Python爬取哔哩哔哩视频信息

爬取哔哩哔哩视频信息

步骤：因为哔哩哔哩时动态网页，所以需要爬取精确的url之后，在进行信息的爬取，将信息存放到csv文件中

1. 爬取更准确的url

# 提取正确的url
def professional_link(url,type):
    headers = {
        "User-Agent": "Mozilla/5.0 (Windows NT 10.0; WOW64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/70.0.3538.25 Safari/537.36 Core/1.70.3754.400 QQBrowser/10.5.4020.400"
    }
    response = requests.get(url, headers=headers).content.decode('utf-8')
    # 利用正则提取动态网页的url部分内容
    links = re.findall(r'
.*?.*?.*?
',response, re.DOTALL)
    for link in links:
        links_new = re.sub('\?', '', link)
        links_news = 'https://www.bilibili.com/video/' + links_new
        professional(links_new, headers,type)

2. 通过url提取视频信息，包括题目，点赞量，硬币数，作者id等

# 提取视频信息，包括标题，点赞量，赞等
def professional(link, headers,type):
    url = "https://api.bilibili.com/x/web-interface/view?&bvid="+link
    response = requests.get(url, headers).content.decode('utf-8')
    content = json.loads(response)
    # 利用json提取视频信息
    title = content['data']['title']
    author = content['data']['owner']['name']
    info = content['data']['desc']
    info = re.sub(r'\n', '', info)
    aid = 'av' + str(content['data']['stat']['aid'])
    view = content['data']['stat']['view']
    coin = content['data']['stat']['coin']
    share = content['data']['stat']['share']
    like = content['data']['stat']['like']

3. 将信息存放到列表中，方便存入csv

# 将信息存放到列表中
    bilibilis = list()
    values = {
        'title': title,
        'author': author,
        'info': info,
        'aid': aid,
        'view': view,
        'coin': coin,
        'share': share,
        'like': like
    }
    bilibilis.append(values)
    print(bilibilis)
    # 调用csv，将信息放入csv文件中
    bilibili_excel(type, bilibilis)

4. 将视频信息存放到csv文件中

# 将视频信息放入csv文件中
def bilibili_excel(type, bilibilis):
    # 编辑csv文件标题
    H = "bilibili" + type + '信息.csv'
    # 编辑表头信息
    headers = ['title', 'author', 'info', 'aid', 'view', 'coin', 'share', 'like']
    # 存放到csv文件中
    with open(H, "a+", encoding="utf-8-sig", newline="")as f:
        writer = csv.DictWriter(f,headers)
        writer.writeheader()
        writer.writerows(bilibilis)

5. 可以通过多线程使爬取速度更快

# 多线程爬取简历
def jianli():
    for i in range(1, 40):
        url = 'https://search.bilibili.com/all?keyword=简历&page=%d' % i
        professional_link(url, '简历')

# 多线程爬取简历模板
def jianlimoban():
    for i in range(1, 40):
        url = 'https://search.bilibili.com/all?keyword=简历模板&page=%d' % i
        professional_link(url, '简历模板')

# 多线程爬取面试
def mianshi():
    for i in range(1, 40):
        url = 'https://search.bilibili.com/all?keyword=面试&page=%d' % i
        professional_link(url, '面试')

# 多线程爬取实习
def shixi():
    for i in range(1, 40):
        url = 'https://search.bilibili.com/all?keyword=实习&page=%d' % i
        professional_link(url, '实习')

# 多线程爬取找工作
def zhaogongzuo():
    for i in range(1, 40):
        url = 'https://search.bilibili.com/all?keyword=找工作&page=%d' % i
        professional_link(url, '找工作')

# 多线程爬取笔试
def bishi():
    for i in range(1, 40):
        url = 'https://search.bilibili.com/all?keyword=笔试&page=%d' % i
        professional_link(url, '笔试')

# 多线程爬取职场
def zhichang():
    for i in range(1, 40):
        url = 'https://search.bilibili.com/all?keyword=职场&page=%d' % i
        professional_link(url, '职场')

# 多线程
def main():
    t1 = threading.Thread(target=jianli)
    t2 = threading.Thread(target=jianlimoban)
    t3 = threading.Thread(target=mianshi)
    t4 = threading.Thread(target=shixi)
    t5 = threading.Thread(target=zhaogongzuo)
    t6 = threading.Thread(target=bishi)
    t7 = threading.Thread(target=zhichang)

    t1.start()
    t2.start()
    t3.start()
    t4.start()
    t5.start()
    t6.start()
    t7.start()

注：哔哩哔哩反爬很强，所以经常会被禁止访问，建议使用IP代理，效果更好。