Python 已创建数据库文件，没有数据/架构

在提供的路径中创建.db文件。打印输出显示在终端窗口中，但.db文件中没有数据/架构。没有出现错误，语法似乎正确。这是密码。我不知道为什么，

conn.commit（）

位于正确的区域。如有任何信息，将不胜感激

from scapy.all import *
from scapy.layers import dhcp
import logging
logging.getLogger("scapy.runtime").setLevel(logging.ERROR)
runtime = logging.getLogger('scapy.runtime')
runtime.setLevel(logging.ERROR)
loading = logging.getLogger('scapy.loading')
loading.setLevel(logging.ERROR)
from scapy.layers.l2 import Ether
from scapy.layers.all import BOOTP
from scapy.layers.all import DHCP, DHCPTypes, DHCPOptions, DHCPRevOptions
from scapy import route
import urllib
import urllib3
from urllib.request import urlopen
import os
import sqlite3
from datetime import datetime
import sys


DIR_NAME = os.path.dirname(__file__)
db_path = os.path.join(DIR_NAME, "/home/dtman/Desktop/Secure_DHCP  /secureDHCP-DB.db")

conn = sqlite3.connect(db_path)
c = conn.cursor()
conn.commit()


def make_table():
   c.execute('CREATE TABLE IF NOT EXISTS secureDHCP(mac VARCHAR(50), vendorId VARCHAR(50), time VARCHAR(50), oData VARCHAR(50)')
   conn.commit()
   c.close()
   conn.close()


def the_data():
   mac = src_mac()
   vendorId = vendor()
   time = timeData()
   oData = optData()
   c.execute("INSERT INTO secureDHCP (mac, vendorId, time, oData) VALUES (?, ?, ?, ?)",
          (src_mac, vendor, timeDate, optData))
   conn.commit()


s=socket.socket(socket.PF_PACKET, socket.SOCK_RAW, socket.ntohs(0x0800))

print("Input network interface")
interface = input()


def pkt_data(pkt):
    src_mac = pkt.getlayer(Ether).fields['src']
    url = 'http://api.macvendors.com/' + src_mac
    r = urlopen(url)
    vendor = r.read()
    timeData = str(datetime.now())
    full_options = pkt.getlayer(DHCP).fields['options']
    dhcp_options = [o for o in full_options if isinstance(o, tuple)]
    for x in dhcp_options:
        if x[0] in ('message-type', 'requested_addr', 'hostname'):
            optData = x[1]
            print('MAC: {} /// Vendor: {} /// Time {} /// optData: {}'.format(src_mac, vendor, timeData, optData))

sniff(iface=interface, prn=pkt_data, filter='udp port (67 or 68)', store=0)

终端中的输出：

`MAC: 00:00:00:00:00:00 /// Vendor: b'BRAND, Inc.' /// Other Data: 3
 MAC: 00:00:00:00:00:00 /// Vendor: b'BRAND, Inc.' /// Other Data: 192.168.1.4
 MAC: 00:00:00:00:00:00 /// Vendor: b'BRAND, Inc.' /// Other Data: b'HOSTNAME'`

---

首先，您没有像

make\u table（）

那样调用该方法。其次，您调用

make\u table（）

在它里面，为什么要关闭

conn

？您的

the_data（）

如何插入日期？请给出最小示例。下面这样的操作永远不会出错

conn = sqlite3.connect(db_path)
c = conn.cursor()
c.execute('CREATE TABLE IF NOT EXISTS secureDHCP(mac VARCHAR(50), vendorId VARCHAR(50), time VARCHAR(50), oData VARCHAR(50)')
conn.commit()
c.execute("INSERT INTO secureDHCP (mac, vendorId, time, oData) VALUES (?, ?, ?, ?)",
      (src_mac, vendor, timeDate, optData))
conn.commit()
c.close()
conn.close()

---

你能发布打印输出吗？我的意思是，你能编辑你的问题并添加打印输出。。。注释不是那一大堆代码的合适位置我不得不围绕我的代码重新构造你的代码，但我成功了。干杯我太新了，不能认为这个答案有用。但在获得声誉后，我们将继续努力。干杯