hibernate 三张表关联问题

A表：

<set name="B表" inverse="true" lazy="true">

<key>

<column name="A表id" />

</key>

<one-to-many class="A表路径（包名点类名）" />

</set>

B表：

<many-to-one name="A表名" class="A表路径（包名点类名）"fetch="select">

<column name="B表中id" />

</many-to-one>

-------------------------------

<set name="C表" inverse="true" lazy="true">

<key>

<column name="B表id" />

</key>

<one-to-many class="B表路径（包名点类名）" />

</set>

C表：

<many-to-one name="B表名" class="B表路径（包名点类名）"fetch="select">

<column name="C表中id" />

</many-to-one>

ResourcesBooking 把它设置成Criteria criteria = this.getSession().createCriteria(ResourcesBooking.class)

criteria.create("resources","r")

criteria.add(Restrictions.in("r.字段", “值”))

criteria.add("r.libraryBranches.字段",值")

这样就是三个关系了