Hibernate one-to-many映射xml配置方法

首先创建一个Maven的工程，最简单的那种就行

然后创建两个Java Entity

package org.hibernate.tutorial.domain;

public class Address {
  private int id; 
  private String name;
  
  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;
  }
}

package org.hibernate.tutorial.domain;

import java.util.List;

public class User { 
  private int id; 
  private String name;
  private List<Address> locations;
  
  public int getId() {
    return id;
  }
  public void setId(int id) {
    this.id = id;
  }
  public List<Address> getLocations() {
    return locations;
  }
  public void setLocations(List<Address> locations) {
    this.locations = locations;
  }
  public String getName() {
    return name;
  }
  public void setName(String name) {
    this.name = name;
  }
  
}

采用XML方式配置hibernate映射

<?xml version="1.0"?>
<!DOCTYPE hibernate-mapping PUBLIC "-//Hibernate/Hibernate Mapping DTD 3.0//EN"
"http://hibernate.sourceforge.net/hibernate-mapping-3.0.dtd">
<hibernate-mapping package="org.hibernate.tutorial.domain">
  <class name="User" table="t_user">
    <id name="id">
      <generator class="native"/>
    </id>
    <property name="name"/>
    <list name="locations">
      <key column="user_id"/>
      <index column="lsequence"/>
      <one-to-many class="org.hibernate.tutorial.domain.Address"/>
    </list>
  </class>  
  <class name="Address" table="t_address">
    <id name="id">
      <generator class="native"/>
    </id>
    <property name="name"/>
  </class>
</hibernate-mapping>

Hibernatebe本身的配置如下

<?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>
    <property name="hibernate.connection.driver_class">com.mysql.jdbc.Driver</property>
    <property name="hibernate.connection.url">jdbc:mysql://localhost:3306/test</property>
    <property name="hibernate.connection.username">root</property>
    <property name="hibernate.connection.password">root</property>
    <property name="hibernate.dialect">org.hibernate.dialect.MySQLDialect</property>
    <property name="show_sql">true</property>
    <property name="format_sql">true</property>
    <mapping resource="org/hibernate/tutorial/domain/test.hbm.xml" />
   
</session-factory>
</hibernate-configuration>

然后开始写个测试例子

package org.hibernate.tutorial.domain;

import org.hibernate.SessionFactory;
import org.hibernate.boot.registry.StandardServiceRegistryBuilder;
import org.hibernate.cfg.Configuration;
import org.hibernate.service.ServiceRegistry;
 
public class HibernateUtil {
 
    private static SessionFactory sessionFactory;
     
    private static SessionFactory buildSessionFactory() {
        try {
            // Create the SessionFactory from hibernate.cfg.xml
            Configuration configuration = new Configuration();
            configuration.configure("hibernate.cfg.xml");
            System.out.println("Hibernate Configuration loaded");
             
            ServiceRegistry serviceRegistry = new StandardServiceRegistryBuilder().applySettings(configuration.getProperties()).build();
            System.out.println("Hibernate serviceRegistry created");
             
            SessionFactory sessionFactory = configuration.buildSessionFactory(serviceRegistry);
             
            return sessionFactory;
        }
        catch (Throwable ex) {
            System.err.println("Initial SessionFactory creation failed." + ex);
            ex.printStackTrace();
            throw new ExceptionInInitializerError(ex);
        }
    }
     
    public static SessionFactory getSessionFactory() {
        if(sessionFactory == null) sessionFactory = buildSessionFactory();
        return sessionFactory;
    }
}

import java.util.ArrayList;
import java.util.List;

import org.hibernate.Session;
import org.hibernate.tutorial.domain.Address;
import org.hibernate.tutorial.domain.HibernateUtil;
import org.hibernate.tutorial.domain.User;

public class App {
  public static void main(String[] args) {
    System.out.println("Hibernate one to many (XML Mapping)");
    Session session = HibernateUtil.getSessionFactory().openSession();
    session.beginTransaction();
    User user = new User();
    user.setName("shuai");
    Address add1 = new Address();
    add1.setName("addr1");
    Address add2 = new Address();
    add2.setName("addr2");
    List<Address> lst =  new ArrayList<Address>(2);
    lst.add(add1);
    lst.add(add2);
    user.setLocations(lst);
    session.saveOrUpdate(user);
    session.saveOrUpdate(add1);
    session.saveOrUpdate(add2);
    
    session.getTransaction().commit();
    System.out.println("Done");
  }
}

最后附上pom.xml

<project xmlns="http://maven.apache.org/POM/4.0.0" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/xsd/maven-4.0.0.xsd">
  <modelVersion>4.0.0</modelVersion>
  <groupId>kiwiplan</groupId>
  <artifactId>test</artifactId>
  <version>0.0.1-SNAPSHOT</version>
  <dependencies>
  	<dependency>
  		<groupId>org.slf4j</groupId>
  		<artifactId>slf4j-log4j12</artifactId>
  		<version>1.6.1</version>
  	</dependency>
  	<dependency>
      <groupId>mysql</groupId>
      <artifactId>mysql-connector-java</artifactId>
      <version>5.1.15</version>
    </dependency>
 
    <dependency>
        <groupId>org.hibernate</groupId>
        <artifactId>hibernate-core</artifactId>
        <version>4.3.5.Final</version>
    </dependency>
 
    <dependency>
      <groupId>javassist</groupId>
      <artifactId>javassist</artifactId>
      <version>3.12.1.GA</version>
    </dependency>
  </dependencies>
</project>