如何从Python中检索公司Elasticsearch数据？

pip install elasticsearch

from elasticsearch import Elasticsearch

# 创建Elasticsearch客户端实例
es = Elasticsearch([{'host': 'localhost', 'port': 9200}])

# 确保连接成功
if not es.ping():
    raise ValueError("连接失败，请检查Elasticsearch是否在运行")

# 检索数据
index_name = "your_index_name"
doc_type = "_doc"  # 对于Elasticsearch 7.x及以上版本，使用"_doc"
doc_id = "your_document_id"

# 获取单个文档
response = es.get(index=index_name, doc_type=doc_type, id=doc_id)
print(response['_source'])

# 搜索文档
search_body = {
    "query": {
        "match_all": {}
    }
}
search_response = es.search(index=index_name, body=search_body)
for hit in search_response['hits']['hits']:
    print(hit['_source'])