feat: async search 一并返回提取的结果
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@@ -1,13 +1,15 @@
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import asyncio
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from typing import List, Optional
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from langchain_core.output_parsers import StrOutputParser
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from langchain_core.prompts import ChatPromptTemplate
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from llama_index.core import Document, VectorStoreIndex
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from llama_index.core.vector_stores import MetadataFilters, MetadataFilter, FilterOperator
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from llama_index.vector_stores.milvus import MilvusVectorStore
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from pydantic import BaseModel, Field
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from app.config.env import env
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from app.utils.llm_utils import create_embeddings
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from app.utils.llm_utils import create_embeddings, create_llm
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from app.utils.nltk_utils import load_nltk
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@@ -47,7 +49,7 @@ class MilvusService:
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# 检查Milvus连接是否正常
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async def check_milvus_connection(self):
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await self.async_search("hello")
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await self.async_search(KnowledgeQueryParam(question="hello", kb_code=""))
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print("✅ Milvus connection successful:", f"Milvus://{env.milvus_username}:{env.milvus_password}@{env.milvus_uri}/{env.llama_index_database}/{env.llama_index_collection}")
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async def async_create_index_from_documents(self, documents: List[Document]) -> VectorStoreIndex:
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@@ -86,11 +88,36 @@ class MilvusService:
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result_nodes = await retriever.aretrieve(param.question)
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# 异步执行查询
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# response = await query_engine.aquery(query)
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chain = ChatPromptTemplate.from_template("""
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你将收到一个用户问题和一组来自LlamaIndex的检索结果。你的任务是:
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1. 分析检索结果内容
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2. 提取与用户问题直接相关的信息片段
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3. 基于这些相关信息生成准确、简洁且有帮助的回答
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用户问题如下<question/>标签中的内容所示:
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<question>
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{question}
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</question>
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检索结果如下<context/>标签中的内容所示:
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<context>
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{context}
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</context>
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处理要求:
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- 仅关注检索结果中与用户问题直接相关的内容
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- 忽略任何无关或关联性较弱的信息
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- 如果检索结果中没有相关信息,请明确回答:"在提供的资料中未找到相关信息"
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- 不要添加检索结果之外的额外知识
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- 回答时优先使用检索结果中的原文表述
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""") | create_llm() | StrOutputParser()
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chain_input = {"context": "\n".join([node.node.text for node in result_nodes]), "question": param.question}
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print("chain_input", chain_input)
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relative_content = await chain.ainvoke(chain_input)
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return {
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# "answer": str(response),
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"answer": relative_content,
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"sources": [
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{
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"text": node.node.text,
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