ibatis数组参数的设置
<delete id="delete" parameter>

<![CDATA[ delete from user where (id in
]]>
<iterate property="idList" open="(" close=")" conjunction=",">
#idList[]#
</iterate>
<![CDATA[
)
]]>

或者

<delete id="delete" parameter>

<![CDATA[ delete from user where (id in

]]>

<iterate property="idList" open="(" close=")" conjunction=",">

#idList[].id#

</iterate>

<![CDATA[

)

]]>