add UserMapper.xml

<?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="org.apache.shardingsphere.example.common.mybatis.repository.MybatisUserRepository">

    <resultMap id="baseResultMap" type="org.apache.shardingsphere.example.common.entity.User">

        <result column="user_id" property="userId" jdbcType="INTEGER"/>

        <result column="user_name" property="userName" jdbcType="VARCHAR"/>

        <result column="pwd" property="pwd" jdbcType="VARCHAR"/>

        <result column="assisted_query_pwd" property="assistedQueryPwd" jdbcType="VARCHAR"/>

    </resultMap>

    <update id="createTableIfNotExists">

        CREATE TABLE IF NOT EXISTS t_user (user_id INT NOT NULL AUTO_INCREMENT, user_name VARCHAR(200), pwd VARCHAR(200), assisted_query_pwd VARCHAR(200), PRIMARY KEY (user_id));

    </update>

    <update id="truncateTable">

        TRUNCATE TABLE t_user;

    </update>

    <update id="dropTable">

        DROP TABLE IF EXISTS t_user;

    </update>

    <insert id="insert">

        INSERT INTO t_user (user_id, user_name, pwd) VALUES (#{userId,jdbcType=INTEGER}, #{userName,jdbcType=VARCHAR}, #{pwd,jdbcType=VARCHAR})

    </insert>

    <delete id="delete">

        DELETE FROM t_user WHERE user_id = #{userId,jdbcType=INTEGER};

    </delete>

    <select id="selectAll" resultMap="baseResultMap">

        SELECT * FROM t_user;

    </select>

</mapper>