Tagged: mybatis

April 21, 2019

mybatis 动态参数及其 foreach collection使用

Mybatis里传参数入Mapper一般基于基本类型，Integer、String、List、Hashtable，然后以此构架foreach迭代动态sql。

<select id="findUserListByIdList" parameterType="java.util.ArrayList" resultType="User">  
    select * from user user  
    <where>  
        user.id in 
        <foreach  collection="listName" item="guard" index="index" 
            separator="," open="(" separator="," close=")" > #{guard} </foreach>   
    </where>  
</select>

select * from user user

<where>

user.id in

<foreach collection="listName" item="guard" index="index"

separator="," open="(" separator="," close=")" > #{guard} </foreach>

</where>

</select>

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Tagged: mybatis

mybatis 动态参数及其 foreach collection使用

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