如果elasticsearch不存在，则将文档添加到elasticsearch

sudo systemctl start elasticsearch

pip install elasticsearch

from elasticsearch import Elasticsearch

# 连接到Elasticsearch实例
es = Elasticsearch("http://localhost:9200")

# 要添加的文档
document = {
    "title": "Example Document",
    "content": "This is an example document for Elasticsearch."
}

# 要在Elasticsearch中搜索的索引
index_name = "example-index"

# 检查文档是否存在于Elasticsearch中
search_result = es.search(index=index_name, body={"query": {"match": {"title": "Example Document"}}})
exists = search_result["hits"]["total"]["value"] > 0

if not exists:
    # 将文档添加到Elasticsearch中
    es.index(index=index_name, body=document)
    print("Document added to Elasticsearch")
else:
    print("Document already exists in Elasticsearch")