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many-to-many为例,有Position和User两张表,一个Position可以有多个Users,一个User也可以有多个 Position,中间的关联表为 test_user_position 。通过在PO中加入XDoclet,自动生成hbm配置文件。不废话,看代码。
package test;
import java.util.Set;
import java.util.TreeSet;
/** *//**
* @hibernate.class table="test_position"
*/
public class Position ...{
private int id;
private int name;
private Set<Users> users = new TreeSet<Users>();
/** *//**
* @hibernate.id generator-class="identity" type="int"
*/
public int getId() ...{
return id;
}
public void setId(int id) ...{
this.id = id;
}
/** *//**
* @hibernate.property length="25"
*/
public int getName() ...{
return name;
}
public void setName(int name) ...{
this.name = name;
}
/** *//**
* @hibernate.set inverse="true" lazy="true" table="test_user_position"
* @hibernate.collection-key column="position_id"
* @hibernate.collection-many-to-many class="test.Users" column="user_id"
*/
public Set<Users> getUsers() ...{
return users;
}
public void setUsers(Set<Users> users) ...{
this.users = users;
}
}
package test;
import java.util.Set;
import java.util.TreeSet;
/** *//**
* @hibernate.class <A title=table href="http://www.alimama.com/membersvc/buyadzone/buy_ad_zone.htm?adzoneid=892989 " target=_blank>table</A>="test_position"