mybatis入参为Map

1.service层

//对入参数进行封装
            Map<String,Object> map=new HashMap<>();
            String user_id="aaa";
            map.put("user_id",user_id);
            int size=list.size();
            String[] cartIs=new String[size];
            for (int i=0;i<size;i++){
                cartIs[i]= String.valueOf(list.get(i).getId());
            }
            map.put("cartIds",cartIs);
            
            userMapperReader.checkIsUpdate(map);
           

2.dao层

List<User> checkIsUpdate(Map<String,Object> map);

3.mapper

<select id="checkIsUpdate" parameterType="java.util.Map" resultType="user">
        SELECT *
        FROM user
        WHERE member_id = #{member_id}
        AND id in
        <foreach collection="cartIds" item="cartIds" separator="," open="(" close=")">
            #{cartIds}
        </foreach>
    </select>