AlertMapper.xml

<?xml version="1.0" encoding="UTF-8" ?>
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<!DOCTYPE mapper PUBLIC "-//mybatis.org//DTD Mapper 3.0//EN" "http://mybatis.org/dtd/mybatis-3-mapper.dtd" >
<mapper namespace="org.apache.dolphinscheduler.dao.mapper.AlertMapper">
    <sql id="baseSql">
        id
        , title, content, alert_status, log,
        alertgroup_id, create_time, update_time
    </sql>
    <select id="listAlertByStatus" resultType="org.apache.dolphinscheduler.dao.entity.Alert">
        select
        <include refid="baseSql"/>
        from t_ds_alert
        where alert_status = #{alertStatus}
    </select>

    <insert id="insertAlertWhenServerCrash">
        insert into t_ds_alert(title, content, alert_status, log, alertgroup_id, create_time, update_time)
        SELECT #{alert.title}, #{alert.content}, #{alert.alertStatus.code}, #{alert.log}, #{alert.alertGroupId},
               #{alert.createTime}, #{alert.updateTime}
        from t_ds_alert
        where content = #{alert.content} and alert_status = #{alert.alertStatus.code}
        having count(*) = 0
    </insert>
</mapper>