DUPLICATE KEY UPDATE 循环使用（批量新增或更新时）

当批量新增或更新数据时 DUPLICATE KET UPDATE 语法  这个语法首先要在数据库表里设定除了主键以外 一个字段的 UNIQUE索引。

批量操作 实现代码

<insert id="batchSaveCommissionSummaryList" parameterType="list" >

    insert into commission_summary
      (enterprise_id,enterprise_name,in_province_amount,in_province_rate,in_province_commission,out_province_amount,out_province_rate,
      out_province_commission,total_amount,total_commission,month,create_time)
    values
    <foreach collection="list" item="item" index="index" separator=",">
      (#{item.enterpriseId},#{item.enterpriseName},#{item.inProvinceAmount},#{item.inProvinceRate},#{item.inProvinceCommission},#{item.outProvinceAmount},
      #{item.outProvinceRate},#{item.outProvinceCommission},#{item.totalAmount},#{item.totalCommission},#{item.month},#{item.createTime})
    </foreach>
    ON DUPLICATE KEY UPDATE
        enterprise_id = values(enterprise_id),
        enterprise_name = values(enterprise_name),

        in_province_amount = values(in_province_amount),

        in_province_rate = values(in_province_rate),

        in_province_commission = values(in_province_commission),

        out_province_amount = values(out_province_amount),

        out_province_rate =values(out_province_rate),

        out_province_commission = values(out_province_commission),

        total_amount = values(total_amount),

        total_commission = values(total_commission),

        month = values(month),

        create_time = values(create_time)
  </insert>