Hibernate Annotation 一对一配置

Card.java

@Entity
@Table(name="t_card")
@Cache(usage=CacheConcurrencyStrategy.READ_WRITE)
public class Card {

	private int id;
	private String cardnum;
	private User user;
	
	@Id
	@GeneratedValue(generator="myPK")
	@GenericGenerator(name="myPK",strategy="foreign",parameters={@Parameter(name="property",value="user")})
	public int getId() {
		return id;
	}
	public void setId(int id) {
		this.id = id;
	}
	public String getCardnum() {
		return cardnum;
	}
	public void setCardnum(String cardnum) {
		this.cardnum = cardnum;
	}
	
	@OneToOne(mappedBy="card")
	public User getUser() {
		return user;
	}
	public void setUser(User user) {
		this.user = user;
	}
	
	
}

Test.java

User user = new User();
user.setUsername("uu");
user.setPassword("uuuu");
		
Card card = new Card();
card.setCardnum("x09876");
		
user.setCard(card);
card.setUser(user);
		
session.save(user);
session.save(card);

User.java

@Entity
@Table(name="t_user")
@Cache(usage=CacheConcurrencyStrategy.READ_WRITE)
public class User {

	private int id;
	private String username;
	private String password;
	private List<Address> addressList;
	private Card card;
	
	@Id
	@GeneratedValue(strategy=GenerationType.IDENTITY)
	public int getId() {
		return id;
	}
	public void setId(int id) {
		this.id = id;
	}
	
	@Column(name="username")
	public String getUsername() {
		return username;
	}
	
	@Transient
	public String getMessage() {
		return "xixi";
	}
	
	public void setUsername(String username) {
		this.username = username;
	}
	public String getPassword() {
		return password;
	}
	public void setPassword(String password) {
		this.password = password;
	}
	
	@OneToMany(mappedBy="user")
	@OrderBy("id desc")
	public List<Address> getAddressList() {
		return addressList;
	}
	public void setAddressList(List<Address> addressList) {
		this.addressList = addressList;
	}
	
	
	@OneToOne
	@PrimaryKeyJoinColumn
	public Card getCard() {
		return card;
	}
	public void setCard(Card card) {
		this.card = card;
	}

}