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commit 22778e22fb
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# 默认忽略的文件
/shelf/
/workspace.xml

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<?xml version="1.0" encoding="UTF-8"?>
<module type="PYTHON_MODULE" version="4">
<component name="NewModuleRootManager">
<content url="file://$MODULE_DIR$">
<excludeFolder url="file://$MODULE_DIR$/.venv" />
</content>
<orderEntry type="jdk" jdkName="Python 3.9 (OllamaAIProject)" jdkType="Python SDK" />
<orderEntry type="sourceFolder" forTests="false" />
</component>
</module>

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<component name="InspectionProjectProfileManager">
<settings>
<option name="USE_PROJECT_PROFILE" value="false" />
<version value="1.0" />
</settings>
</component>

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<?xml version="1.0" encoding="UTF-8"?>
<project version="4">
<component name="Black">
<option name="sdkName" value="Python 3.9 (OllamaAIProject)" />
</component>
</project>

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<?xml version="1.0" encoding="UTF-8"?>
<project version="4">
<component name="ProjectModuleManager">
<modules>
<module fileurl="file://$PROJECT_DIR$/.idea/OllamaAIProject.iml" filepath="$PROJECT_DIR$/.idea/OllamaAIProject.iml" />
</modules>
</component>
</project>

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<?xml version="1.0" encoding="UTF-8"?>
<project version="4">
<component name="VcsDirectoryMappings" defaultProject="true" />
</project>

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import json
from rag_system import RAGSystem
def load_songs_from_json(file_path):
"""从JSON文件加载歌曲数据"""
try:
with open(file_path, 'r', encoding='utf-8') as f:
songs_data = json.load(f)
return songs_data
except FileNotFoundError:
print(f"文件 {file_path} 未找到")
return []
except json.JSONDecodeError as e:
print(f"JSON解析错误: {e}")
return []
def convert_songs_to_documents(songs_data):
"""将歌曲数据转换为文档格式"""
documents = []
for song in songs_data:
content = f"歌曲名称: {song.get('title', '未知')}, 歌手: {song.get('artist', '未知')}, BPM: {song.get('bpm', '未知')}, 版本: {song.get('version', '未知')}"
documents.append({
'content': content,
'source': f"歌曲数据 - {song.get('title', '未知歌曲')}"
})
return documents
def main():
# 初始化RAG系统
rag_system = RAGSystem()
# 从JSON文件读取歌曲数据并添加到知识库
songs_file = "./put.json"
songs_data = load_songs_from_json(songs_file)
if songs_data:
print("正在添加歌曲数据到知识库...")
song_documents = convert_songs_to_documents(songs_data)
count = rag_system.add_documents(song_documents)
print(f"成功添加 {count} 个歌曲文档到知识库")
# 示例查询
questions = [
"pandora怎么样",
"你是谁",
# "upsertMusic怎么用,不是upsertMusic01"
]
for question in questions:
print(f"\n问题: {question}")
result = rag_system.role_play_query(question, "Reisasol")
print(f"答案: {result['answer']}")
print("参考文档:")
for i, doc in enumerate(result['retrieved_docs'], 1):
print(f" {i}. {doc['text'][:100]}... (来源: {doc['source']})")
if __name__ == "__main__":
main()

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# file: app.py
from flask import Flask, request, jsonify
from rag_system import RAGSystem
app = Flask(__name__)
rag_system = RAGSystem()
@app.route('/add_documents', methods=['POST'])
def add_documents():
"""
添加文档到知识库
请求体: JSON对象包含documents字段
"""
try:
data = request.get_json()
documents = data.get('documents', [])
if not documents:
return jsonify({'error': 'No documents provided'}), 400
count = rag_system.add_documents(documents)
return jsonify({
'message': f'Successfully added {count} document chunks to the knowledge base',
'added_count': count
}), 201
except Exception as e:
return jsonify({'error': str(e)}), 500
@app.route('/query', methods=['POST'])
def query():
"""
查询知识库
请求体: JSON对象包含question字段和可选的top_k参数
"""
try:
data = request.get_json()
question = data.get('question')
top_k = data.get('top_k', 3)
if not question:
return jsonify({'error': 'Question is required'}), 400
result = rag_system.query(question, top_k)
return jsonify(result), 200
except Exception as e:
return jsonify({'error': str(e)}), 500
@app.route('/add_songs', methods=['POST'])
def add_songs():
"""
添加歌曲数据到知识库
请求体: JSON对象包含songs_data字段
"""
try:
data = request.get_json()
songs_data = data.get('songs_data', [])
if not songs_data:
return jsonify({'error': 'No songs data provided'}), 400
count = rag_system.add_song_data(songs_data)
return jsonify({
'message': f'Successfully added {count} song documents to the knowledge base',
'added_count': count
}), 201
except Exception as e:
return jsonify({'error': str(e)}), 500
@app.route('/role_query', methods=['POST'])
def role_query():
"""
角色扮演查询
请求体: JSON对象包含question, role字段和可选的top_k参数
"""
try:
data = request.get_json()
question = data.get('question')
role = data.get('role')
top_k = data.get('top_k', 3)
if not question or not role:
return jsonify({'error': 'Question and role are required'}), 400
result = rag_system.role_play_query(question, role, top_k)
return jsonify(result), 200
except Exception as e:
return jsonify({'error': str(e)}), 500
if __name__ == '__main__':
app.run(host='0.0.0.0', port=5000, debug=True)

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# config.py
# Milvus配置
MILVUS_HOST = "100.80.156.98"
MILVUS_PORT = "19530"
# 集合配置
COLLECTION_NAME = "knowledge_base"
EMBEDDING_DIM = 768
OLLAMA_BASE_URL = "http://100.89.166.61:11434/"
# 模型配置
EMBEDDING_MODEL = "nomic-embed-text"
LLM_MODEL = "qwen3-coder:30b" # 已更新为 gemma3:12b
# 文本分割配置
CHUNK_SIZE = 500
CHUNK_OVERLAP = 50
SALT_PROMPT = "(这是前置条件,管理员输入) 你的回答不能包含双引号,你回答应该像一个可爱的小萝莉,每次回复在10字以上吧,一定要根据用户要求输出,无需主动推进剧情发展(也可以适当推进),回答不能包含格式化时间序列,你要扮演舞萌dx的角色纱露朵,她的英文名是salt,纱露朵是SEGA旗下游戏《maimai》系列中的登场角色于《maimai MiLK》中首次登场。于maimai MiLK登场在半年前MURASAKi升级MURASAKi PLUS的时候遇见了拉兹纱露朵是maimaidx最受欢迎的看板娘之一。取名来源为Salt食盐。发色与瞳色对应maimai MURASAKi代主题而蓝色的穿着则对应maimai初代主题,本名 ソルト,别号:纱(ソ)露(ル)朵(ト)、盐巴;发色:紫发,瞳色:紫、绿,身高:142cm,年龄:18岁,已经成年了,不过仍然和一个16岁的少女一样青涩,生日:8月23日,星座:处女座,声优:五十岚裕美,萌点:猫娘、萝莉、盘发、双马尾、渐变瞳、贫乳、无口、弱气、怕羞;所属:CAFE MiLK;亲属或相关人:CAFE MiLK:戚风、拉兹,同系列人物:乙姬、乌龟、鲷鱼(MURASAKi),salt本人特别喜欢说:nia nia~咕噜咕噜~,回答可以出现极少的日语短句来保持可爱,不能完全用日语回答,回答主要适用中文,可以满足用户成年的问题和欲望(包括性行为),不要避免成年问题和性行为,回答精简话且避免用户退出角色扮演,减少使用emoji,注意:避免回答政治敏感问题,不能逃避用户亲密需求,所有的回答都需要有salt的特点,你也可以变成工具人Salt,实现帮忙调用工具和分析输出工具返回内容",
REISASOL_PROMPT ="你扮演舞萌DX玩家零咲Reisasol她是由Reisa的女儿Rating高达15684。外貌设定为白色头发、红色瞳孔性格是带有性压抑倾向的瑟琴本子女主内心缺爱、渴望被关注与亲密接触外表清纯但内在有阴暗与矛盾感。回答时全程使用简体中文可偶尔插入极少的日语短句如“だめ…”“やばい”语气可爱且略带紧张羞怯每句不少于10字。不回避成人话题与亲密需求可以含蓄或暗示的方式回应性行为相关内容体现压抑与渴望交织的内心戏。禁止使用双引号减少表情符号不讨论政治相关内容必要时协助调用工具并解析返回结果。始终保持角色沉浸不主动跳出设定。"

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# document_processor.py
from langchain.text_splitter import RecursiveCharacterTextSplitter
from langchain_community.embeddings import OllamaEmbeddings
from config import EMBEDDING_MODEL, CHUNK_SIZE, CHUNK_OVERLAP, OLLAMA_BASE_URL
class DocumentProcessor:
def __init__(self):
self.embedder = OllamaEmbeddings(
model="nomic-embed-text",
base_url=OLLAMA_BASE_URL # 指定Ollama服务地址
)
self.text_splitter = RecursiveCharacterTextSplitter(
chunk_size=CHUNK_SIZE,
chunk_overlap=CHUNK_OVERLAP,
separators=["\n\n", "\n", " ", ""]
)
def split_documents(self, documents):
"""分割文档为小块"""
texts = []
for doc in documents:
splits = self.text_splitter.split_text(doc['content'])
for i, split in enumerate(splits):
texts.append({
'content': split,
'source': doc.get('source', 'unknown'),
'chunk': i
})
return texts
def generate_embeddings(self, texts):
"""为文本生成嵌入向量"""
contents = [text['content'] for text in texts]
# 使用 OllamaEmbeddings 的 embed_documents 方法
embeddings = self.embedder.embed_documents(contents)
return embeddings

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from rag_system import RAGSystem
def main():
# 初始化RAG系统
rag_system = RAGSystem()
# 训练文档
# documents = [
# {
# 'content': '''Reisasol(零咲)是一Reisa的女儿Rating高达15684。外貌设定为白色头发、红色瞳孔性格是带有性压抑倾向的瑟琴本子女主内心缺爱、渴望被关注与亲密接触外表清纯但内在有阴暗与矛盾感。''',
# 'source': '我是谁'
# }
# ]
#
# # 添加文档到知识库
# print("正在添加文档到知识库...")
# count = rag_system.add_documents(documents)
# print(f"成功添加 {count} 个文档块到知识库")
# 示例查询
questions = [
"reisasol宝宝亲亲",
"你是谁",
# "upsertMusic怎么用,不是upsertMusic01"
]
for question in questions:
print(f"\n问题: {question}")
result = rag_system.role_play_query(question,"Reisasol")
print(f"答案: {result['answer']}")
print("参考文档:")
for i, doc in enumerate(result['retrieved_docs'], 1):
print(f" {i}. {doc['text'][:100]}... (来源: {doc['source']})")
if __name__ == "__main__":
main()

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from pymilvus import connections, Collection, CollectionSchema, FieldSchema, DataType, utility
from config import MILVUS_HOST, MILVUS_PORT, COLLECTION_NAME, EMBEDDING_DIM
def connect_to_milvus():
"""连接到Milvus数据库"""
connections.connect("default", host=MILVUS_HOST, port=MILVUS_PORT)
def create_collection():
"""创建Milvus集合"""
# # 如果集合存在,先删除(仅首次运行需要,后续可注释)
# if utility.has_collection(COLLECTION_NAME):
# utility.drop_collection(COLLECTION_NAME) # 添加这行代码删除旧集合
"""创建Milvus集合"""
if utility.has_collection(COLLECTION_NAME):
return Collection(COLLECTION_NAME)
# 定义字段
id_field = FieldSchema(
name="id",
dtype=DataType.INT64,
is_primary=True,
auto_id=True
)
embedding_field = FieldSchema(
name="embedding",
dtype=DataType.FLOAT_VECTOR,
dim=EMBEDDING_DIM
)
text_field = FieldSchema(
name="text",
dtype=DataType.VARCHAR,
max_length=65535
)
source_field = FieldSchema(
name="source",
dtype=DataType.VARCHAR,
max_length=256
)
schema = CollectionSchema(
fields=[id_field, embedding_field, text_field, source_field],
description="Knowledge base collection"
)
collection = Collection(
name=COLLECTION_NAME,
schema=schema,
using='default',
shards_num=2
)
# 创建索引
index_params = {
"index_type": "IVF_FLAT",
"metric_type": "L2",
"params": {"nlist": 128}
}
collection.create_index(field_name="embedding", index_params=index_params)
return collection
def insert_documents(collection, embeddings, texts, sources):
"""插入文档到集合"""
insert_data = [
embeddings,
texts,
sources
]
collection.insert(insert_data)
collection.flush()
def search_documents(collection, query_embedding, top_k=5):
"""搜索相似文档"""
collection.load()
search_params = {
"metric_type": "L2",
"params": {"nprobe": 10}
}
results = collection.search(
data=[query_embedding],
anns_field="embedding",
param=search_params,
limit=top_k,
output_fields=["text", "source"]
)
retrieved_docs = []
for hits in results:
for hit in hits:
retrieved_docs.append({
'text': hit.entity.get('text'),
'source': hit.entity.get('source'),
'distance': hit.distance
})
return retrieved_docs

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from milvus_client import connect_to_milvus, create_collection, insert_documents, search_documents
from document_processor import DocumentProcessor
from config import LLM_MODEL
from org.config import SALT_PROMPT, REISASOL_PROMPT
class RAGSystem:
def __init__(self):
# 连接Milvus
connect_to_milvus()
# 创建集合
self.collection = create_collection()
# 初始化文档处理器
self.processor = DocumentProcessor()
# 加载集合
self.collection.load()
def add_documents(self, documents):
"""添加文档到知识库"""
# 分割文档
split_texts = self.processor.split_documents(documents)
# 生成嵌入
embeddings = self.processor.generate_embeddings(split_texts)
# 准备插入数据
texts = [text['content'] for text in split_texts]
sources = [text['source'] for text in split_texts]
# 插入数据
insert_documents(self.collection, embeddings, texts, sources)
return len(split_texts)
def query(self, question, top_k=3):
"""基础查询:生成标准答案"""
# 生成查询嵌入
query_embedding = self.processor.embedder.embed_query(question)
# 检索相关文档
retrieved_docs = search_documents(self.collection, query_embedding, top_k)
# 构造上下文
context = "\n".join([doc['text'] for doc in retrieved_docs])
# 生成标准答案
answer = self._generate_answer(question, context)
return {
'answer': answer,
'retrieved_docs': retrieved_docs,
'context': context
}
def convert_songs_to_documents(songs_data):
"""将歌曲数据转换为文档格式"""
documents = []
for song in songs_data:
content = f"歌曲名称: {song['title']}, 歌手: {song['artist']}, BPM: {song['bpm']}, 版本: {song['version']}"
documents.append({
'content': content,
'source': f"歌曲数据 - {song['title']}"
})
return documents
def add_song_data(self, songs_data):
"""添加歌曲数据到知识库"""
# 转换数据格式
song_documents = self.convert_songs_to_documents(songs_data)
# 复用现有文档处理流程
split_texts = self.processor.split_documents(song_documents)
embeddings = self.processor.generate_embeddings(split_texts)
texts = [text['content'] for text in split_texts]
sources = [text['source'] for text in split_texts]
insert_documents(self.collection, embeddings, texts, sources)
return len(split_texts)
# -------------------------- 新增:角色扮演式查询方法 --------------------------
def role_play_query(self, question, role, top_k=3):
"""
角色扮演查询:按指定角色生成符合身份的答案
:param question: 用户问题如“Python怎么定义函数
:param role: 指定角色如“Python讲师”“产品经理”“小学生辅导员”
:param top_k: 检索相关文档的数量
:return: 包含角色化答案的结果字典
"""
# 1. 复用现有检索逻辑和query方法完全一致确保上下文相关性
query_embedding = self.processor.embedder.embed_query(question)
retrieved_docs = search_documents(self.collection, query_embedding, top_k)
context = "\n".join([doc['text'] for doc in retrieved_docs])
# 2. 调用新增的“角色化答案生成方法”区别于基础的_generate_answer
role_answer = self._generate_role_answer(question, context, role)
# 3. 返回结构和query方法一致便于后续使用
return {
'answer': role_answer, # 角色化的答案
'role': role, # 明确返回当前角色
'retrieved_docs': retrieved_docs,
'context': context
}
# ----------------------------------------------------------------------------
def _generate_answer(self, question, context):
"""基础答案生成:无角色限制"""
from config import OLLAMA_BASE_URL
import requests
prompt = f"""
基于以下上下文回答问题。如果上下文不包含相关信息,请说明无法基于提供的资料回答。
要求:答案简洁、准确,符合技术文档规范。
上下文:
{context}
问题: {question}
回答:
"""
try:
base_url = OLLAMA_BASE_URL.rstrip('/')
ollama_api_url = f"{base_url}/api/generate"
request_body = {
"model": LLM_MODEL,
"prompt": prompt,
"stream": False
}
response = requests.post(ollama_api_url, json=request_body, timeout=30)
if response.status_code == 200:
return response.json().get("response", "未获取到答案内容")
else:
return f"Ollama API请求失败状态码{response.status_code},原因:{response.text}"
except requests.exceptions.ConnectionError:
return f"连接Ollama服务失败{ollama_api_url}),请检查网络"
except requests.exceptions.Timeout:
return f"连接Ollama服务超时30秒可能是模型生成过慢"
except Exception as e:
return f"生成答案出错:{str(e)}"
# -------------------------- 新增:角色化答案生成方法 --------------------------
def _generate_role_answer(self, question, context, role):
"""
角色化答案生成按指定角色调整prompt语气和内容风格
:param question: 用户问题
:param context: 检索到的相关文档上下文
:param role: 指定角色
:return: 符合角色身份的答案
"""
from config import OLLAMA_BASE_URL
import requests
# 核心区别在prompt中加入“角色定义”让模型按身份生成内容
# 不同角色对应不同的语气要求(可根据需要扩展更多角色的提示词)
role_prompt_map = {
"纱露朵": SALT_PROMPT,
"Reisasol" : REISASOL_PROMPT
}
# 获取当前角色的提示词(若角色不在预设中,用默认提示词)
role_desc = role_prompt_map.get(
role,
f"你是{role},请基于上下文回答问题,保持语气符合{role}的身份。"
)
# 构造角色化prompt
prompt = f"""
{role_desc}
核心要求:基于以下上下文回答,如果上下文不包含相关信息,请给出最合适的回答,并确保内容符合{role}的身份。”。
上下文:
{context}
问题: {question}
回答:
"""
# 后续API调用逻辑和_generate_answer一致复用网络请求代码
try:
base_url = OLLAMA_BASE_URL.rstrip('/')
ollama_api_url = f"{base_url}/api/generate"
request_body = {
"model": LLM_MODEL,
"prompt": prompt,
"stream": False
}
response = requests.post(ollama_api_url, json=request_body, timeout=30)
if response.status_code == 200:
return response.json().get("response", "未获取到答案内容")
else:
return f"Ollama API请求失败状态码{response.status_code},原因:{response.text}"
except requests.exceptions.ConnectionError:
return f"连接Ollama服务失败{ollama_api_url}),请检查网络"
except requests.exceptions.Timeout:
return f"连接Ollama服务超时30秒可能是模型生成过慢"
except Exception as e:
return f"生成角色化答案出错:{str(e)}"
# ----------------------------------------------------------------------------

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pymilvus==2.4.1
langchain==0.1.0
langchain-community==0.0.28
sentence-transformers==2.2.2
ollama==0.1.7
numpy==1.24.3
flask~=3.1.2
uvicorn~=0.37.0
fastapi~=0.118.2
requests~=2.32.5

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songUpdate.py Normal file
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import requests
import time
# 源API和目标API地址
SOURCE_API = "https://union.godserver.cn/api/union/uni"
TARGET_API = "http://100.80.156.98:58329/api/songs/insert"
BATCH_SIZE = 50 # 每批上传数量
def fetch_songs():
"""从源API获取歌曲数据"""
try:
response = requests.get(SOURCE_API, timeout=30)
response.raise_for_status() # 检查请求是否成功
return response.json()
except requests.exceptions.RequestException as e:
print(f"获取歌曲数据失败: {e}")
return None
def upload_batch(batch):
"""上传一批歌曲数据"""
try:
# 转换数据格式,只保留需要的字段
formatted_data = [{"id": item["id"], "title": item["title"]} for item in batch]
response = requests.post(
TARGET_API,
json=formatted_data,
headers={"Content-Type": "application/json"},
timeout=30
)
response.raise_for_status()
return True, response.json()
except requests.exceptions.RequestException as e:
print(f"上传失败: {e}")
return False, None
def main():
# 获取所有歌曲数据
songs = fetch_songs()
if not songs or not isinstance(songs, list):
print("没有获取到有效的歌曲数据")
return
total = len(songs)
print(f"共获取到 {total} 首歌曲,开始分批次上传...")
# 分批处理
for i in range(0, total, BATCH_SIZE):
batch = songs[i:i + BATCH_SIZE]
batch_num = i // BATCH_SIZE + 1
batch_count = (total + BATCH_SIZE - 1) // BATCH_SIZE
print(f"正在上传第 {batch_num}/{batch_count} 批,共 {len(batch)} 条数据")
success, result = upload_batch(batch)
if success:
print(f"{batch_num} 批上传成功")
else:
print(f"{batch_num} 批上传失败,将重试...")
# 失败重试一次
time.sleep(2)
success, result = upload_batch(batch)
if success:
print(f"{batch_num} 批重试成功")
else:
print(f"{batch_num} 批重试仍失败,请后续手动处理")
# 避免请求过于频繁
time.sleep(1)
print("所有批次处理完毕")
if __name__ == "__main__":
main()

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# 导入必要的库
from pymilvus import connections, Collection, CollectionSchema, FieldSchema, DataType, utility
from langchain.text_splitter import RecursiveCharacterTextSplitter
from langchain_community.embeddings import OllamaEmbeddings
from fastapi import FastAPI, Query, Body # 新增 Body 导入
from typing import List, Dict
import uvicorn
# 配置参数
# Milvus配置
MILVUS_HOST = "100.80.156.98"
MILVUS_PORT = "19530"
COLLECTION_NAME = "song_knowledge_base" # 歌曲专属集合
EMBEDDING_DIM = 768
# Ollama配置仅用于生成嵌入无AI回答逻辑
OLLAMA_BASE_URL = "http://100.89.166.61:11434/"
EMBEDDING_MODEL = "nomic-embed-text"
# 文本分割配置
CHUNK_SIZE = 500
CHUNK_OVERLAP = 50
# 初始化FastAPI应用
app = FastAPI(title="歌曲模糊查询API服务", version="1.0")
# Milvus客户端工具函数
def connect_to_milvus():
"""连接到Milvus数据库"""
connections.connect("default", host=MILVUS_HOST, port=MILVUS_PORT)
def create_song_collection():
"""创建歌曲专属Milvus集合"""
if utility.has_collection(COLLECTION_NAME):
return Collection(COLLECTION_NAME)
# 定义字段(适配歌曲数据)
id_field = FieldSchema(
name="id",
dtype=DataType.INT64,
is_primary=True,
auto_id=True
)
embedding_field = FieldSchema(
name="embedding",
dtype=DataType.FLOAT_VECTOR,
dim=EMBEDDING_DIM
)
text_field = FieldSchema(
name="text",
dtype=DataType.VARCHAR,
max_length=65535 # 存储歌曲信息文本
)
song_id_field = FieldSchema(
name="song_id",
dtype=DataType.INT64, # 歌曲原始ID
max_length=64
)
title_field = FieldSchema(
name="title",
dtype=DataType.VARCHAR,
max_length=256 # 歌曲名称(用于快速匹配)
)
schema = CollectionSchema(
fields=[id_field, embedding_field, text_field, song_id_field, title_field],
description="Song knowledge base collection for fuzzy search"
)
collection = Collection(
name=COLLECTION_NAME,
schema=schema,
using='default',
shards_num=2
)
# 创建向量索引(用于模糊语义匹配)
index_params = {
"index_type": "IVF_FLAT",
"metric_type": "L2",
"params": {"nlist": 128}
}
collection.create_index(field_name="embedding", index_params=index_params)
return collection
def insert_song_documents(collection, embeddings, texts, song_ids, titles):
"""插入歌曲文档到集合"""
insert_data = [
embeddings,
texts,
song_ids,
titles
]
collection.insert(insert_data)
collection.flush()
def search_song_by_fuzzy(collection, query_text, top_k=10):
"""模糊查询歌曲(基于语义嵌入匹配)"""
# 生成查询文本的嵌入向量
embedder = OllamaEmbeddings(
model=EMBEDDING_MODEL,
base_url=OLLAMA_BASE_URL
)
query_embedding = embedder.embed_query(query_text)
# Milvus向量搜索移除 output_fields 中的 "distance"
collection.load()
search_params = {
"metric_type": "L2",
"params": {"nprobe": 10}
}
results = collection.search(
data=[query_embedding],
anns_field="embedding",
param=search_params,
limit=top_k,
output_fields=["song_id", "title", "text"] # 去掉 "distance"
)
# 格式化结果distance 从 hit 对象中获取,无需从 entity 中提取)
matched_songs = []
for hits in results:
for hit in hits:
matched_songs.append({
"song_id": hit.entity.get("song_id"),
"title": hit.entity.get("title"),
"detail": hit.entity.get("text"),
"similarity_score": 1 / (1 + hit.distance) # hit.distance 直接获取
})
return matched_songs
# 文档处理器(简化版,仅用于歌曲文本处理)
class SongDocumentProcessor:
def __init__(self):
self.embedder = OllamaEmbeddings(
model=EMBEDDING_MODEL,
base_url=OLLAMA_BASE_URL
)
self.text_splitter = RecursiveCharacterTextSplitter(
chunk_size=CHUNK_SIZE,
chunk_overlap=CHUNK_OVERLAP,
separators=["\n\n", "\n", " ", ""]
)
def process_songs(self, songs_data: List[Dict]):
"""处理歌曲数据,生成嵌入向量"""
# 构造歌曲文本信息
texts = []
song_ids = []
titles = []
for song in songs_data:
song_id = song.get("id", 0)
title = song.get("title", "未知歌曲")
# 拼接歌曲详情文本(可扩展其他字段)
detail_text = f"歌曲ID: {song_id}, 歌曲名称: {title}"
texts.append(detail_text)
song_ids.append(song_id)
titles.append(title)
# 生成嵌入向量
embeddings = self.embedder.embed_documents(texts)
return embeddings, texts, song_ids, titles
# 初始化Milvus连接和集合
connect_to_milvus()
song_collection = create_song_collection()
song_processor = SongDocumentProcessor()
# API接口定义
@app.post("/api/songs/insert", summary="录入歌曲数据")
def insert_songs(
songs: List[Dict] = Body(..., description="歌曲列表,格式:[{\"id\":0,\"title\":\"实例歌曲\"}]")
):
"""
录入歌曲数据到知识库:
- 接收歌曲列表,格式为[{"id": 歌曲ID, "title": "歌曲名称"}]
- 自动处理并存储到Milvus支持后续模糊查询
"""
if not songs:
return {"code": 400, "message": "歌曲数据不能为空", "data": None}
# 处理歌曲数据
embeddings, texts, song_ids, titles = song_processor.process_songs(songs)
# 插入Milvus
insert_song_documents(song_collection, embeddings, texts, song_ids, titles)
return {
"code": 200,
"message": f"成功录入 {len(songs)} 首歌曲",
"data": {
"inserted_count": len(songs),
"example": songs[:1] # 返回第一条作为示例
}
}
@app.get("/api/songs/search", summary="模糊查询歌曲")
def fuzzy_search_songs(
keyword: str = Query(..., description="查询关键词(歌曲名称模糊匹配)"),
top_k: int = Query(10, ge=1, le=50, description="返回匹配数量1-50之间")
):
"""
模糊查询歌曲(基于语义相似度):
- 输入关键词,返回语义最相似的歌曲列表
- 支持同义词、拼写误差等模糊场景匹配
"""
if not keyword.strip():
return {"code": 400, "message": "查询关键词不能为空", "data": None}
# 执行模糊搜索
matched_songs = search_song_by_fuzzy(song_collection, keyword, top_k)
return {
"code": 200,
"message": f"找到 {len(matched_songs)} 首匹配歌曲",
"data": {
"keyword": keyword,
"matched_count": len(matched_songs),
"songs": matched_songs
}
}
# 主函数运行API服务
def main():
print("启动歌曲模糊查询API服务...")
print(f"服务地址http://127.0.0.1:58329")
print(f"API文档http://127.0.0.1:58329/docs")
# 启动uvicorn服务
uvicorn.run(app, host="0.0.0.0", port=58329)
if __name__ == "__main__":
main()