查询之 一对多与多对一查询的综合：

关键代码

/**
     * 根据 ID 查找订单
     * @param orderid
     * @return
     */
    @Select("select * from tbl_orderform where orderform_id = #{orderId}")
        @Results(value={
                @Result(column="orderform_id",property="id",id=true),
                @Result(column="cost",property="cost"),
                @Result(column="orderdate",property="orderdate"),
                @Result(column="shipaddress_id",property="sadres",
                one=@One(select="cn.szxy.mapper.ShipAddressMapper.getShipAddressById")),
                @Result(column="customer_id",property="cus",
                one=@One(select="cn.szxy.mapper.UserMapper.getCustomerById")),
                @Result(column="orderform_id",property="lines",
                many=@Many(select="cn.szxy.mapper.OrderLineMapper.ListAllOrderLines"))  
        })

注意：数据库列名与实体属性名对应关系