python操作ES的三种办法

python操作ES的三种办法

1 使用requests模块

import requests

data = {
    "name": "大娘子",
    "age": 18,
    "from": "sheng",
    "desc": "肤白貌美，娇憨可爱",
    "tags": ["白", "富", "美"]
}

res = request.put('http://127.0.0.1:9200/lqz/_doc/6', json=data)
print(res.text)

2 使用官方提供的包

# 推荐使用  elasticsearch  需要注意版本问题
from elasticsearch import Elasticsearch

client = Elasticsearch("http://localhost:9200")
print(client.info) # es信息

# 创建索引
result = client.indices.create(index='user')
print(result)
# 删除索引
result = client.indices.delete(index='user')
print(result)

# 更新数据  必须的用
'''
不用doc包裹会报错
ActionRequestValidationException[Validation Failed: 1: script or doc is missing
'''

data = {'doc': {'userid': '1', 'username': 'lqz', 'password': '123ee', 'test': 'test'}}
result = client.update(index='news', doc_type='_doc', body=data, id=1)
print(result)

# 删除数据             
result = client.del
print(result) 

# 查询           查询 原生咋查，这里就可以咋用                                     
# 查找所有文档                                             
query = {'query': {'match_all': {}}}                 
#  查找名字叫做lxx的所有文档                                    
query = {'query': {'term': {'name': 'lxx'}}}         
# 查找年龄大于11的所有文档                                      
query = {'query': {'range': {'price': {'gt': 100}}}} 
allDoc = client.search(index='books',  body=query)   
print(allDoc)                                        

3 ORM包

elasticsearch-dsl
from datetime import datetime
from elasticsearch_dsl import Document, Date, Nested, Boolean,analyzer, InnerDoc, Completion, Keyword, Text,Integer

from elasticsearch_dsl.connections import connections

connections.create_connection(hosts=["localhost"])
class Article(Document):
    title = Text(fields={'title': Keyword()})
    author = Text()

    class Index:
        name = 'myindex'  # 索引名
        
if __name__ == '__main__':
    Article.init()  # 创建映射
    # 保存数据
    article = Article()
    article.title = "test"
    article.author = "lxx"
    article.save()  # 保存数据

    # 查询数据
    s=Article.search()
    s = s.filter('match', title="test")
    results = s.execute()
    print(results)

    # 删除数据
    s = Article.search()
    s = s.filter('match', title="test").delete()
    # 修改数据
    s = Article().search()
    s = s.filter('match', title="test")
    results = s.execute()
    print(results[0])
    results[0].title="xxx"
    results[0].save()