初始化v1

target/classes/mapper/MessageMapper.xml

@@ -0,0 +1,42 @@
+<?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.MessageMapper">
+    <resultMap id="BaseResultMap" type="com.nlshop.entity.Message">
+        <id column="id" property="id"/>
+        <result column="user_id" property="userId"/>
+        <result column="merchant_id" property="merchantId"/>
+        <result column="order_id" property="orderId"/>
+        <result column="content" property="content"/>
+        <result column="reply" property="reply"/>
+        <result column="status" property="status"/>
+        <result column="create_time" property="createTime"/>
+        <result column="reply_time" property="replyTime"/>
+    </resultMap>
+
+    <insert id="insert" parameterType="com.nlshop.entity.Message" useGeneratedKeys="true" keyProperty="id">
+        INSERT INTO message (user_id, merchant_id, order_id, content, status)
+        VALUES (#{userId}, #{merchantId}, #{orderId}, #{content}, #{status})
+    </insert>
+
+    <select id="selectByUserId" resultMap="BaseResultMap">
+        SELECT * FROM message WHERE user_id = #{userId} ORDER BY create_time DESC
+    </select>
+
+    <select id="selectByMerchantId" resultMap="BaseResultMap">
+        SELECT * FROM message WHERE merchant_id = #{merchantId} ORDER BY create_time DESC
+    </select>
+
+    <select id="selectById" resultMap="BaseResultMap">
+        SELECT * FROM message WHERE id = #{id}
+    </select>
+
+    <update id="update" parameterType="com.nlshop.entity.Message">
+        UPDATE message
+        <set>
+            <if test="reply != null">reply = #{reply},</if>
+            <if test="status != null">status = #{status},</if>
+            <if test="replyTime != null">reply_time = #{replyTime},</if>
+        </set>
+        WHERE id = #{id}
+    </update>
+</mapper>