<?xml version="1.0" encoding="UTF-8"?>
<!DOCTYPE mapper
PUBLIC "-//mybatis.org//DTD Mapper 3.0//EN"
"http://mybatis.org/dtd/mybatis-3-mapper.dtd">
<mapper namespace="com.imooc.o2o.dao.ProductDao">
<resultMap id="productMap" type="com.imooc.o2o.entity.Product">
<id column="product_id" property="productId" />
<result column="product_name" property="productName" />
<result column="product_desc" property="productDesc" />
<result column="img_addr" property="imgAddr" />
<result column="normal_price" property="normalPrice" />
<result column="promotion_price" property="promotionPrice" />
<result column="priority" property="priority" />
<result column="create_time" property="createTime" />
<result column="last_edit_time" property="lastEditTime" />
<result column="enable_status" property="enableStatus" />
<result column="point" property="point" />
<association property="productCategory" column="product_category_id"
javaType="com.imooc.o2o.entity.ProductCategory">
<id column="product_category_id" property="productCategoryId" />
<result column="product_category_name" property="productCategoryName" />
<result column="product_category_desc" property="productCategoryDesc" />
<result column="priority" property="priority" />
<result column="create_time" property="createTime" />
<result column="last_edit_time" property="lastEditTime" />
</association>
<association property="shop" column="shop_id"
javaType="com.imooc.o2o.entity.Shop">
<id column="shop_id" property="shopId" />
<result column="owner_id" property="ownerId" />
<result column="shop_name" property="shopName" />
<result column="shop_desc" property="shopDesc" />
<result column="shop_addr" property="shopAddr" />
<result column="phone" property="phone" />
<result column="shop_img" property="shopImg" />
<result column="longitude" property="longitude" />
<result column="latitude" property="latitude" />
<result column="priority" property="priority" />
<result column="create_time" property="createTime" />
<result column="last_edit_time" property="lastEditTime" />
<result column="enable_status" property="enableStatus" />
<result column="advice" property="advice" />
</association>
<collection property="productImgList" column="product_id"
ofType="com.imooc.o2o.entity.ProductImg">
<id column="product_img_id" property="productImgId" />
<result column="img_addr" property="imgAddr" />
<result column="img_desc" property="imgDesc" />
<result column="priority" property="priority" />
<result column="create_time" property="createTime" />
<result column="product_id" property="productId" />
</collection>
</resultMap>
<select id="queryProductList" resultMap="productMap">
SELECT
product_id,
product_name,
product_desc,
img_addr,
normal_price,
promotion_price,
priority,
create_time,
last_edit_time,
enable_status,
point,
product_category_id,
shop_id
FROM
tb_product
<where>
<if
test="productCondition.shop!=null
and productCondition.shop.shopId!=null">
and shop_id = #{productCondition.shop.shopId}
</if>
<if
test="productCondition.productCategory!=null
and productCondition.productCategory.productCategoryId!=null">
and product_category_id =
#{productCondition.productCategory.productCategoryId}
</if>
<!-- 写like语句的时候 一般都会写成 like '% %' 在mybatis里面写就是应该是 like '%${name} %' 而不是
'%#{name} %' ${name} 是不带单引号的，而#{name} 是带单引号的 -->
<if test="productCondition.productName!=null">
and product_name like '%${productCondition.productName}%'
</if>
<if test="productCondition.enableStatus!=null">
and enable_status = #{productCondition.enableStatus}
</if>
</where>
ORDER BY
priority DESC
LIMIT #{rowIndex},#{pageSize};
</select>
<select id="queryProductCount" resultType="int">
SELECT count(1) FROM tb_product
<where>
<if
test="productCondition.shop!=null
and productCondition.shop.shopId!=null">
and shop_id = #{productCondition.shop.shopId}
</if>
<if
test="productCondition.productCategory!=null
and productCondition.productCategory.productCategoryId!=null">
and product_category_id =
#{productCondition.productCategory.productCategoryId}
</if>
<!-- 写like语句的时候 一般都会写成 like '% %' 在mybatis里面写就是应该是 like '%${name} %' 而不是
'%#{name} %' ${name} 是不带单引号的，而#{name} 是带单引号的 -->
<if test="productCondition.productName!=null">
and product_name like '%${productCondition.productName}%'
</if>
<if test="productCondition.enableStatus!=null">
and enable_status = #{productCondition.enableStatus}
</if>
</where>
</select>
<select id="queryProductByProductId" resultMap="productMap"
parameterType="Long">
<!-- 具体的sql -->
SELECT
p.product_id,
p.product_name,
p.product_desc,
p.img_addr,
p.normal_price,
p.promotion_price,
p.priority,
p.create_time,
p.last_edit_time,
p.enable_status,
p.point,
p.product_category_id,
p.shop_id,
pm.product_img_id,
pm.img_addr,
pm.img_desc,
pm.priority,
pm.create_time
FROM
tb_product p
LEFT JOIN
tb_product_img pm
ON
p.product_id =
pm.product_id
WHERE
p.product_id =
#{productId}
ORDER BY
pm.priority DESC
</select>
<insert id="insertProduct" parameterType="com.imooc.o2o.entity.Product"
useGeneratedKeys="true" keyProperty="productId" keyColumn="product_id">
INSERT INTO
tb_product(product_name,product_desc,img_addr,
normal_price,promotion_price,priority,create_time,
last_edit_time,enable_status,product_category_id,
shop_id)
VALUES
(#{productName},#{productDesc},#{imgAddr},
#{normalPrice},#{promotionPrice},#{priority},#{createTime},
#{lastEditTime},#{enableStatus},#{productCategory.productCategoryId},
#{shop.shopId})
</insert>
<update id="updateProduct" parameterType="com.imooc.o2o.entity.Product"
useGeneratedKeys="true" keyProperty="productId">
UPDATE tb_product
<set>
<if test="productName != null">product_name=#{productName},</if>
<if test="productDesc != null">product_desc=#{productDesc},</if>
<if test="imgAddr != null">img_addr=#{imgAddr},</if>
<if test="normalPrice != null">normal_price=#{normalPrice},</if>
<if test="promotionPrice != null">promotion_price=#{promotionPrice},</if>
<if test="priority != null">priority=#{priority},</if>
<if test="lastEditTime != null">last_edit_time=#{lastEditTime},</if>
<if test="enableStatus != null">enable_status=#{enableStatus},</if>
<if test="point != null">point=#{point},</if>
<if
test="productCategory != null
and productCategory.productCategoryId != null">
product_category_id=#{productCategory.productCategoryId}
</if>
</set>
WHERE product_id = #{productId}
AND shop_id=#{shop.shopId}
</update>
<update id="updateProductCategoryToNull" parameterType="Long"
keyProperty="product_id" useGeneratedKeys="true">
UPDATE tb_product
SET
product_category_id = null
WHERE product_category_id =
#{productCategoryId}
</update>
<delete id="deleteProduct">
DELETE FROM
tb_product
WHERE
product_id = #{productId}
AND shop_id=#{shopId}
</delete>
</mapper>
<insert> 标签中添加了useGeneratedKeys="true" keyProperty="productId"这两个属性没有报错。而在<update>标签中添加了这两个属性就报错，为什么呢？在<update>标签中我也没有使用resultType属性，为什么会报错呢？请大佬帮我解答一下谢谢。
