model類:
@Entity
@Table(name = "address")
public class Address {
@Id
@GeneratedValue
private Long id;
private String street;
private Integer number;
@ManyToMany(mappedBy = "addresses")
private Set<Person> owners = new HashSet<>();
// getter and setter
}
數據庫訪問PersonRepository類:
public interface PersonRepository extends JpaRepository<Person, Long>, JpaSpecificationExecutor<Person> {
}
查詢年齡在10到35之間住在"Chengdu"的人。public List<Person> findAll(SearchRequest request) { Specification<Person> specification = new Specifications<Person>() .between("age", new Range<>(10, 35)) .eq("addresses.street", "Chengdu") .build(); return phoneRepository.findAll(specification); }
更多建議: