Mongodb高级查询Aggregation聚合组件分页

来源：互联网发布：济南中金数据编辑：程序博客网时间：2024/06/05 16:09

用Mongo的聚合组件Aggregation要用到两个方法skip和limit。skip设置起点（分页的时候不包含起点，从起点的下一行开始），limit设置条数。如:

Aggregation.skip(10),

Aggregation.limit(20)的意思是（10,20）第10条以后取20条数据。

    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());

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