hibernate级联配置

Posted 2020-08-21 joyous

//注解方法配置

1)一对多

private List<TNoticeaffix> ffi;
@OneToMany(cascade =CascadeType.ALL,mappedBy="T_NOTICE",targetEntity=TNoticeaffix.class)
public List<TNoticeaffix> getFfi() {
return ffi;
}

 

2)一对一（一对一和一对多的配置基本一样）

private LTNoticeaffix ffi;
@OneToMany(cascade =CascadeType.ALL,mappedBy="T_NOTICE",targetEntity=TNoticeaffix.class)
public TNoticeaffix getFfi() {
return ffi;
}

 

3）

private Set<TMenu> menus= new HashSet<TMenu>();

@ManyToMany
@JoinTable(name="t_role_menu",joinColumns [email protected](name="rid"),inverseJoinColumns [email protected](name="mid"))
public Set<TMenu> getMenus() {
return menus;
}

 

 

2.配置文件方法

1）一对多

<set lazy="true" name="user" cascade="all" inverse="false" fetch="select" batch-size="2">
<key column="userid"></key>
<one-to-many class="cn.hd.onetomany.TUserconf"/>
</set>

2）一对一

<!-- 主键关联 -->
<one-to-one name="details" class="cn.hd.model.TUserdetails" ></one-to-one>
<one-to-one name="conf" class="cn.hd.model.TUserconf" property-ref="user" cascade="save-update"></one-to-one>