通过注释实现关联时的Hibernate内连接

@Entity
@Table(name = "user")
public class User {
    @Id
    @GeneratedValue(strategy = GenerationType.IDENTITY)
    private Long id;

    private String name;

    @OneToOne
    @JoinColumn(name = "address_id")
    private Address address;

    // 省略其他属性和方法
}

@Entity
@Table(name = "address")
public class Address {
    @Id
    @GeneratedValue(strategy = GenerationType.IDENTITY)
    private Long id;

    private String city;

    // 省略其他属性和方法
}

// 查询用户及其对应的地址信息
String hql = "SELECT u FROM User u JOIN u.address a";
Query query = session.createQuery(hql);
List<User> users = query.list();

// 使用Criteria查询用户及其对应的地址信息
Criteria criteria = session.createCriteria(User.class);
criteria.createAlias("address", "a");
List<User> users = criteria.list();