For the article , The title is the essence of its concentration. ; So for video , Its cover is probably the most eye-catching frame .B standing , As a hot short video platform recently , There are all kinds of dances in its dance area , Especially house dance , suffer greatly “ Indoorsman ” The love of .（ Don't tell me anything, black silk 、jk, I really don't like ）
So , I'll try to get it with a crawler B Station cover .
B The station has anti climbing measures , I started by analyzing web pages , To no avail .
Think about it. , It's so hot B standing , I'm definitely not the only one who wants to climb , So , I started searching for relevant articles and videos .
A slap , Soon! , I found one , according to B standing AV No. crawling to get the cover picture of the article , I tried , Why , It really works 🤩（ Ecstasy in heart ）
# according to aid, Get the cover https://api.bilibili.com/x/web-interface/view?aid=（aid）
Just think about it , Since last year ,B The station began to use BV The no. , Which come of AV Give me the number , In the article AV Where did the number come from ？ harm , I read the date of the article again ,2019 year , Oh , That's OK , People write that it will ,B The station hasn't been changed yet
There are more ways than difficulties , Now at least I know how to use AV Number , Then I use BV The number is found AV Don't you just number ？ I'm so smart .
Look for it , A big man shared BV The no. api, Click send to boss page
I have a look at , Oh , still B The boss of the station , You don't talk about martial virtue , Teach others to do B standing （ But I like 🤪 ）
# according to BV Number acquisition cid https://api.bilibili.com/x/player/pagelist?bvid=(bvid, Take the beginning BV!) # according to BV Number and cid Get video playlist https://api.bilibili.com/x/player/playurl?cid=(cid)&qn=(qn)&bvid=(bvid, Take the beginning BV!) # according to BV Number and cid obtain aid https://api.bilibili.com/x/web-interface/view?cid=(cid)&bvid=(bvid, Take the beginning BV!)
Summarize the above api, So the idea is , Just have a hand , Follow the boss , That's the line. ！
First, according to BV The number is found cid, According to BV Number and cid obtain aid, According to aid Get the cover .
And the data in the crawling process is basically json data . among ：
cid Data in json Of ['data'][0]['cid'] in
aid Data in json Of ['data']['aid'] in
Cover picture Data in json Of ['data']['pic'] in
More detailed process , I wrote it in the comments of the code
# -*- coding: UTF-8 -*-
# @Time: 2021/8/17 20:12
# @Author: Stars in the distance
# @CSDN: https://blog.csdn.net/qq_44921056
import os
import json
import requests
import chardet
from fake_useragent import UserAgent
# Randomly generate request header
ua = UserAgent(verify_ssl=False, path='D:/Pycharm/fake_useragent.json')
# Random handover request header
def random_ua():
headers = {
"accept-encoding": "gzip", # gzip Compression coding It can increase the file transfer rate
"user-agent": ua.random
}
return headers
# Create folder
def path_creat():
_path = "D:/B Station cover /"
if not os.path.exists(_path):
os.mkdir(_path)
return _path
# The crawled page content is json Format processing
def get_text(url):
res = requests.get(url=url, headers=random_ua())
res.encoding = chardet.detect(res.content)['encoding'] # Uniform character encoding
res = res.text
data = json.loads(res) # json format
return data
# according to bv Number acquisition av Number
def get_aid(bv):
url_1 = 'https://api.bilibili.com/x/player/pagelist?bvid={}'.format(bv)
response = get_text(url_1)
cid = response['data'][0]['cid'] # obtain cid
url_2 = 'https://api.bilibili.com/x/web-interface/view?cid={}&bvid={}'.format(cid, bv)
response_2 = get_text(url_2)
aid = response_2['data']['aid'] # obtain aid
return aid
# according to av No. get the cover picture
def get_image(aid):
url_3 = 'https://api.bilibili.com/x/web-interface/view?aid={}'.format(aid)
response_3 = get_text(url_3)
image_url = response_3['data']['pic'] # Get the picture download connection
image = requests.get(url=image_url, headers=random_ua()).content # Get photo
return image
# Download the cover
def download(image, file_name):
with open(file_name, 'wb') as f:
f.write(image)
f.close()
def main():
k = 'Y'
while k == 'Y': # Cycle all the time according to the user's needs
path = path_creat() # Create save B Station cover folder
bv = input(" Please enter the name of the video bv Number ：")
image_name = input(" Please give the cover you want to download a favorite name ：")
aid = get_aid(bv)
image = get_image(aid)
file_name = path + '{}.jpg'.format(image_name)
download(image, file_name)
print(" Cover extraction completed ^_^")
k = input(" Press Y Key to continue extraction , Press Q sign out ：")
if __name__ == '__main__':
main()== Code can be directly copied to run ==, If it helps you , Remember == give the thumbs-up == Oh , It's also the greatest encouragement to the author , The shortcomings can be corrected in the comments section 、 communication .
BV1C5411P7qM Video of ：Online website ：https://bigjpg.com/zh
This can be used online , You can enlarge your picture online and do noise reduction . If you are interested, you can try it yourself , I think the effect is OK .
Reference article 1：python Crawling B Station cover
Reference article 2：bilibili new BV Number api
author ： Stars in the distance CSDN：https://blog.csdn.net/qq_44921056
This article is only for communication learning , Without the permission of the author , Prohibited reproduced , Let alone for other purposes , Offenders will investigate .
