Mongodb高階查詢Aggregation聚合元件分頁
阿新 • • 發佈:2018-12-24
用Mongo的聚合元件Aggregation要用到兩個方法skip和limit。skip設定起點(分頁的時候不包含起點,從起點的下一行開始),limit設定條數。如:
Aggregation.skip(10),
Aggregation.limit(20)的意思是(10,20)第10條以後取20條資料。
Criteria criteria= new Criteria(); if(map.get("userlist")!=null&&!"".equals(map.get("userlist"))){ List<UserPrivacy> userList =(List<UserPrivacy>) map.get("userlist"); criteria.and(Field.USERPRIVACY).in(userList); } Order orders = new Order(Direction.DESC,Field.CREATE_TIME); Sort sort = new Sort(orders); TypedAggregation<OrderReport> aggregation = Aggregation.newAggregation(OrderReport.class, Aggregation.match( criteria // .and(Field.CLOSE_TYPE).in(TimetableOrderCloseType.NORMAL, TimetableOrderCloseType.QUIT_FIXED_CLASS, TimetableOrderCloseType.FROZEN) // .and(Field.START_TIME).gte(startTime).lte(endTime) ), Aggregation.group(Field.VIPSERVICE) .first(Field.VIPSERVICE).as(Field.VIPSERVICE) .first(Field.USERPRIVACY).as(Field.USERPRIVACY) .first(Field.SCHOOL_ZONE).as(Field.SCHOOL_ZONE) .first(Field.CHILD).as(Field.CHILD) .first(Field.CREATE_TIME).as(Field.CREATE_TIME) .sum(Field.NORMAL_CLASSNUMBER).as(Field.NORMAL_CLASSNUMBER) .sum(Field.NORMAL_WEEKDAY_CLASSNUMBER).as(Field.NORMAL_WEEKDAY_CLASSNUMBER) .sum(Field.NORMAL_WEEKEND_CLASSNUMBER).as(Field.NORMAL_WEEKEND_CLASSNUMBER) .sum(Field.NORMAL_PRICE).as(Field.NORMAL_PRICE) .sum(Field.NORMAL_WEEKDAY_PRICE).as(Field.NORMAL_WEEKDAY_PRICE) .sum(Field.NORMAL_WEEKEND_PRICE).as(Field.NORMAL_WEEKEND_PRICE), Aggregation.sort(sort), Aggregation.skip(page.getPage()>1?(page.getPage()-1)*page.getRows():0), Aggregation.limit(page.getRows()) ); List<OrderReport> consultReportSearch =CollectionUtil.safe(mongoTemplate.aggregate(aggregation, OrderReport.class).getMappedResults());