bms-java/src/main/resources/mapper/LogsMapping.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.zy.bms.mapper.LogsMapper">

    <select id="listPage" resultType="com.zy.bms.pojo.vo.LogsVo">
        SELECT
            t1.topic,
            t1.type,
            t1.open_num,
            t1.content,
            t1.m,
            t1.create_time,
            t2.remark
        FROM
            logs t1
        LEFT JOIN instructions t2 ON t1.m = t2.code
        <where>
            <if test="io.openNum != null and io.openNum != ''">
                AND t1.open_num LIKE CONCAT("%",#{io.openNum},"%")
            </if>
            <if test="io.type != null and io.type > -1">
                AND t1.type = #{io.type}
            </if>
            <if test="io.m != null and io.m !=''">
                AND t1.m = #{io.m}
            </if>
        </where>
        ORDER BY t1.create_time DESC
    </select>
</mapper>