python+sqlite3（为当前线程获取一个独立的SQLite连接）

徐同保2026-02-11 10:49

db/index.py

python 复制代码

import threading
import sqlite3

thread_local_data = threading.local()

# 测试数据库连接
def test():
    conn = sqlite3.connect("E:/temp/m-yuying-db/my_yuying_dev_local.db")
    cu = conn.cursor()
    cu.execute("select * from user")

    data = cu.fetchall()
    total = len(data)
    print("data", total)


# 获取数据库连接
def handleDbConnection():
    if not hasattr(thread_local_data, "connection"):
        thread_local_data.connection = sqlite3.connect(
            "E:/temp/m-yuying-db/my_yuying_dev_local.db", check_same_thread=False
        )
    return thread_local_data.connection

light/user/index.py

python 复制代码

from flask import request, jsonify
from db.index import test, handleDbConnection


def userSearch():
    req = request.get_json()
    print(req)
    # test()
    conn = handleDbConnection()
    cu = conn.cursor()
    cu.execute("select * from user")
    data = cu.fetchall()
    total = len(data)
    print("data2", total)
    return jsonify(
        {"code": 200, "data": {"name": req["name"], "total": total}, "msssage": "成功"}
    )