mybatis動態拼接引數 
//獲取當前時間和修改時間的差值大於指定的分鐘資料
<operation name="queryBusinessByCondition" multiplicity="many">
        <extraparams>
            <param name="expireMinuteOfModify" javatype="java.lang.Integer"/>
            <param name="scene" javatype="java.lang.String"/>
        </extraparams>
        <sql>
            <![CDATA[
            SELECT id
            FROM business_order
            ]]>
        </sql>
        <sqlmap>
            <![CDATA[
            SELECT id
            FROM business_order
            WHERE
            effective = 'Y'
            <isNotEmpty prepend="AND" property="scene">
                    scene=#scene#
            </isNotEmpty>
            <isNotEmpty prepend="AND" property="expireMinuteOfModify">
                     TIMESTAMPDIFF(MINUTE, gmt_modified, now()) > #expireMinuteOfModify#
            </isNotEmpty>
            LIMIT 10
            ]]>
        </sqlmap>
    </operation>