mybatis传入map参数，map中包含list(输入参数)

1.xml中配置:

<!-- 根据条件查询满足条件的ID集合开始 -->
    <select id="getQuestionsIdsForExamPaper" resultType="java.lang.String"
        parameterType="hashmap">
        select
        questionId from questions
        <where>
            <include refid="query_questionIds_where"></include>
        </where>
    </select>

    <!-- 查询试题ID的条件 -->
    <sql id="query_questionIds_where">
        <if test="type!=null">
            and type=#{type}
        </if>
        <if test="level!=null">
            and level=#{level}
        </if>
        <!-- 知识点 -->
        <if test="konwledges!=null">
            and knowledgeType in
            <foreach collection="konwledges" item="knowledge" separator=","
                open="(" close=")">
                #{knowledge}
            </foreach>
        </if>
        <if test="num!=null">
            ORDER BY RAND() LIMIT #{num}
        </if>
    </sql>

2.Java测试:

    // 测试查询ID集合
    @Test
    public void test3() throws SQLException {
        Map<String, Object> condition = new HashMap<String, Object>();
        condition.put("type", "单选题");
        condition.put("level", 1);
        condition.put("num", 3);
        List<String> konwledges = new ArrayList<String>();
        konwledges.add("安全生产管理知识");
        konwledges.add("电力安全规程制度");
        condition.put("num", 3);
        condition.put("konwledges", konwledges);
        List<String> IDs = questionsCustomMapper.getQuestionsIdsForExamPaper(condition);
        System.out.println(IDs.size());
    }

结果:aaarticlea/png;base64,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" alt="" />

总结:

　　map中的list同普通的一样，只是在遍历的时候collection要写出map中的List的键值。如:

aaarticlea/png;base64,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" alt="" />

补充:也可以获取到遍历集合的顺序，比如:

    <select id="listFirstChargeReport" resultType="map"
        parameterType="map">
    SELECT user_name,gmt_created, '1' AS 当天
    <foreach collection="syncDates" item="syncDate" index="indexNum" open="," separator=",">
        IFNULL((SELECT CASE WHEN bet_amount + 0 > 0 THEN '1' END FROM member m WHERE m.user_name = c.user_name  AND sync_Date = '${syncDate}'),'-') AS 第${indexNum + 1}天
    </foreach>
    FROM first_charge c WHERE gmt_created LIKE '${gmtCreated}%'
    </select>

java传入的参数如下:

Map<String, Object> tmpCondition = new HashMap<>();
        tmpCondition.put("gmtCreated", DateFormatUtils.format(new Date(), "yyyy-MM-dd"));
        List<String> syncDates = getDates(DateFormatUtils.format(new Date(), "yyyy-MM-dd"), 15);
        tmpCondition.put("syncDates", syncDates);

private List<String> getDates(String dateStr, int i) {
        List<String> result = new ArrayList<>();

        try {
            Date parseDate = DateUtils.parseDate(dateStr, "yyyy-MM-dd");
            Calendar calendar = Calendar.getInstance();
            calendar.setTime(parseDate);

            while (i > 0) {
                calendar.add(Calendar.DAY_OF_MONTH, -1);
                i--;

                Date time = calendar.getTime();
                String formatedTime = DateFormatUtils.format(time, "yyyy-MM-dd");
                result.add(formatedTime);
            }
        } catch (ParseException e) {
            // ignore
        }

        return result;
    }

生成的SQL如下:

SELECT user_name,gmt_created, '' AS 当天 , IFNULL((SELECT CASE WHEN bet_amount + 0 > 0 THEN '' END FROM member m WHERE m.user_name = c.user_name AND sync_Date = '2019-09-05'),'-') AS 第1天 , IFNULL((SELECT CASE WHEN bet_amount + 0 > 0 THEN '' END FROM member m WHERE m.user_name = c.user_name AND sync_Date = '2019-09-04'),'-') AS 第2天 , IFNULL((SELECT CASE WHEN bet_amount + 0 > 0 THEN '' END FROM member m WHERE m.user_name = c.user_name AND sync_Date = '2019-09-03'),'-') AS 第3天 , IFNULL((SELECT CASE WHEN bet_amount + 0 > 0 THEN '' END FROM member m WHERE m.user_name = c.user_name AND sync_Date = '2019-09-02'),'-') AS 第4天 , IFNULL((SELECT CASE WHEN bet_amount + 0 > 0 THEN '' END FROM member m WHERE m.user_name = c.user_name AND sync_Date = '2019-09-01'),'-') AS 第5天 , IFNULL((SELECT CASE WHEN bet_amount + 0 > 0 THEN '' END FROM member m WHERE m.user_name = c.user_name AND sync_Date = '2019-08-31'),'-') AS 第6天 , IFNULL((SELECT CASE WHEN bet_amount + 0 > 0 THEN '' END FROM member m WHERE m.user_name = c.user_name AND sync_Date = '2019-08-30'),'-') AS 第7天 , IFNULL((SELECT CASE WHEN bet_amount + 0 > 0 THEN '' END FROM member m WHERE m.user_name = c.user_name AND sync_Date = '2019-08-29'),'-') AS 第8天 , IFNULL((SELECT CASE WHEN bet_amount + 0 > 0 THEN '' END FROM member m WHERE m.user_name = c.user_name AND sync_Date = '2019-08-28'),'-') AS 第9天 , IFNULL((SELECT CASE WHEN bet_amount + 0 > 0 THEN '' END FROM member m WHERE m.user_name = c.user_name AND sync_Date = '2019-08-27'),'-') AS 第10天 , IFNULL((SELECT CASE WHEN bet_amount + 0 > 0 THEN '' END FROM member m WHERE m.user_name = c.user_name AND sync_Date = '2019-08-26'),'-') AS 第11天 , IFNULL((SELECT CASE WHEN bet_amount + 0 > 0 THEN '' END FROM member m WHERE m.user_name = c.user_name AND sync_Date = '2019-08-25'),'-') AS 第12天 , IFNULL((SELECT CASE WHEN bet_amount + 0 > 0 THEN '' END FROM member m WHERE m.user_name = c.user_name AND sync_Date = '2019-08-24'),'-') AS 第13天 , IFNULL((SELECT CASE WHEN bet_amount + 0 > 0 THEN '' END FROM member m WHERE m.user_name = c.user_name AND sync_Date = '2019-08-23'),'-') AS 第14天 , IFNULL((SELECT CASE WHEN bet_amount + 0 > 0 THEN '' END FROM member m WHERE m.user_name = c.user_name AND sync_Date = '2019-08-22'),'-') AS 第15天 FROM first_charge c WHERE gmt_created LIKE '2019-09-06%' LIMIT ?