hibernate----1-1

<?xml version=‘1.0‘ encoding=‘utf-8‘?>
<!DOCTYPE hibernate-configuration PUBLIC
"-//Hibernate/Hibernate Configuration DTD 3.0//EN"
"http://www.hibernate.org/dtd/hibernate-configuration-3.0.dtd">

<hibernate-configuration>

<session-factory>

<!-- Database connection settings -->
<property name="connection.driver_class">com.mysql.jdbc.Driver</property>
<property name="connection.url">jdbc:mysql://localhost:3306/hibernate</property>
<property name="connection.username">root</property>
<property name="connection.password">123456</property>

<!-- SQL dialect -->
<property name="dialect">org.hibernate.dialect.MySQL5InnoDBDialect</property>

<!-- Echo all executed SQL to stdout -->
<property name="show_sql">true</property>

<!-- Drop and re-create the database schema on startup -->
<property name="hbm2ddl.auto">update</property>

<!-- Names the annotated entity class -->
<mapping class="com.ij34.dao.Address"/>
<mapping class="com.ij34.dao.People"/>
</session-factory>

</hibernate-configuration>

package com.ij34.dao;

import javax.persistence.*;

@Entity
@Table(name="people_inf")
public class People implements java.io.Serializable{
    private static final long serialVersionUID = 1L;
    @Id @Column(name="people_id")
    @GeneratedValue(strategy=GenerationType.IDENTITY)
    private Integer id;
    private String name;
    private int age;
    @OneToOne(targetEntity=Address.class, mappedBy="people")
    private Address address;
    public Integer getId() {
        return id;
    }
    public void setId(Integer id) {
        this.id = id;
    }
    public String getName() {
        return name;
    }
    public void setName(String name) {
        this.name = name;
    }
    public int getAge() {
        return age;
    }
    public void setAge(int age) {
        this.age = age;
    }
    public Address getAddress() {
        return address;
    }
    public void setAddress(Address address) {
        this.address = address;
    }

}

package com.ij34.dao;

import javax.persistence.*;

@Entity
@Table(name="Address_inf")
public class Address{
    @Id @Column(name="address_id")
    @GeneratedValue(strategy=GenerationType.IDENTITY)
    private int addressId;
    private String message;
    @OneToOne(targetEntity=People.class)

    @JoinColumn(name="people_id" ,referencedColumnName="people_id" ,unique=true)
    private People people;
    public int getAddressId() {
        return addressId;
    }
    public void setAddressId(int addressId) {
        this.addressId = addressId;
    }
    public String getMessage() {
        return message;
    }
    public void setMessage(String message) {
        this.message = message;
    }
    public People getPeople() {
        return people;
    }
    public void setPeople(People people) {
        this.people = people;
    }

}

**************************

package com.ij34.web;

    import org.hibernate.Session;
    import org.hibernate.SessionFactory;
    import org.hibernate.Transaction;
    import org.hibernate.boot.registry.StandardServiceRegistryBuilder;
    import org.hibernate.cfg.Configuration;
    import org.hibernate.service.*;

import com.ij34.dao.Address;
import com.ij34.dao.People;
    public class test01 {
    public static void main(String[] args)throws Exception {
    //实例化Configuration
    Configuration conf=new Configuration().configure();
    ServiceRegistry SR=new StandardServiceRegistryBuilder().applySettings(conf.getProperties()).build();
    // 以Configuration实例创建SessionFactory实例
    SessionFactory SF=conf.buildSessionFactory(SR);
    //create session
    Session session=SF.openSession();
    //start 事务
    Transaction tx=session.beginTransaction();
    People person = new People();
    person.setAge(29);
    // 为复合主键的两个成员设置值
   People people=new People();
   people.setAge(22);
   people.setName("林彪");
   Address a=new Address();
   a.setMessage("广州");
   a.setPeople(people);
   session.save(people);
   session.persist(a);
    tx.commit();
    session.close();
    SF.close();
    }
    }