xml模板

1. mapper.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="com.db1.mapper.DB1UserMapper">
    <select id="findUsers" resultType="com.db1.domain.DB1User">
        select * from db1user;
    </select>
</mapper>