Mybatis动态拼接sql提高插入速度实例

void insertCaculatePlanData(@Param("excelName") String excelName,
                         @Param("CaculatePlanColumnName") List<String>CaculatePlanColumnName,
                         @Param("InsertIntoCaculatePlanData")List<Object> InsertIntoCaculatePlanData);

  <insert id="insertCaculatePlanData">
        insert into ${excelName} (
        <foreach item="item" collection="CaculatePlanColumnName" separator=",">
            ${item}
        </foreach>
        ) values (
        <foreach item="it" collection="InsertIntoCaculatePlanData"  separator=",">
            #{it}
        </foreach>
        )
  </insert>

void insertCaculatePlanDataBetter(@Param("excelName") String excelName,
                                @Param("CaculatePlanColumnName") List<String>CaculatePlanColumnName,
                                @Param("InsertIntoCaculatePlanData")List<List<Object>> InsertIntoCaculatePlanData);

    <!--优化的拼接插入语句-->
    <insert id="insertCaculatePlanDataBetter">
        INSERT INTO ${excelName}(
        <foreach item="item" collection="CaculatePlanColumnName" separator=",">
            ${item}
        </foreach>
        )
        VALUES
        <foreach item="o" collection="InsertIntoCaculatePlanData" separator=",">(
            <foreach item="itm" collection="o" separator=",">
                #{itm}
            </foreach>
            )
        </foreach>
    </insert>