Mongodb高级查询Aggregation聚合组件分页

末蓝、 2022-07-14 20:38 622阅读 0赞

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());