WeChatMsg/app/DataBase/media_msg.py

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Python
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2023-12-03 12:19:24 +08:00
import os.path
import sqlite3
import threading
lock = threading.Lock()
db_path = "./app/Database/Msg/MediaMSG3.db"
def singleton(cls):
_instance = {}
def inner():
if cls not in _instance:
_instance[cls] = cls()
return _instance[cls]
return inner
@singleton
class MediaMsg:
def __init__(self):
self.DB = None
self.cursor: sqlite3.Cursor = None
self.open_flag = False
self.init_database()
def init_database(self):
if not self.open_flag:
if os.path.exists(db_path):
self.DB = sqlite3.connect(db_path, check_same_thread=False)
# '''创建游标'''
self.cursor = self.DB.cursor()
self.open_flag = True
if lock.locked():
lock.release()
def get_media_buffer(self, reserved0):
pass
sql = '''
select Buf
from Media
where Reserved0 = ?
'''
try:
lock.acquire(True)
self.cursor.execute(sql, [reserved0])
return self.cursor.fetchone()
finally:
lock.release()
if __name__ == '__main__':
db_path = './Msg/MediaMSG3.db'
media_msg_db = MediaMsg()
reserved = '823076859361714342'
buf = media_msg_db.get_media_buffer(reserved)
print(buf)