如何從 (.db) 文件讀取並為 python 變量賦值

Question

我正在嘗試從 (.db) 文件中提取 virtualIP 和 onvifPort。

我有一個 database.db 文件，它看起來像這樣：

    {
    "devices": {
        "193619374120978": {
            "cameras": {
                "14:a7:8b:08:e0:7c": {
                    "slots": {
                        "3": {
                            "onvifPort": "17005",
                            "rtspPort": "18005",
                            "virtualIP": "10.27.15.75",
                            "pubIP": "",
                            "pubOnvifPort": "0",
                            "pubRtspPort": "0"
                        }
                    }
                },
                "ac:cc:8e:a8:84:e1": {
                    "slots": {
                        "2": {
                            "onvifPort": "17003",
                            "rtspPort": "18003",
                            "virtualIP": "10.27.15.75",
                            "pubIP": "",
                            "pubOnvifPort": "0",
                            "pubRtspPort": "0"
                        }
                    }
                },
                "14:a7:8b:22:86:f6": {
                    "slots": {
                        "1": {
                            "onvifPort": "17004",
                            "rtspPort": "18004",
                            "virtualIP": "10.27.15.75",
                            "pubIP": "",
                            "pubOnvifPort": "0",
                            "pubRtspPort": "0"
                        }
                    }
                }
            }
        }
    }
}

我必須使用 python 讀取這個文件並將這個值分配給 python 變量。

我是 python 的新手，我只是嘗試過這樣的事情，但我沒有得到想要的輸出。 我想知道如何打開和讀取 (.db) 文件並分配值

    

with open("bmdatabase.db","r") as infile:
    inputs = json.load(infile)
#con = sqlite3.connect('bmdatabase.db')
#c = con.cursor()
for item in range(len(inputs["devices[].cameras[].slots[]"])):
    IP = inputs["devices[].cameras[].slots[]"][item]["virtualIP"]
    PORT = inputs["devices[].cameras[].slots[]"][item]["onvifPort"]

預期輸出：所有 3 台設備的用戶名和密碼都應保持不變

 
    IP = virtualIP of slot[1]from database.db file
    PORT = onvifPort of slot[1] from database.db file
    USERNAME = "admin" 
    PASSWORD = "Abcd"

    IP = virtualIP of slot[2]from database.db file
    PORT = onvifPort of slot[2] from database.db file
    USERNAME = "admin" 
    PASSWORD = "Abcd"

    IP = virtualIP of slot[3]from database.db file
    PORT = onvifPort of slot[3] from database.db file
    USERNAME = "admin" 
    PASSWORD = "Abcd"

誰能幫我這個？？

Answer 1

for device in inputs["devices"]:
    for camera in device["cameras"]:
        for slot in camera["slots"]:
            IP = slot["virtualIP"]
            PORT = slot["onvifPort"]

Answer 2

你可以試試這個例子來解析你的數據：

db = {
    "devices": {
        "193619374120978": {
            "cameras": {
                "14:a7:8b:08:e0:7c": {
                    "slots": {
                        "3": {
                            "onvifPort": "17005",
                            "rtspPort": "18005",
                            "virtualIP": "10.27.15.75",
                            "pubIP": "",
                            "pubOnvifPort": "0",
                            "pubRtspPort": "0"
                        }
                    }
                },
                "ac:cc:8e:a8:84:e1": {
                    "slots": {
                        "2": {
                            "onvifPort": "17003",
                            "rtspPort": "18003",
                            "virtualIP": "10.27.15.75",
                            "pubIP": "",
                            "pubOnvifPort": "0",
                            "pubRtspPort": "0"
                        }
                    }
                },
                "14:a7:8b:22:86:f6": {
                    "slots": {
                        "1": {
                            "onvifPort": "17004",
                            "rtspPort": "18004",
                            "virtualIP": "10.27.15.75",
                            "pubIP": "",
                            "pubOnvifPort": "0",
                            "pubRtspPort": "0"
                        }
                    }
                }
            }
        }
    }
}


parsed = []
for device_id in db['devices']:
    for camera_mac in db['devices'][device_id]['cameras']:
        for slot in db['devices'][device_id]['cameras'][camera_mac]['slots']:
            parsed.append({
                'IP': db['devices'][device_id]['cameras'][camera_mac]['slots'][slot]['virtualIP'],
                'PORT': db['devices'][device_id]['cameras'][camera_mac]['slots'][slot]['onvifPort'],
                'USERNAME': 'admin',
                'PASSWORD': 'Abcd'
            })


from pprint import pprint
pprint(parsed)

印刷：

[{'IP': '10.27.15.75',
  'PASSWORD': 'Abcd',
  'PORT': '17005',
  'USERNAME': 'admin'},
 {'IP': '10.27.15.75',
  'PASSWORD': 'Abcd',
  'PORT': '17003',
  'USERNAME': 'admin'},
 {'IP': '10.27.15.75',
  'PASSWORD': 'Abcd',
  'PORT': '17004',
  'USERNAME': 'admin'}]

---

編輯：從文件加載數據

import json
db = json.load(open('<your file-name>', 'r'))
print(db)