标签：不用 cep use 版本 code 创建 python www. 安装
Elasticsearch 是一个分布式可扩展的实时搜索和分析引擎,一个建立在全文搜索引擎 Apache Lucene(TM) 基础上的搜索引擎.当然 Elasticsearch 并不仅仅是 Lucene 那么简单，它不仅包括了全文搜索功能，还可以进行以下工作:
注意：Elasticsearch是用Java开发的，最新版本的Elasticsearch需要安装jdk1.8以上的环境
安装包下载完，解压，进入到bin目录，启动 elasticsearch.bat 即可
from elasticsearch import Elasticsearch # 创建ES对象 obj=Elasticsearch() # 创建索引index:索引的名字,body:数据,ignore:状态码 result=obj.indices.create(index="user",body={"userid":"1","username":"maple"},ignore=400) print(result) # {‘error‘: {‘root_cause‘: [{‘type‘: ‘parse_exception‘, ‘reason‘: ‘unknown key [userid] for create index‘}], ‘type‘: ‘parse_exception‘, ‘reason‘: ‘unknown key [userid] for create index‘}, ‘status‘: 400} # 删除索引 result = obj.indices.delete(index=‘user‘, ignore=[400, 404]) result = obj.delete(index=‘news‘, doc_type=‘politics‘, id=1) # 插入数据 data={"userid":"1","username":"maple","password":"123"} # index:索引名字,id:文档ID,doc_type:文档类型,body:数据 result=obj.create(index="news",doc_type="politics", id=1, body=data) # {‘_index‘: ‘news‘, ‘_type‘: ‘politics‘, ‘_id‘: ‘1‘, ‘_version‘: 1, ‘result‘: ‘created‘, ‘_shards‘: {‘total‘: 2, ‘successful‘: 1, ‘failed‘: 0}, ‘_seq_no‘: 0, ‘_primary_term‘: 1} print(result) # 更新数据 ‘‘‘ 不用doc包裹会报错 ActionRequestValidationException[Validation Failed: 1: script or doc is missing ‘‘‘ data ={"doc":{"userid": "1", "username": "maple","password":"123456","test":"测试"}} result = obj.update(index="news", doc_type="politics", body=data, id=1) # {‘_index‘: ‘news‘, ‘_type‘: ‘politics‘, ‘_id‘: ‘1‘, ‘_version‘: 7, ‘result‘: ‘updated‘, ‘_shards‘: {‘total‘: 2, ‘successful‘: 1, ‘failed‘: 0}, ‘_seq_no‘: 6, ‘_primary_term‘: 1} print(result) # 查询所有文档 query={"query":{"match_all":{}}} # 查找名字叫maple的所有文档 # query = {‘query‘: {‘term‘: {‘username‘: ‘maple‘}}} # 查找年龄大于11的所有文档 # query = {‘query‘: {‘range‘: {‘age‘: {‘gt‘: 11}}}} all_doc=obj.search(index="news", body=query) # {‘userid‘: ‘1‘, ‘username‘: ‘maple‘, ‘password‘: ‘123456‘, ‘test‘: ‘测试‘} print(all_doc["hits"]["hits"][0]["_source"])
标签：不用 cep use 版本 code 创建 python www. 安装
原文地址：https://www.cnblogs.com/angelyan/p/10798594.html
