1.数据库增加uniques

2.mybatis

<?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.example.mapper.TerminalOfflineCountMapper">

    <insert id="batchInsertOrUpdate" parameterType="java.util.List">
        INSERT INTO terminal_offline_count (t_id, org_id, time, org_name, terminal_type)
        VALUES
        <foreach collection="list" item="item" separator=",">
            (#{item.t_id}, #{item.org_id}, #{item.time}, #{item.org_name}, #{item.terminal_type})
        </foreach>
        ON CONFLICT (t_id, time) DO UPDATE SET
        org_id = EXCLUDED.org_id,
        org_name = EXCLUDED.org_name,
        terminal_type = EXCLUDED.terminal_type;
    </insert>

</mapper>