MongoDB Template 分组按条件查询_mongotempate regex-优快云博客

本文链接：https://blog.youkuaiyun.com/qq_37781796/article/details/122937395

本文介绍了如何使用MongoDB的Aggregation操作对广告数据进行筛选、拆分、分组、排序和分页，实现对广告点击和展示效果的深入分析。通过正则表达式匹配广告名称，结合公司名和位置信息，生成了详细的报告并按点击量和停留时间排序。

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//没有条件的时候就给赋给结果
resultAll = criteriaCompany;
//有条件的时候就加and
resultAll = resultAll.and(“body.advertName”).regex(this.pattern(advertName));
//最后放到matchOperation 中，等分组查询的时候作为条件
matchOperation = Aggregation.match(resultAll);
//声明一下用到的字段
projectionOperation = Aggregation.project(“clickCount”, “stopTime”, “body”);
//对document类型的数据进行拆分
UnwindOperation unwindOperation = Aggregation.unwind(“body”);
//分组
groupOperation = Aggregation.group(“body.advertName”, “body.productCompanyName”, “body.advertPosition”) .sum(“stopTime”).as(“stopTime”).sum(“clickCount”).as(“clickCount”)
.first(“body.advertName”).as(“realName”)
.first(“body.productCompanyName”).as(“companyName”)
.first(“body.advertPositionId”).as(“eventId”);
//排序
SortOperation sortOperation = Aggregation.sort(Sort.by(new Sort.Order(Sort.Direction.DESC, “clickCount”),new Sort.Order(Sort.Direction.DESC, “stopTime”)));
//分页从第几条数据开始
SkipOperation skipOperation = Aggregation.skip(startRows);
//分页每页多少条数据
LimitOperation limitOperation = Aggregation.limit(pageSize);
//获取总的结果
aggregationResult = Aggregation.newAggregation(matchOperation, projectionOperation, unwindOperation, groupOperation, sortOperation, skipOperation, limitOperation);
//将总的结果转成list
List pointPoLists = mongoTemplate.aggregate(aggregationResult,“test_point”, TestPointPo.class).getMappedResults();