python Elasticsearch5.x使用

文档：http://elasticsearch-py.readthedocs.io/en/master/

Elasticsearch官方API文档：https://www.elastic.co/guide/en/elasticsearch/reference/current/search.html

两种方式现实Elasticsearch API操作

方式一：安装elasticsearch模块，通过它操作Elasticsearch，代码示例如下

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""" pip install elasticsearch """   from elasticsearch import Elasticsearch     class ElasticSearchClass(object):       def __init__(self, host, port, user, passwrod):         self.host = host         self.port = port         self.user = user         self.password = passwrod         self.connect()       def connect(self):         self.es = Elasticsearch(hosts=[{'host': self.host, 'port': self.port}],                                 http_auth=(self.user, self.password ))       def count(self, indexname):         """         :param indexname:         :return: 统计index总数         """         return self.es.count(index=indexname)       def delete(self, indexname, doc_type, id):         """         :param indexname:         :param doc_type:         :param id:         :return: 删除index中具体的一条         """         self.es.delete(index=indexname, doc_type=doc_type, id=id)       def get(self, indexname, id):         return self.es.get(index=indexname, id=id)       def search(self, indexname, size=10):         try:             return self.es.search(index=indexname, size=size, sort="@timestamp:desc")         except Exception as err:             print(err)

 

方式二：安装requests模块，通过GET、POST方式操作Elasticsearch

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class RequestsElasticSearchClass(object):       def __init__(self, host, port, user, passwrod):         self.url = 'http://' + host + ':' + str(port)         basicpwd = base64.b64encode((user + ':' + passwrod).encode('UTF-8'))         self.headers = {"User-Agent": "shhnwangjian",                         "Content-Type": "application/json",                         "Authorization": "Basic {}".format(basicpwd.decode('utf-8'))}       def search(self, indexname, size=10):         gettdata = {"sort": "@timestamp:desc",                     "size": size}         url = self.url + '/' + indexname + '/_search'         ret = requests.get(url, headers=self.headers, timeout=10, params=gettdata)         print(ret.text)

备注：python3.6.1版本