[英]How to read and assign a value to a python variable from (.db) file
I am trying to extract virtualIP and onvifPort from a (.db) file.我正在尝试从 (.db) 文件中提取 virtualIP 和 onvifPort。
I have a database.db file, which looks like this:我有一个 database.db 文件,它看起来像这样:
{
"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"
}
}
}
}
}
}
}
I have to read this file using python and assign this values to python variables.我必须使用 python 读取这个文件并将这个值分配给 python 变量。
I am new to python and I just tried something like this, but I am not getting the desired output.我是 python 的新手,我只是尝试过这样的事情,但我没有得到想要的输出。 I would like to know how to open and read a (.db) file and assign the values我想知道如何打开和读取 (.db) 文件并分配值
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"]
expected output: username and password should be constant for all the 3 devices预期输出:所有 3 台设备的用户名和密码都应保持不变
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"
can anyone help me with this??谁能帮我这个??
for device in inputs["devices"]:
for camera in device["cameras"]:
for slot in camera["slots"]:
IP = slot["virtualIP"]
PORT = slot["onvifPort"]
You can try this example to parse your data:你可以试试这个例子来解析你的数据:
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)
Prints: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'}]
EDIT: To load the data from file编辑:从文件加载数据
import json
db = json.load(open('<your file-name>', 'r'))
print(db)
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