<?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.casic.missiles.mapper.system.SystemSignMapper"> <!-- 通用查询映射结果 --> <resultMap id="BaseResultMap" type="com.casic.missiles.model.SystemSign"> <id column="id" property="id" /> <result column="sign_no" property="signNo" /> <result column="sign_name" property="signName" /> <result column="sign_desc" property="signDesc" /> <result column="sign_director" property="signDirector" /> <result column="sign_type" property="signType" /> <result column="minio_file_name" property="minioFileName" /> <result column="is_del" property="isDel" /> <result column="create_time" property="createTime" /> <result column="update_time" property="updateTime" /> </resultMap> <!-- 通用查询结果列 --> <sql id="Base_Column_List"> id, sign_no, sign_name, sign_desc, sign_director, sign_type, minio_file_name, is_del, create_time, update_time </sql> <select id="selectMaxSignNo" resultType="java.lang.Long"> SELECT IFNULL(max(RIGHT(sign_no, 12)), 0) from system_sign </select> </mapper>