mybatis-plus

QueryWrapper<Object> queryWrapper = new QueryWrapper<>();

構造條件(查詢某天)

queryWrapper.apply("date_format(completion_time,'%y%m%dd')=" + "date_format('" + transaction.getCompletionTime() + "','%y%m%dd')");

查詢某月的資料

    if (StringUtils.isNotEmpty(withdrawRecord.getCreateAt())) {
            queryWrapper.apply(
 
" date_format(create_at,'%y%mm%') = date_format('" + withdrawRecord.getCreateAt() + "-01','%y%mm%')");
        }

獲取相隔兩日之間的資料

   if (StringUtils.isNotEmpty(orders.getBeginTime()) && orders.getBeginTime() != "") {
            wrapper.apply("date_format(create_time,'%y%m%d') >= date_format('" + orders.getBeginTime() + "','%y%m%d')");
        }
        
 
if (StringUtils.isNotEmpty(orders.getEndTime()) && orders.getEndTime() != "") {
            wrapper.apply("date_format(create_time,'%y%m%d') <= date_format('" + orders.getEndTime() + "','%y%m%d')");
        }

mybatis一樣的

<if test="beginTime != null and beginTime != ''"><!-- 開始時間檢索 -->
                and date_format(create_time,
 
'%y%m%d') &gt;= date_format(#{beginTime},'%y%m%d')
            </if>
            <if test="endTime != null and endTime != ''"><!-- 結束時間檢索 -->
                and date_format(create_time,'%y%m%d') &lt;= date_format(#{endTime},'%y%m%d')
            </if>

其中beginTime為開始時間,endTime為結束時間, 傳值類一定要有。