Hibernate Annotation 共享主键一对一双向关联

写了这么几篇都是单向的关联，干脆后面的都写双向关联吧，今晚天就把Hibernate Annotation的问题都结了。

使用package com.zyp.examples;import javax.persistence.CascadeType;import javax.persistence.Column;import javax.persistence.Entity;import javax.persistence.GeneratedValue;import javax.persistence.GenerationType;import javax.persistence.Id;import javax.persistence.OneToOne;import javax.persistence.PrimaryKeyJoinColumn;import javax.persistence.Table;import org.hibernate.annotations.GenericGenerator;/** * User entity. @author MyEclipse Persistence Tools */@Entity@Table(name="user")public class User implements java.io.Serializable {// Fieldsprivate static final long serialVersionUID = 6210252824713630770L;@Id@Column(name="id")@GeneratedValue(generator="incrementGenerator", strategy=GenerationType.IDENTITY)@GenericGenerator(name="incrementGenerator", strategy="increment")private Integer id;@Column(name="name")private String name;@Column(name="password")private String password;@OneToOne(targetEntity=Profile.class, cascade={CascadeType.ALL})//这里用的是PrimaryKeyJoinColumn,不是JoinColumn@PrimaryKeyJoinColumnprivate Profile profile;// Constructors/** default constructor */public User() {}/** full constructor */public User(String name, String password) {this.name = name;this.password = password;}// Property accessorspublic Integer getId() {return this.id;}public void setId(Integer id) {this.id = id;}public String getName() {return this.name;}public void setName(String name) {this.name = name;}public String getPassword() {return this.password;}public void setPassword(String password) {this.password = password;}public Profile getProfile() {return profile;}public void setProfile(Profile profile) {this.profile = profile;}}?

//Profile.java

?

package com.zyp.examples;import javax.persistence.CascadeType;import javax.persistence.Column;import javax.persistence.Entity;import javax.persistence.GeneratedValue;import javax.persistence.GenerationType;import javax.persistence.Id;import javax.persistence.OneToOne;import javax.persistence.PrimaryKeyJoinColumn;import javax.persistence.Table;import org.hibernate.annotations.GenericGenerator;import org.hibernate.annotations.Parameter;/** * Profile entity. @author MyEclipse Persistence Tools */@Entity@Table(name="profile")public class Profile implements java.io.Serializable {// Fieldsprivate static final long serialVersionUID = -6436265401783499807L;@Id@Column(name="pid")@GenericGenerator(name="foreignKey", strategy="foreign", parameters=@Parameter(name="property", value="user"))@GeneratedValue(generator="foreignKey", strategy=GenerationType.IDENTITY)private Integer pid;@Column(name="email")private String email;@Column(name="address")private String address;@OneToOne(targetEntity=User.class, cascade={CascadeType.ALL}, mappedBy="profile")@PrimaryKeyJoinColumn(name="id", referencedColumnName="id")private User user;// Constructors/** default constructor */public Profile() {}/** full constructor */public Profile(Integer pid, String email, String address) {this.pid = pid;this.email = email;this.address = address;}// Property accessorspublic Integer getPid() {return this.pid;}public void setPid(Integer pid) {this.pid = pid;}public String getEmail() {return this.email;}public void setEmail(String email) {this.email = email;}public String getAddress() {return this.address;}public void setAddress(String address) {this.address = address;}public User getUser() {return user;}public void setUser(User user) {this.user = user;}}

package com.zyp.examples;import org.hibernate.Session;public class HibernateTest {public static void main(String[] args) {//addProfileByUser();//addUserByProfile();deleteFromUser();}public static void deleteFromUser(){Session session = HibernateUtil.getSessionFactory().openSession();session.getTransaction().begin();session.delete(session.load(User.class, new Integer(1)));session.getTransaction().commit();}public static void addProfileByUser(){Profile p = new Profile();p.setAddress("yunnan");p.setEmail("sdfds@1236.com");User user = new User();user.setName("zyp");user.setPassword("123");//注意这里是双向关系user.setProfile(p);p.setUser(user);Session session = HibernateUtil.getSessionFactory().openSession();session.getTransaction().begin();session.save(user);session.getTransaction().commit();}public static void addUserByProfile(){Profile p = new Profile();p.setAddress("yunnan");p.setEmail("sdfds@1236.com");User user = new User();user.setName("zyp");user.setPassword("123");//注意这里是双向关系user.setProfile(p);p.setUser(user);Session session = HibernateUtil.getSessionFactory().openSession();session.getTransaction().begin();//保存profilesession.save(p);session.getTransaction().commit();}}