LangChain

Zilliz Cloud

Zilliz Cloud (opens in a new tab)是一个完全托管在云端的向量数据库和LF AI Milvus®服务。

本教程展示了如何使用与Zilliz Cloud向量数据库相关的功能。

要运行，您应该有一个正在运行的"Zilliz Cloud"实例。这里是安装指南 (opens in a new tab)。

!pip install pymilvus

我们想使用OpenAIEmbeddings，因此必须获取OpenAI API密钥。

import os
import getpass
 
os.environ['OPENAI_API_KEY'] = getpass.getpass('OpenAI API密钥：')

需要将以下内容替换为Zilliz Cloud连接信息：

ZILLIZ_CLOUD_URI = "" # 例如："https://in01-17f69c292d4a5sa.aws-us-west-2.vectordb.zillizcloud.com:19536"
ZILLIZ_CLOUD_USERNAME = ""  # 例如："username"
ZILLIZ_CLOUD_PASSWORD = ""  # 例如："*********"

from langchain.embeddings.openai import OpenAIEmbeddings
from langchain.text_splitter import CharacterTextSplitter
from langchain.vectorstores import Milvus
from langchain.document_loaders import TextLoader
 
loader = TextLoader('../../../state_of_the_union.txt')
documents = loader.load()
text_splitter = CharacterTextSplitter(chunk_size=1000, chunk_overlap=0)
docs = text_splitter.split_documents(documents)
 
embeddings = OpenAIEmbeddings()
 
vector_db = Milvus.from_documents(
    docs,
    embeddings,
    connection_args={
        "uri": ZILLIZ_CLOUD_URI,
        "username": ZILLIZ_CLOUD_USERNAME,
        "password": ZILLIZ_CLOUD_PASSWORD,
        "secure": True
    }
)
 
docs = vector_db.similarity_search(query)
 
docs[0]

Weaviate 入门（Getting Started）