mybatis多參數使用方法且其中有的參數是多個值使用in查詢

本文轉載自查看原文 2020-06-23 15:08 3716 Mybatis

1.當只有一個參數時且參數類型是List

List<AnalysisInfo> listInfo(@Param("orderIds") List<Integer> orderIds);
我這里對參數重命名為"orderIds",所以下面foreach中collection="orderIds"，如果未重命名則foreach中collection="list"

 1  <select id="listInfo" resultType="com.ieou.retail.module.H5.dto.AnalysisInfo">
 2 
 3         select materials_name as materialsName,sum(num) as totalNum,
 4         sum(price) as totalSale
 5         from sales_order_detail
 6         where shipment_result = 'SUCCESS' and refunds_time is null
 7         and sales_order_id in
 8         <foreach collection="orderIds" index="index" item="item" open="(" separator="," close=")">
 9             #{item}
10         </foreach>
11         group by materials_id order by totalNum desc limit 5
12     </select>

2. 當只有一個參數時且參數類型是Array

List<AnalysisInfo> listInfo(Long[] orderIds);

如果參數類型是Array則collection屬性為array

 1 <select id="listInfo" resultType="com.ieou.retail.module.H5.dto.AnalysisInfo">
 2 
 3         select materials_name as materialsName,sum(num) as totalNum,
 4         sum(price) as totalSale
 5         from sales_order_detail
 6         where shipment_result = 'SUCCESS' and refunds_time is null
 7         and sales_order_id in
 8         <foreach collection="array" index="index" item="item" open="(" separator="," close=")">
 9             #{item}
10         </foreach>
11         group by materials_id order by totalNum desc limit 5
12     </select>

3.注意當查詢的參數有多個時，例如

List<AnalysisInfo> listInfo(List<Integer> orderIds, Integer num);
這種情況下傳參要使用Map方式，這樣在collection屬性可以指定名稱

Map<String, Object> params = new HashMap<>();

params.put("orderIds",orderIds);
params.put("num",num);

List<AnalysisInfo> listInfo(params);


XML如下：

<select id="listInfo" resultType="com.ieou.retail.module.H5.dto.AnalysisInfo">


    select materials_name as materialsName,sum(num) as totalNum,
    sum(price) as totalSale
    from sales_order_detail
    where shipment_result = 'SUCCESS' and refunds_time is null and num = #{num}
    and sales_order_id in
    <foreach collection="orderIds" index="index" item="item" open="(" separator="," close=")">
        #{item}
    </foreach>
    group by materials_id order by totalNum desc limit 5
</select>

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