add

backend/src/main/resources/mappers/PaymentMapper.xml

@@ -0,0 +1,23 @@
+<?xml version="1.0" encoding="UTF-8" ?>
+<!DOCTYPE mapper
+        PUBLIC "-//mybatis.org//DTD Mapper 3.0//EN"
+        "https://mybatis.org/dtd/mybatis-3-mapper.dtd">
+<mapper namespace="com.car.mapper.PaymentMapper">
+    <resultMap id="PaymentMap" type="com.car.entity.Payment">
+        <id column="id" property="id"/>
+        <result column="order_id" property="orderId"/>
+        <result column="user_id" property="userId"/>
+        <result column="amount" property="amount"/>
+        <result column="type" property="type"/>
+        <result column="created_at" property="createdAt"/>
+    </resultMap>
+
+    <insert id="insert" useGeneratedKeys="true" keyProperty="id">
+        insert into payments(order_id, user_id, amount, type, created_at)
+        values (#{orderId}, #{userId}, #{amount}, #{type}, now())
+    </insert>
+
+    <select id="findByUserId" resultMap="PaymentMap">
+        select * from payments where user_id = #{userId} order by id desc
+    </select>
+</mapper>