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+from pymilvus import Collection, connections, utility, FieldSchema, CollectionSchema, DataType
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+import pymysql.cursors
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+import time
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+import requests
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+
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+# import pymysql
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+from tqdm import tqdm
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+from openai import OpenAI
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+from typing import List, Dict, Any, Optional
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+from cosine_similarity_example import cosine_similarity, cosine_similarity_numpy
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+from datetime import datetime, timedelta
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+################################连接milvus数据库 A
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+# 配置信息
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+MILVUS_CONFIG = {
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+ "host": "c-981be0ee7225467b.milvus.aliyuncs.com",
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+ "user": "root",
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+ "password": "Piaoquan@2025",
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+ "port": "19530",
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+}
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+print("正在连接 Milvus 数据库...")
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+connections.connect("default", **MILVUS_CONFIG)
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+################################连接milvus数据库 B
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+
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+def iterate_milvus_collection(collection, batch_size=1000):
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+ """遍历Milvus集合的函数"""
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+ # 获取集合中的实体总数
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+ total_entities = collection.num_entities
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+ print(f"集合中总共有 {total_entities} 条记录")
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+
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+ # 分页遍历
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+ offset = 0
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+ count = 0
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+ batch_size =1
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+
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+ while offset < total_entities:
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+ # 使用query方法进行分页查询
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+ # expr="" 表示查询所有记录
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+ # limit控制每页返回的记录数
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+ # offset控制从第几条记录开始查询
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+ results = collection.query(
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+ expr="",
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+ limit=batch_size,
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+ offset=offset,
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+ output_fields=["id", "doc_id", "chunk_id", "vector_text","vector_summary","vector_questions"] # 指定要返回的字段
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+ )
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+
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+ # 处理当前批次的结果
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+ for item in results:
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+ count += 1
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+ print(f"记录 {count}: id={item['id']}, doc_id={item['doc_id']}, chunk_id={item['chunk_id']}")
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+ # print("item['vector_summary'] is ", item['vector_summary'])
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+ # print("item['vector_questions'] is ", item['vector_questions'])
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+ # 这里可以根据需要处理每条记录
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+ # exit()
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+ # 更新偏移量
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+ offset += len(results)
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+
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+ # 如果本批次结果为空，说明已经遍历完毕
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+ if len(results) == 0:
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+ break
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+
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+################################连接mysql数据库 A
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+MYSQL_CONFIG = {
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+ "host": "rm-bp13g3ra2f59q49xs.mysql.rds.aliyuncs.com",
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+ "user": "wqsd",
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+ "password": "wqsd@2025",
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+ "port": 3306,
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+ "db": "rag",
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+ "charset": "utf8mb4",
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+}
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+class DatabaseManager:
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+ def __init__(self):
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+ self.connection = None
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+
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+ def connect(self):
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+ self.connection = pymysql.connect(
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+ **MYSQL_CONFIG,
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+ cursorclass=pymysql.cursors.DictCursor
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+ )
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+ print("✅ MySQL connected")
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+
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+ def close(self):
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+ if self.connection:
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+ self.connection.close()
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+ print("MySQL closed")
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+
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+ def fetch(self, query, params=None):
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+ with self.connection.cursor() as cursor:
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+ cursor.execute(query, params or ())
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+ return cursor.fetchall()
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+
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+ def fetch_one(self, query, params=None):
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+ with self.connection.cursor() as cursor:
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+ # print("query is ", query)
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+ cursor.execute(query)
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+ return cursor.fetchone()
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+ def execute_ddl(self, query=None):
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+ if query is None:
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+ return False
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+ with self.connection.cursor() as cursor:
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+ cursor.execute(query)
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+ self.connection.commit()
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+ return True
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+################################
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+
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+###########
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+mysql_manager = DatabaseManager()
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+mysql_manager.connect()
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+###########
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+
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+test_query="set autocommit = 1"
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+res = mysql_manager.fetch_one(test_query)
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+################################连接mysql数据库 B
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+
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+################################连接Embedding service A
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+VLLM_SERVER_URL = "http://192.168.100.31:8000/v1/embeddings"
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+DEFAULT_MODEL = "/models/Qwen3-Embedding-4B"
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+
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+def get_basic_embedding(text: str, model=DEFAULT_MODEL):
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+ """通过HTTP调用在线embedding服务"""
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+ headers = {
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+ "Content-Type": "application/json"
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+ }
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+ data = {
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+ "model": model,
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+ "input": text
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+ }
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+
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+ response = requests.post(
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+ VLLM_SERVER_URL,
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+ headers=headers,
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+ json=data
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+ )
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+
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+ if response.status_code == 200:
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+ result = response.json()
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+ return result["data"][0]["embedding"]
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+ else:
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+ raise Exception(f"Failed to get embedding: {response.status_code} {response.text}")
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+################################连接Embedding service B
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+
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+################################连接deepseek v3 A
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+DEEPSEEK_API_KEY = "sk-cfd2df92c8864ab999d66a615ee812c5"
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+DEEPSEEK_MODEL = {
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+ "DeepSeek-R1": "deepseek-reasoner",
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+ "DeepSeek-V3": "deepseek-chat",
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+}
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+
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+def get_deepseek_completion(
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+ model: str,
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+ prompt: str,
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+ output_type: str = "text",
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+ tool_calls: bool = False,
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+ tools: List[Dict] = None
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+) -> Optional[Dict | List | str]:
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+ """调用DeepSeek API获取回答"""
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+ messages = [{"role": "user", "content": prompt}]
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+ kwargs = {
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+ "model": DEEPSEEK_MODEL.get(model, "deepseek-chat"),
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+ "messages": messages,
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+ }
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+ # 添加工具调用参数
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+ if tool_calls and tools:
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+ kwargs["tools"] = tools
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+ kwargs["tool_choice"] = "auto"
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+
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+ # 创建OpenAI客户端连接DeepSeek API
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+ client = OpenAI(api_key=DEEPSEEK_API_KEY, base_url="https://api.deepseek.com")
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+
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+ # 设置JSON输出格式
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+ if output_type == "json":
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+ kwargs["response_format"] = {"type": "json_object"}
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+
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+ try:
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+ response = client.chat.completions.create(**kwargs)
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+ choice = response.choices[0]
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+
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+ if output_type == "text":
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+ return choice.message.content # 只返回文本
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+ elif output_type == "json":
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+ import json
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+ return json.loads(choice.message.content)
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+ else:
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+ raise ValueError(f"Invalid output_type: {output_type}")
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+
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+ except Exception as e:
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+ print(f"[ERROR] DeepSeek API调用失败: {e}")
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+ return None
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+################################连接deepseek v3 B
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+
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+#######################################################
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+#######################################################开发
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+#######################################################
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+
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+# 方法1: 使用utility.describe_collection()查看集合信息
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+collection_name = "chunk_multi_embeddings_v2_trsc"
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+print(f"\n📋 正在查看集合 '{collection_name}' 的信息...")
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+
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+# 正确的方式：创建Collection对象
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+milvus_client = Collection(name=collection_name)
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+print(milvus_client)
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+milvus_client.load()
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+total = milvus_client.num_entities
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+print("total is ", total)
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+
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+############################遍历mysql中的content_chunks_trsc,获取doc_id和chunk_id,条件为updated_at时间戳小于当天的前一天
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+
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+# query = """
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+# select doc_id, chunk_id from content_chunks_trsc where updated_at<NOW()- INTERVAL 1 DAY;
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+# """
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+# results = mysql_manager.fetch(query=query)
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+# print(f"获取到{len(results)}条需要处理的记录")
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+# print(results[0])
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+
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+#############################遍历milvus中的collection chunk_multi_embeddings_v2_trsc 找出所有doc_id，chunk_id 在results 中的记录
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+res_id = milvus_client.query(
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+ expr="",
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+ output_fields=['id'],
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+ limit=10000,
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+ consistency_level="Strong"
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+ )
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+print("res_id length is ", len(res_id)) # 6198
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+
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+total = len(res_id)
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+# assert len(res_id) == total
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+
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+# exit()
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+# batch_size=1000
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+processed_count = 0
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+
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+for i in tqdm(range(0,total)):
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+ try:
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+ ####update selelct 数据
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+ # print("expr is ", f"id == {res_id[i]['id']}")
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+ # 从错误信息得知id字段是Int64类型，需要作为整数进行比较，不能用引号包裹
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+ results = milvus_client.query(
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+ expr=f"id == {res_id[i]['id']}", # 使用双等号，直接使用整数值
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+ limit=1,
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+ output_fields=['*'],
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+ consistency_level="Strong"
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+ )
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+ if not results:
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+ print(f"11111111########id {res_id[i]['id']} 没有查询到结果")
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+ continue
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+ ####找外健
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+ temp_doc_id = results[0]['doc_id']
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+ temp_chunk_id = results[0]['chunk_id']
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+ temp_vector_text = results[0]['vector_text']
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+ temp_vector_summary = results[0]['vector_summary']
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+ temp_vector_questions = results[0]['vector_questions']
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+
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+ ####访问mysql，获取updated_at, 如果 updated_at<NOW()- INTERVAL 1 DAY 返回false，则已经处理过，pass，否则正常处理
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+ query = f"""
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+ select text,updated_at from content_chunks_trsc where doc_id = '{temp_doc_id}' and chunk_id = '{temp_chunk_id}';
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+ """
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+ results = mysql_manager.fetch_one(query=query)
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+ if not results:
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+ print(f"222222222#######doc_id {temp_doc_id} chunk_id {temp_chunk_id} 没有查询到结果")
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+ continue
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+ temp_updated_at = results['updated_at']
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+ if temp_updated_at > datetime.now() - timedelta(days=1):
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+ print(f"doc_id {temp_doc_id} chunk_id {temp_chunk_id} 已经处理过，updated_at {temp_updated_at}")
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+ continue
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+ #############
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+ # exit()
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+ insert_data = []
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+
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+ ####找mysql表text
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+ query = f"""
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+ select text from content_chunks_trsc where doc_id = '{temp_doc_id}' and chunk_id = '{temp_chunk_id}';
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+ """
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+ results = mysql_manager.fetch_one(query=query)
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+
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+ if not results:
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+ print(f"3333333*******doc_id {temp_doc_id} chunk_id {temp_chunk_id} 没有查询到text结果")
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+ continue
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+ temp_text = results['text']
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+
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+ # ####访问deepseek
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+ # """
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+ # 你是一个专业的文本转写助手，负责将用户输入的文本进行准确的转写。请确保转写结果与原始文本信息保持一致，避免添加任何额外的解释，注释。\
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+ # 请务必保持语言准确，精炼。以下是信息
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+ # """
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+ # ####grok
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+ # system_pre_prompt = f'''
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+ # 你是一个专业的文本精炼专家。请将以下原文改写成更简练、精确的版本。要求：
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+ # 1. 逐句检查原文，保留所有信息、事实、数据、关系和含义，不丢失任何细节。
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+ # 2. 去除冗余词语、重复表达和不必要的描述，使语言更紧凑和精准。
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+ # 3. 输出纯文本，不要添加任何格式化元素，如标题、列表、编号、粗体、换行符、额外解释或总结语句。只输出改写后的文本。
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+ # 4. 如果原文有专业术语，保持原样。
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+
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+ # 原文：{temp_text}
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+ # '''
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+
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+ # trans_answer_grok = get_deepseek_completion(
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+ # model="DeepSeek-V3", # 使用DeepSeek V3模型
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+ # prompt=system_pre_prompt, # 使用query_text_1作为prompt
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+ # output_type="text" # 返回文本格式
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+ # )
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+ # print("trans_answer grok is ", trans_answer_grok)
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+
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+ print("text is", temp_text)
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+
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+ ###chatgpt
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+ system_pre_prompt = f'''
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+ 请将以下文本转写为更简练、精确的表达方式。转写时需要满足以下要求：
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+ 不丢失信息：转写后的内容必须包含原文中的所有关键信息，任何核心的事实、细节和数据都不能丢失。
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+ 简洁清晰：去除冗余的词汇和不必要的修饰，确保语言简洁明了，信息传达精准。
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+ 无额外格式：转写后的文本应为纯文本，不添加任何额外的格式、列表、标点或其他符号，保持原有的结构。
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+ 请根据这些要求，转写以下段落：{temp_text}
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+ '''
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+ ###chatgpt
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+
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+ trans_answer_gpt = get_deepseek_completion(
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+ model="DeepSeek-V3", # 使用DeepSeek V3模型
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+ prompt=system_pre_prompt, # 使用query_text_1作为prompt
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+ output_type="text" # 返回文本格式
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+ )
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+ # print("text is", temp_text)
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+ print("trans_answer_chatgpt is ", trans_answer_gpt)
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+
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+ # ###compare
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+ # system_pre_prompt = f'''
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+ # 我有两个经过转写后的文本，请你根据以下标准来比较这两个文本，判断哪个文本更好：
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+ # 1. 信息完整性：哪个文本更好地保留了原文的关键信息？如果有任何重要信息缺失，请指出。
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+ # 2. 简洁性：哪个文本更加简洁明了，去除了冗余和不必要的部分？
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+ # 3. 清晰度：哪个文本更容易理解，表达更清晰？
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+ # 4. 精准度：哪个文本更准确地传达了原文的意思，没有歧义或误解？
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+ # 请基于这些标准分别对两个文本进行评估，并给出理由说明哪个文本更优。
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+ # 文本1: {trans_answer_grok}
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+ # 文本2: {trans_answer_gpt}
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+ # '''
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+ # ###compare
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+ # trans_answer_compare = get_deepseek_completion(
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+ # model="DeepSeek-V3", # 使用DeepSeek V3模型
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+ # prompt=system_pre_prompt, # 使用query_text_1作为prompt
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+ # output_type="text" # 返回文本格式
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+ # )
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+ # print("trans_answer_compare is ", trans_answer_compare)
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+
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+ # exit()
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+ # ####访问embedding model 获取转写后的text
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+
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+ temp_embedding = get_basic_embedding(text=temp_text, model=DEFAULT_MODEL)
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+ temp_embedding_trsc = get_basic_embedding(text=trans_answer_gpt, model=DEFAULT_MODEL)
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+
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+ similarity_score = cosine_similarity(temp_embedding, temp_embedding_trsc)
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+
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+ print(f"\n 重写后问题与重写前问题的余弦相似度: {cosine_similarity(temp_embedding, temp_embedding_trsc)}")
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+
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+ # 更新mysql表，将转写后的文本、相似度分数和当前时间戳更新到对应记录中
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+
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+ # test_query="select @@autocommit"
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+ # res = mysql_manager.fetch_one(test_query)
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+ # print("autocommit is ", res['@@autocommit'])
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+ # exit()
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+ update_query = f"""
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+ update content_chunks_trsc set simillarity = {similarity_score}, text = '{trans_answer_gpt}', updated_at = NOW() where doc_id = '{temp_doc_id}' and chunk_id = '{temp_chunk_id}';
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+ """
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+ mysql_manager.fetch_one(update_query)
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+
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+ ####更新milvus 的collection，将转写后的embedding替代原来的embedding
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+ # 更新milvus的collection chunk_multi_embeddings_v2_trsc，使用转写过的text计算出的embedding temp_embedding_trsc 更新其vector_text
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+ # Milvus的upsert方法要求数据格式为字段名到值列表的映射
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+ # 注意：必须包含所有非空且无默认值的字段
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+ upsert_expr = f"id == {res_id[i]['id']}"
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+ # 正确格式：包含所有必需字段
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+ upsert_data = {
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+ "id": res_id[i]['id'], # 注意：upsert操作需要将值放入列表中
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+ "doc_id": temp_doc_id, # 添加必需的doc_id字段
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+ "chunk_id": temp_chunk_id, # 添加必需的chunk_id字段
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+ "vector_text": temp_embedding_trsc, # vector_text字段也需要放入列表中
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+ "vector_summary":temp_vector_summary,
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+ "vector_questions":temp_vector_questions
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+ }
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+ # 执行更新操作
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+ milvus_client.upsert(upsert_data, expr=upsert_expr) # 注意参数顺序：先数据后表达式
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+
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+ processed_count += 1
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+ ##################
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+ if processed_count % 200 == 0:
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+ milvus_client.flush()
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+ except Exception as e:
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+ print(f"处理第{i}条数据时出现异常: {str(e)}")
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+ # 跳过当前循环，继续处理下一条数据
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+ continue
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+milvus_client.flush()
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+
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+
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+
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+
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lookathis@163.com