<insert id="batchInsert" parameterType="list">
insert into mmall_order_item (id, order_no,user_id, product_id,
  product_name, product_image, current_unit_price,
  quantity, total_price, create_time,
  update_time)
values
<foreach collection="orderItemList" index="index" item="item" separator=",">
  (
  #{item.id},#{item.orderNo},#{item.userId},#{item.productId},#{item.productName},#{item.productImage},#{item.currentUnitPrice},#{item.quantity},#{item.totalPrice},now(),now()
  )
</foreach>
</insert>