<?xml version="1.0" encoding="UTF-8"?>
<!DOCTYPE mapper PUBLIC "-//mybatis.org//DTD Mapper 3.0//EN" "mybatis-3-mapper.dtd" >
<mapper namespace="com.baizhi.ty.dao.CategoryDAO">
<resultMap type="Category" id="CategoryMap">
<id column="firstId" property="id"/>
<result column="firstname" property="categoryname" />
<result column="category_id" property="category_id"/>
<result column="goodscounts" property="goodscounts"/>
<collection property="children" javaType="java.util.List" ofType="category">
<id column="secondId" property="id"/>
<result column="secondname" property="categoryname"/>
<result column="category_id" property="category_id"/>
<result column="goodscounts2" property="goodscounts"/>
</collection>
</resultMap>
<!-- //查询出类别
List<Category> selectAllCategory(); -->
<select id="selectAllCategory" resultMap="CategoryMap">
select d1.id as firstId ,d1.categoryname as firstname,
d1.goodscounts,
d2.id as secondId,d2.categoryname as secondname,
d2.category_id,d2.goodscounts
from d_category d1
left join d_category d2
on d1.id = d2.category_id
where d1.category_id is null
</select>
<!-- //查询一级类别
Category selectOneCategory(@Param("oneId")Integer oneId); -->
<select id="selectOneCategory" resultMap="CategoryMap">
select d1.id as firstId ,d1.categoryname as firstname,
d1.goodscounts,
d2.id as secondId,d2.categoryname as secondname,
d2.category_id,d2.goodscounts as goodscounts2
from d_category d1
left join d_category d2
on d1.id = d2.category_id
where d1.category_id is null
<!-- 二级类别 -->
<if test="oneId !=null ">
and d2.category_id = ${oneId}
</if>
<!-- 一级类别 -->
<if test="oneId == null">
and d1.id = ${twoId}
</if>
</select>
<!-- //显示位置
Category selectpositionCategory(@Param("oneId")Integer oneId,@Param("twoId")Integer twoId); -->
<select id="selectpositionCategory" resultMap="CategoryMap">
select d1.id as firstId ,d1.categoryname as firstname,
d1.goodscounts,
d2.id as secondId,d2.categoryname as secondname,
d2.category_id,d2.goodscounts as goodscounts2
from d_category d1
left join d_category d2
on d1.id = d2.category_id
where d1.category_id is null
<!-- 二级类别 -->
<if test="oneId !=null ">
and d2.id = ${twoId}
</if>
<!-- 一级类别 -->
<if test="oneId == null">
and d1.id = ${twoId}
</if>
</select>
<!--（1） 编辑推荐 -->
<!-- //查询书的信息
public Good selectById(String twoId); -->
<select id="selectById" resultType="Good">
select * from d_good where id=#{id}
</select>
<!-- //查询书的信息
List<Good> selectGood(); -->
<select id="selectGood" resultType="Good">
select id,oneid,twoid,goodname,goodprice,dangprice,middleprice,grade,author,fromarea,fromtime,banci,
printtime,isbn,zishu,yeshu,kaiben,paper,baozhuang,isup,imguri,sellnum
from d_good
where isup=1
</select>
<!-- 查询图书的总个数集合
Integer selectAllBook();-->
<select id="selectAllBook" resultType="Integer">
select count(*) from d_good
where
<if test="oneId==null">
oneId=${twoId}
</if>
<if test="oneId!=null">
twoId=${twoId}
</if>
</select>
<!--分页查询图书 -->
<select id="queryPageBook" resultType="Good">
select * from (
select e.*,rownum rn from
(select * from (
select * from d_good
where
<if test="oneId==null">
oneId=${twoId}
</if>
<if test="oneId!=null">
twoId=${twoId}
</if>
) order by ${order}) e
) where rn between ${beginResult} and ${lastResult}
</select>
<!--(2)新书上架 -->
<!-- //新销书
List<Good> selectNewBook();-->
<select id="selectNewBook" resultType="Good">
select b.* from (
select a.*,rownum rn from (
select id,oneid,twoid,goodname,goodprice,dangprice,middleprice,grade,author,fromarea,fromtime,banci,
printtime,isbn,zishu,yeshu,kaiben,paper,baozhuang,isup,imguri,sellnum
from d_good
order by fromtime desc
)a)b
where rn between 1 and 8
</select>
<!--（3）热卖图书 -->
<!-- //热销书
List<Good> selectHotBook(); -->
<select id="selectHotBook" resultType="Good">
select b.* from (
select a.*,rownum rn from (
select id,oneid,twoid,goodname,goodprice,dangprice,middleprice,grade,author,fromarea,fromtime,banci,
printtime,isbn,zishu,yeshu,kaiben,paper,baozhuang,isup,imguri,sellnum
from d_good
order by sellnum desc
)a)b
where rn between 1 and 8
</select>
<!--（4）新书热卖 -->
<!-- //新热销书
List<Good> selectHotAndNewBook();-->
<select id="selectHotAndNewBook" resultType="Good">
select b.* from (
select a.*,rownum rn from (
select * from d_good
order by fromtime desc,sellnum desc
)a)b
where rn between 1 and 8
</select>
<!--添加部门sql--> <insert id="insertDept">
<selectKey keyProperty="id" order="BEFORE" resultType="String">
select seq_dept.nextval from dual
<!-- select sys_guid() from dual -->
</selectKey>
insert into department1(id,name) values(#{id},#{name})
</insert> </mapper>
