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business-service-dao/src/main/resources/mapper/UserHabitMapper.xml

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+<?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.ho.business.mapper.UserHabitMapper">
+
+    <sql id="Base_Column_List">
+        id,user_id,user_data
+    </sql>
+
+    <insert id="insertUserHabit" parameterType="com.ho.business.entity.UserHabit">
+        insert into user_habit
+        <trim prefix="(" suffix=")" suffixOverrides=",">
+            <if test="userId != null">user_id,</if>
+            <if test="userData != null">user_data,</if>
+
+        </trim>
+        <trim prefix="values (" suffix=")" suffixOverrides=",">
+            <if test="userId != null">  #{userId},</if>
+            <if test="userData != null">#{userData},</if>
+        </trim>
+    </insert>
+
+    <update id="updateById" parameterType="com.ho.business.entity.UserHabit">
+        update user_habit
+        <set>
+            <if test="userData != null">
+                user_data = #{userData},
+            </if>
+        </set>
+        where id = #{id}
+    </update>
+
+    <select id="selectByUserId" resultType="com.ho.business.entity.UserHabit">
+        SELECT <include refid="Base_Column_List"/>
+        FROM user_habit
+        WHERE user_id = #{userId}
+        limit 1
+    </select>
+
+</mapper>