Java ElasticSearch按字段将文档聚合到数组中

我试图将以下逻辑作为java中的查询写入elasticsearch：

ES包含以下文件：

{"request" : 1, "store":"ebay", "status" : "retrieved" , "lastdate": "2012/12/20 17:00", "retrieved_by" : "John"}
{"request" : 1, "store":"ebay", "status" : "stored" , "lastdate": "2012/12/20 18:00", "stored_by" : "Alex"}
{"request" : 1, "store":"ebay", "status" : "bought" , "lastdate": "2012/12/20 19:00", "bought_by" : "Arik"}
{"request" : 2, "store":"aliexpress", "status" : "retrieved" , "lastdate": "2012/12/20 17:00"}
{"request" : 2, "store":"aliexpress","status" : "stored" , "lastdate": "2012/12/20 18:00"}
{"request" : 2, "store":"aliexpress","status" : "bought" , "lastdate": "2012/12/20 19:00"}

我正在尝试编写一个查询，该查询将获取存储名称作为输入，并返回该存储的请求，这些请求通过请求id聚合到一个数组中

换句话说，我正在努力：

1.按特定字段（“存储”）上的术语进行过滤

2.根据特定字段（“请求”）将结果聚合到一个数组中

例如，输入“ebay”：

}

结果中的密钥将是请求（我将购买任何密钥），这并不重要。重要的是，我将所有记录按请求字段聚合到一个数组中，并按lastdate在数组中对它们进行排序

---

我的最终目标是使用JavaQueryBuilder创建这个查询。因此，我首先尝试使用弹性本机查询语言，以了解QueryBuilder要使用的内容。

设置基本映射：

PUT stores
{
  "mappings": {
    "properties": {
      "lastdate": {
        "type": "date",
        "format": "yyyy/MM/dd HH:mm"
      }
    }
  }
}

同步一些文档：

POST _bulk
{"index":{"_index":"stores","_type":"_doc"}}
{"request":1,"store":"ebay","status":"retrieved","lastdate":"2012/12/20 17:00","retrieved_by":"John"}
{"index":{"_index":"stores","_type":"_doc"}}
{"request":1,"store":"ebay","status":"stored","lastdate":"2012/12/20 18:00","stored_by":"Alex"}
{"index":{"_index":"stores","_type":"_doc"}}
{"request":1,"store":"ebay","status":"bought","lastdate":"2012/12/20 19:00","bought_by":"Arik"}
{"index":{"_index":"stores","_type":"_doc"}}
{"request":2,"store":"aliexpress","status":"retrieved","lastdate":"2012/12/20 17:00"}
{"index":{"_index":"stores","_type":"_doc"}}
{"request":2,"store":"aliexpress","status":"stored","lastdate":"2012/12/20 18:00"}
{"index":{"_index":"stores","_type":"_doc"}}
{"request":2,"store":"aliexpress","status":"bought","lastdate":"2012/12/20 19:00"}

在查询中进行筛选，然后按

请求

字段进行聚合，并使用排序的

顶部点击数

：

GET stores/_search
{
  "size": 0, 
  "query": {
    "term": {
      "store": {
        "value": "ebay"
      }
    }
  },
  "aggs": {
    "by_req": {
      "terms": {
        "field": "request"
      },
      "aggs": {
        "hits": {
          "top_hits": {
            "sort": [
              {
                "lastdate": {
                  "order": "desc"
                }
              }
            ]
          }
        }
      }
    }
  }
}

---

将其翻译成JavaDSL应该不会太难。

@joe在ES DSL中给出了正确的答案（再次感谢！）

我的目标是在java中使用查询。如果有人还需要JAVA DSL代码，我将在这里添加它：

QueryBuilder storeQuery = QueryBuilders.boolQuery().filter(QueryBuilders.termsQuery("store", "ebay"))
AggregationBuilder subAgg= AggregationBuilders.topHits("hits").sort("lastdate, SortOrder.ASC);
 AggregationBuilder mainAgg= AggregationBuilders.terms("by_req").field("request").subAggregation(subAgg);

---

您正在为此寻找JAVA API吗？我的最终目标是将此查询从本机elasic查询转换为JAVA Querybuilder查询。非常感谢！没问题！祝你好运

QueryBuilder storeQuery = QueryBuilders.boolQuery().filter(QueryBuilders.termsQuery("store", "ebay"))
AggregationBuilder subAgg= AggregationBuilders.topHits("hits").sort("lastdate, SortOrder.ASC);
 AggregationBuilder mainAgg= AggregationBuilders.terms("by_req").field("request").subAggregation(subAgg);