/**
 *  批量插入数据
*/
int savePL(List<Map<String, Object>> mapList);

<!-- 批量插入数据 -->
<insert id="savePL" parameterType="java.util.List">
    INSERT INTO 库表名称 (
            ID
    )
    <foreach collection="mapList" item="item" index="index" separator="union all" open="(" close=")">
        SELECT
            #{item.id, jdbcType=INTEGER}
        FROM DUAL
    </foreach>
</insert>