Question

我想使用iBATIS使用动态查询或语句来获取数据。

例如

select * from USERS where ID=1 or ID=12 or ID= 3 or ID=27.....

我希望将一组ID作为列表对象传递。

Answer 1

你可以使用IN语句

<select id="selectKeys" parameterType="list"
        resultMap="selectKeysResultMap">
        SELECT COL1,COL2
        FROM
        TABLE1
        WHERE COL1 IN
        <foreach item="item" index="index" collection="list" open="("
            separator="," close=")">
            #{item}
        </foreach>
    </select>

Answer 2

在您的DataConnector中添加此内容;

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

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

inputMap.put("idList", idList);

mapper.getMcqAnswers(inputMap);

在您的DBMapper.xml中添加此内容;

<select id="getMcqAnswers" resultType="your result type">

select id,answers from mcqs where id in

<foreach item="item" index="index" collection="idList" open="(" separator="," close=")">

${item}

</foreach>

</select>

如何在iBATIS中使用“或”语句编写查询？

2 个答案: