package com.example.hibernate;import java.util.Set;public class User {    private int id;    private String name;    private String head_image;    private String mobile;    private String email;    private String address;    private int age;    private String user_no;    private String password;    private Set<News> newsSet;            public int getId() {        return id;    }    public void setId(int id) {        this.id = id;    }    public String getName() {        return name;    }    public void setName(String name) {        this.name = name;    }    public String getHead_image() {        return head_image;    }    public void setHead_image(String head_image) {        this.head_image = head_image;    }    public String getMobile() {        return mobile;    }    public void setMobile(String mobile) {        this.mobile = mobile;    }    public String getEmail() {        return email;    }    public void setEmail(String email) {        this.email = email;    }    public String getAddress() {        return address;    }    public void setAddress(String address) {        this.address = address;    }    public int getAge() {        return age;    }    public void setAge(int age) {        this.age = age;    }    public String getUser_no() {        return user_no;    }    public void setUser_no(String user_no) {        this.user_no = user_no;    }    public String getPassword() {        return password;    }    public void setPassword(String password) {        this.password = password;    }    public Set<News> getNewsSet() {        return newsSet;    }    public void setNewsSet(Set<News> newsSet) {        this.newsSet = newsSet;    }    }

package com.example.hibernate;import java.util.Date;public class News {        private int id;    private String title;    private User user;                public News(String title) {        super();        this.title = title;    }        public int getId() {        return id;    }    public void setId(int id) {        this.id = id;    }    public String getTitle() {        return title;    }    public void setTitle(String title) {        this.title = title;    }    public User getUser() {        return user;    }    public void setUser(User user) {        this.user = user;    }}

<?xml version="1.0"?>  <!DOCTYPE hibernate-mapping PUBLIC       "-//Hibernate/Hibernate Mapping DTD 3.0//EN"      "http://www.hibernate.org/dtd/hibernate-mapping-3.0.dtd">        <hibernate-mapping>      <class name="com.example.hibernate.User" table="user" >           <id name="id">              <generator class="native"/>          </id>            <property name="name" column="name" />          <property name="head_image" column="head_image" />        <property name="mobile" column="mobile" />        <property name="email" column="email" />        <property name="address" column="address" />        <property name="age" column="age" />        <property name="user_no" column="user_no" />        <property name="password" column="password" />                      <set name="newsSet" table="news" cascade="save-update,delete">             <key column="user_id"></key>             <one-to-many class="com.example.hibernate.News"/>         </set>     </class>        </hibernate-mapping>  

<?xml version="1.0"?>  <!DOCTYPE hibernate-mapping PUBLIC       "-//Hibernate/Hibernate Mapping DTD 3.0//EN"      "http://www.hibernate.org/dtd/hibernate-mapping-3.0.dtd">        <hibernate-mapping>           <class name="com.example.hibernate.News" table="news">                 <id name="id">              <generator class="native"/>          </id>                    <property name="title" column="title" />          <many-to-one name="user" column="user_id" class="com.example.hibernate.User"></many-to-one>             </class>        </hibernate-mapping>  

<?xml version=‘1.0‘ encoding=‘UTF-8‘?>      <!DOCTYPE hibernate-configuration PUBLIC         "-//Hibernate/Hibernate Configuration DTD 3.0//EN"         "http://hibernate.sourceforge.net/hibernate-configuration-3.0.dtd">      <!-- 正文开始 -->  <hibernate-configuration>      <!--下面是数据库的基本连接信息，对一个应用来说，设置一个session-factory节点就够了，除非我们中间使用了多个数据库-->      <session-factory>          <!--用户名 -->          <property name="connection.username">root</property>          <!--url信息 -->          <property name="connection.url">jdbc:mysql://localhost:3306/hibernte_test</property>          <!--数据库方言信息-->          <property name="dialect">org.hibernate.dialect.MySQLDialect</property>          <!--密码 -->          <property name="connection.password">1111</property>          <!--数据库驱动信息 -->          <property name="connection.driver_class">com.mysql.jdbc.Driver</property>                   <property name="hibernate.show_sql">true</property>                   <!--指定Hibernate映射文件路径 -->          <mapping resource="com/example/hibernate/User.hbm.xml" />          <mapping resource="com/example/hibernate/News.hbm.xml" />      </session-factory> </hibernate-configuration> 

package com.example.hibernate;import java.util.HashSet;import org.hibernate.Session;import org.hibernate.SessionFactory;import org.hibernate.Transaction;import org.hibernate.cfg.Configuration;import org.hibernate.service.ServiceRegistry;import org.hibernate.service.ServiceRegistryBuilder;import org.junit.After;import org.junit.Before;import org.junit.Test;public class MyTest {    SessionFactory sessionFactory;    Session session;    Transaction transaction;        @Before    public void init(){        Configuration configuration = new Configuration().configure();        ServiceRegistry serviceRegistry = new ServiceRegistryBuilder().applySettings(configuration.getProperties()).buildServiceRegistry();        sessionFactory = configuration.buildSessionFactory(serviceRegistry);        session = sessionFactory.openSession();        transaction = session.beginTransaction();    }        @Test    public void save(){        User user = new User();        user.setAddress("福建厦门鼓浪屿");        user.setAge(10);        user.setEmail("1233454543@zzu.cn");        user.setHead_image("ïmg1.jpg");        user.setMobile("123224324");        user.setName("王天才");        user.setPassword("11111");        user.setUser_no("11111");        user.setNewsSet(new HashSet<News>());                News news1 = new News("测试一");        News news2 = new News("测试二");                news1.setUser(user);        news2.setUser(user);                user.getNewsSet().add(news1);        user.getNewsSet().add(news2);        
        //会多执行多余语句，切记需要添加inverse（本程序未添加）        session.save(user);    }        @After    public void destroy(){        transaction.commit();        session.close();        sessionFactory.close();    }}