Hibernate(3.2)一对多使用Set

数据库结构如下：
其中member表的team字段对应team的id

CREATE TABLE `member1` (
  `id` varchar(50) NOT NULL,
  `name` varchar(50) default NULL,
  `age` varchar(50) default NULL,
  `teamRole` varchar(50) default NULL,
  `team` varchar(50) default NULL,
PRIMARY KEY  (`id`)
) ENGINE=InnoDB DEFAULT CHARSET=gb2312;

CREATE TABLE `team1` (
  `id` varchar(50) NOT NULL,
  `name` varchar(50) default NULL,
PRIMARY KEY  (`id`)
) ENGINE=InnoDB DEFAULT CHARSET=gb2312;

持久层类

package example;

public class Member ...{
private String id;
private String name;
private String teamRole;
private Team team;
private String age;
public String getAge() {
return age;
}
public void setAge(String age) {
this.age = age;
}

public String getName() {
return name;
}
public void setName(String name) {
this.name = name;
}


public String getTeamRole() {
return teamRole;
}
public void setTeamRole(String teamRole) {
this.teamRole = teamRole;
}
public String getId() {
return id;
}
public void setId(String id) {
this.id = id;
}
public Team getTeam() {
return team;
}
public void setTeam(Team team) {
this.team = team;
}
}

package example;

import java.util.HashSet;
import java.util.Map;
import java.util.Set;

public class Team {
private String id;
private String name;
private Set members=new HashSet();
public String getId() {
return id;
}
public void setId(String id) {
this.id = id;
}

public Set getMembers() {
return members;
}
public void setMembers(Set members) {
this.members = members;
}
public String getName() {
return name;
}
public void setName(String name) {
this.name = name;
}
}

这是相应的HBM映射文件

<?xml version="1.0" encoding="utf-8"?>
<!DOCTYPE hibernate-mapping PUBLIC "-//Hibernate/Hibernate Mapping DTD 3.0//EN"
"http://hibernate.sourceforge.net/hibernate-mapping-3.0.dtd">
<!--
    Mapping file autogenerated by MyEclipse - Hibernate Tools
-->
<hibernate-mapping package="maponetomany">


<class name="Member" table="member1">
<id name="id" column="id">
<generator class="uuid.hex"></generator>
</id>
<property name="name" column="name"/>
<property name="age" column="age"/>
<property name="teamRole" column="teamRole" />
<many-to-one name="team" column="team" />
</class>
</hibernate-mapping>


<?xml version="1.0" encoding="utf-8"?>
<!DOCTYPE hibernate-mapping PUBLIC "-//Hibernate/Hibernate Mapping DTD 3.0//EN"
"http://hibernate.sourceforge.net/hibernate-mapping-3.0.dtd">
<!--
    Mapping file autogenerated by MyEclipse - Hibernate Tools
-->
<hibernate-mapping package="maponetomany">
<class name="Team" table="team1">
<id name="id" column="id">
<generator class="uuid.hex"></generator>
</id>
<property name="name" column="name"/>
<set name="members" inverse="true" cascade="save-update">
<key column="team"/>
<one-to-many class="Member"/>
</set>
</class>
</hibernate-mapping>

以下是测试代码：
这里要注意的是，member的teamRole属性是通过javabean的set方式注入的

public static void main(String[] args) {
        Configuration cfg=new Configuration();
        cfg.configure();
        SessionFactory sf=cfg.buildSessionFactory();
        Session session=sf.openSession();
        Transaction t=session.beginTransaction();

        Team team=new Team();
        team.setName("足球队-01");



        Member m1=new Member();
        m1.setName("01队01号");
        m1.setAge("22");
        m1.setTeam(team);
        m1.setTeamRole("中后卫");

        Member m2=new Member();
        m2.setName("01队02号");
        m2.setAge("33");
        m2.setTeam(team);
        m2.setTeamRole("守门员");

        team.getMembers().add(m1);
        team.getMembers().add(m2);


        session.save(team);


        t.commit();
        System.out.println("success");

    }

运行结果如下：
Hibernate: insert into team1 (name, id) values (?, ?)
Hibernate: insert into member1 (name, age, teamRole, team, id) values (?, ?, ?, ?, ?)
Hibernate: insert into member1 (name, age, teamRole, team, id) values (?, ?, ?, ?, ?)

可以看到，两个表的数据都插入了，而且关联正确（member的team值为team表的id）