单向List/Array映射：
Bean：
public class Car implements Serializable{ ???private int id ; ???????private String name ; ???....}public class User implements Serializable { ???????private int id ; ???????private String name ; ???????private List<Car> cars ; ???????....}xml:
Car.hbm.xml：<class name = "Car"> ???????<!-- id是来配置主键 ?????????????name是类中的哪个属性和主键映射 ????????????generator:表示主键的生成策略 ???????--> ???????<id name = "id"> ???????????<generator class="native" /> ???????</id> ???????<!-- property是用来把类中的属性和表的字段做一一对应 --> ???????<property name="name" /> ???????????</class>User.hbm.xml：<class name = "User"> ???????<!-- id是来配置主键 ?????????????name是类中的哪个属性和主键映射 ????????????generator:表示主键的生成策略 ???????--> ???????<id name = "id"> ???????????<generator class="native" /> ???????</id> ???????<!-- property是用来把类中的属性和表的字段做一一对应 --> ???????<property name="name" /> ???????????????<list name="cars"> ???????????<key column="uid" /> ???????????<list-index column="carindex" /> ???????????<one-to-many class="Car"/> ???????</list> ???</class>
单向Map映射：
Bean:
public class Car implements Serializable{ ???private int id ; ???????private String name ; ???....}public class User implements Serializable { ???????private int id ; ???????private String name ; ???????private Map<String,Car> cars ; ???????....}xml：
Car.hbm.xml:<class name = "Car"> ???????<!-- id是来配置主键 ?????????????name是类中的哪个属性和主键映射 ????????????generator:表示主键的生成策略 ???????--> ???????<id name = "id"> ???????????<generator class="native" /> ???????</id> ???????<!-- property是用来把类中的属性和表的字段做一一对应 --> ???????<property name="name" /> ???????????</class>User.hbm.xml:<class name = "User"> ???????<!-- id是来配置主键 ?????????????name是类中的哪个属性和主键映射 ????????????generator:表示主键的生成策略 ???????--> ???????<id name = "id"> ???????????<generator class="native" /> ???????</id> ???????<!-- property是用来把类中的属性和表的字段做一一对应 --> ???????<property name="name" /> ???????????????<map name="cars"> ???????????<key column="uid" /> ???????????<!-- <map-key记录键 --> ???????????<map-key column="mk" type = "string"/> ???????????<one-to-many class="Car"/> ???????</map> ???????????</class>
Hibernate映射关系配置（六）
原文地址：http://www.cnblogs.com/hyl-home/p/7577045.html