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        <property name="password" value=""/>

    </bean>

    <rdb:strategy id="orderTableStrategy" sharding-columns="order_id" algorithm-expression="t_order_${order_id % 4}"/>

    <rdb:strategy id="orderItemTableStrategy" sharding-columns="order_id" algorithm-expression="t_order_item_${order_id % 4}"/>

    <rdb:strategy id="orderTableStrategy" sharding-columns="order_id" algorithm-expression="t_order_${order_id.longValue() % 4}"/>

    <rdb:strategy id="orderItemTableStrategy" sharding-columns="order_id" algorithm-expression="t_order_item_${order_id.longValue() % 4}"/>

    <rdb:data-source id="shardingDataSource">

        <rdb:sharding-rule data-sources="dbtbl_0,dbtbl_1">

            <rdb:table-rules>

                <rdb:table-rule logic-table="t_order" actual-tables="t_order_${0..3}" table-strategy="orderTableStrategy"/>

                <rdb:table-rule logic-table="t_order_item" actual-tables="t_order_item_${0..3}" table-strategy="orderItemTableStrategy"/>

            </rdb:table-rules>

            <rdb:default-database-strategy sharding-columns="user_id" algorithm-expression="dbtbl_${user_id % 2 + 1}"/>

            <rdb:default-database-strategy sharding-columns="user_id" algorithm-expression="dbtbl_${user_id.longValue() % 2 + 1}"/>

        </rdb:sharding-rule>

    </rdb:data-source>

</beans>