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="UserMapper">
   <select id="selectUser" resultType="com.cesgroup.mybatiswork.entity.User">
      select * from user where id = #{id}
   </select>
   <insert id="insert" parameterType="com.cesgroup.mybatiswork.entity.User">
        INSERT INTO user (id, name, info)
              VALUES(#{id}, #{name}, #{info})
    </insert>
</mapper>