Elasticsearch聚合统计一.范围查询，分组统计

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Elasticsearch聚合查询语法

一.范围查询，分组统计
- 将语句转为java客户端查询语句(RestHighLevelClient)

一.范围查询，分组统计

DDL语句

将语句转为java客户端查询语句(RestHighLevelClient)

复制代码

SearchRequest searchRequest = new SearchRequest(indices);
        SearchSourceBuilder sourceBuilder = new SearchSourceBuilder();
        sourceBuilder.size(0);
        BoolQueryBuilder boolQueryBuilder = QueryBuilders.boolQuery();
        //时间范围过滤，range->区间聚合
        boolQueryBuilder.filter(QueryBuilders.rangeQuery("date").gt(DateUtil.strToDate(fromDate)).lte(DateUtil.strToDate(toDate)));
        sourceBuilder.query(boolQueryBuilder);
		//aggregations聚合分组（桶）
		//对每个分组（桶）内文档进行聚合，使用哪个字段，使用何种度量方式进行运算，这些信息要嵌套在桶内，度量的运算会基于桶内的文档进行
        sourceBuilder.aggregation(
                AggregationBuilders.terms("group_by_lineName").field("lineName").size(100)
                        .subAggregation(AggregationBuilders.avg("avg_eta").field("eta"))
                        .subAggregation(AggregationBuilders.avg("avg_uoc").field("uoc"))
                        .subAggregation(AggregationBuilders.avg("avg_isc").field("isc"))
                        .subAggregation(AggregationBuilders.avg("avg_ff").field("ff"))
                        .subAggregation(AggregationBuilders.avg("avg_rser").field("rser"))
                        .subAggregation(AggregationBuilders.avg("avg_rshuntDfDr").field("rshuntDfDr"))
        );

//指定搜索类型
        searchRequest.types(indices).source(sourceBuilder);
        SearchResponse response = restHighLevelClient.search(searchRequest, RequestOptions.DEFAULT);

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SearchRequest searchRequest = new SearchRequest(indices);
        SearchSourceBuilder sourceBuilder = new SearchSourceBuilder();
        sourceBuilder.size(0);
        BoolQueryBuilder boolQueryBuilder = QueryBuilders.boolQuery();
        //时间范围过滤，range->区间聚合
        boolQueryBuilder.filter(QueryBuilders.rangeQuery("date").gt(DateUtil.strToDate(fromDate)).lte(DateUtil.strToDate(toDate)));
        sourceBuilder.query(boolQueryBuilder);
		//aggregations聚合分组（桶）
		//对每个分组（桶）内文档进行聚合，使用哪个字段，使用何种度量方式进行运算，这些信息要嵌套在桶内，度量的运算会基于桶内的文档进行
        sourceBuilder.aggregation(
                AggregationBuilders.terms("group_by_lineName").field("lineName").size(100)
                        .subAggregation(AggregationBuilders.avg("avg_eta").field("eta"))
                        .subAggregation(AggregationBuilders.avg("avg_uoc").field("uoc"))
                        .subAggregation(AggregationBuilders.avg("avg_isc").field("isc"))
                        .subAggregation(AggregationBuilders.avg("avg_ff").field("ff"))
                        .subAggregation(AggregationBuilders.avg("avg_rser").field("rser"))
                        .subAggregation(AggregationBuilders.avg("avg_rshuntDfDr").field("rshuntDfDr"))
        );

        //指定搜索类型
        searchRequest.types(indices).source(sourceBuilder);
        SearchResponse response = restHighLevelClient.search(searchRequest, RequestOptions.DEFAULT);