mybatis 批量更新

<update id="batchUpdate" parameterType="java.util.List">

 <foreach collection="list" item="item" index="index" open="" close="" separator=";">

 update test 

<set> test=${item.test}+1 </set>

 where id = ${item.id} 

</foreach> 

</update>

利用foreach函数进行更新

批量插入。

<insert id ="insertBatch" parameterType="List" > 
    insert into REAL_DATA_HW( M_LINE_NO,M_TIME,HW_NUM, VOL_A,VOL_B,VOL_C )
    values 
    <foreach collection ="list" item ="obj" index ="index" separator =","> 
       ( #{obj.M_LINE_NO},to_date(#{obj.M_TIME},'yyyy-MM-dd hh24:mi:ss'),#{obj.HW_NUM},
       #{obj.VOL_A},#{obj.VOL_B},#{obj.VOL_C} ) 
    </foreach> 
</insert>