MyBatis批量插入模板

<insert id="insertBatch" parameterType="List">
　　INSERT INTO TStudent(name,age)
　　<foreach collection="list" item="item" index="index" open="("close=")"separator="union all">
　　　　SELECT #{item.name} as a, #{item.age} as b FROM DUAL
　　</foreach>
</insert>

  <insert id ="insertCodeBatch" parameterType="java.util.List" >
            <selectKey resultType ="java.lang.Integer" keyProperty= "id"
                 order= "AFTER">
                SELECT LAST_INSERT_ID()
            </selectKey >
           insert into redeem_code
           (bach_id, code, type, facevalue,create_user,create_time)
           values
            <foreach collection ="list" item="reddemCode" index= "index" separator =",">
                (
                #{reddemCode.batchId}, #{reddemCode.code},
                #{reddemCode.type},
                #{reddemCode.facevalue},
                #{reddemCode.createUser}, #{reddemCode.createTime}
                )
            </foreach >
     </insert >