hibernate 表之间的关联

每天学习一点.每天进步一点.我也会成功的.. 加油!

one to one

<one-to-one name="属性名"
            class="类名"
            cascade="all||none"是否级联>

one to many

<set name = "属性名" 
     table="对应的表名"
     lazy="true||false" 延迟加载
     cascade="all||none" 同上
      order-by =" 属性名+ asc||desc"
>
<key = column ="外键列名"/>
<one-to-many class="对应的类名"/>
</set>

many to one

<many-to-one name="属性名"
             class ="类名"
             insert="true||false"
             update="true||false"
             cascade="all||none"
             column="外部属性">

many to many

<set name="属性名"
     table="对应的第三个表"
     lazy="false||true"
     inverse="false||true" 反转,是否受控
>
<key column ="属性">
<many-to-many class="类名" column ="对应第三表中的属性名">
</set>