初始化v1

target/classes/mapper/ProductToppingMapper.xml

@@ -0,0 +1,37 @@
+<?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.nlshop.mapper.ProductToppingMapper">
+    <resultMap id="BaseResultMap" type="com.nlshop.entity.ProductTopping">
+        <id column="id" property="id"/>
+        <result column="product_id" property="productId"/>
+        <result column="topping_name" property="toppingName"/>
+        <result column="price" property="price"/>
+    </resultMap>
+
+    <insert id="insert" parameterType="com.nlshop.entity.ProductTopping" useGeneratedKeys="true" keyProperty="id">
+        INSERT INTO product_topping (product_id, topping_name, price)
+        VALUES (#{productId}, #{toppingName}, #{price})
+    </insert>
+
+    <select id="selectByProductId" resultMap="BaseResultMap">
+        SELECT * FROM product_topping WHERE product_id = #{productId}
+    </select>
+
+    <select id="selectById" resultMap="BaseResultMap">
+        SELECT * FROM product_topping WHERE id = #{id}
+    </select>
+
+    <update id="update" parameterType="com.nlshop.entity.ProductTopping">
+        UPDATE product_topping
+        SET topping_name = #{toppingName}, price = #{price}
+        WHERE id = #{id}
+    </update>
+
+    <delete id="delete">
+        DELETE FROM product_topping WHERE id = #{id}
+    </delete>
+
+    <delete id="deleteByProductId">
+        DELETE FROM product_topping WHERE product_id = #{productId}
+    </delete>
+</mapper>