Question

下面是我的代码，它抓取数据并将数据转换为CSV文件（这是有效的）。我试图只关注当前日期返回的数据。

有人可以告诉我这是怎么做的，DTDT是约会对象。我的代码：

from elasticsearch import Elasticsearch
import csv

es = Elasticsearch(["9200"])

# Replace the following Query with your own Elastic Search Query
res = es.search(index="search", body=
                {
                    "_source": ["DTDT", "TRDT", "SPLE", "RPLE"],
                    "query": {
                        "bool": {
                            "should": [
                                {"wildcard": {"CN": "TEST*"}}

                            ]
                        }
                    }
}, size=10)



header_names = { 'DTDT': 'DATE', 'TRDT': 'TIME', ...}

with open('mycsvfile.csv', 'w') as f:  # Just use 'w' mode in 3.x
    header_present  = False
    for doc in res['hits']['hits']:
        my_dict = doc['_source'] 
        if not header_present:
            w = csv.DictWriter(f, my_dict.keys())
            w.writerow(header_names)  # will write DATE, TIME, ... in correct place
            header_present = True


        w.writerow(my_dict)

例如，我想只从午夜到下午2点返回数据（使用当前日期）。

Answer 1

您可以使用范围过滤器执行此操作：

{
  "_source": [
    "DTDT",
    "TRDT",
    "SPLE",
    "RPLE"
  ],
  "query": {
    "bool": {
      "should": [
        {
          "wildcard": {
            "CN": "TEST*"
          }
        }
      ],
      "must": [
        {
          "range": {
            "DTDT": {
              "gte": "now/d",
              "lte": "now+1d/d"
            }
          }
        }
      ]
    }
  }
}

*编辑到当前日历日的范围与舍入，而不是过去24小时。

如何获取当前日期的数据 - Python

1 个答案: