Hibernate中的一对一注解配置

package cn.OneToOne2017109.entity;import javax.persistence.*;/** * Created by YSS on 2017/10/9. */

@Entity
@Table(name = "Card")
public class Card {
    @Id
    @GeneratedValue
    private Integer cid;
    @Column
    private String cnum;
    @OneToOne(mappedBy = "card",cascade = CascadeType.ALL)
    private People people;


    public Integer getCid() {
        return cid;
    }

    public void setCid(Integer cid) {
        this.cid = cid;
    }

    public String getCnum() {
        return cnum;
    }

    public void setCnum(String cnum) {
        this.cnum = cnum;
    }

    public People getPeople() {
        return people;
    }

    public void setPeople(People people) {
        this.people = people;
    }
}

@Entity@Table(name = "People")public class People { ???@Id ???@GeneratedValue ???private Integer pid; ???@Column ???private String pname; ???@OneToOne ???@JoinColumn(name = "cid") ???private Card card; ???public Integer getPid() { ???????return pid; ???} ???public void setPid(Integer pid) { ???????this.pid = pid; ???} ???public String getPname() { ???????return pname; ???} ???public void setPname(String pname) { ???????this.pname = pname; ???} ???public Card getCard() { ???????return card; ???} ???public void setCard(Card card) { ???????this.card = card; ???}}

public class testonetoone { ???Configuration cfg; ???SessionFactory factory; ???Session session; ???Transaction tx; ???@Before ???public void mybefor(){ ???????cfg=new Configuration().configure(); ???????factory=cfg.buildSessionFactory(); ???????session=factory.openSession(); ???????tx=session.beginTransaction(); ???} ???@After ???public void myafter(){ ???????tx.commit(); ???} ???@Test ???public void test03() { ???????People people=new People(); ???????Card card=new Card(); ???????people.setPname("123"); ???????card.setCnum("123133"); ???????card.setPeople(people); ???????people.setCard(card); ???????session.save(card); ???}}