Python翻页爬取B站视频_69re小视频

记录学习笔记之翻页爬取B站视频

import re
import time
import requests
from lxml import etree
from moviepy.editor import *
from lxml import etree
 
 
if __name__ == '__main__':
    data_ = input("请输入你要搜索的内容:")
 
    pages = int(input("请输入你要爬取的页数:"))
 
    # 定义一个空列表，用于保存爬取到的每页20个视频url
    list_ = []
 
    for page in range(pages):  # 5 0,1,2,3,4
        # 列表页的url
        url_ = f"https://search.bilibili.com/all?keyword={data_}&page={page + 1}"
 
        # 用户代理的设置
        headers__ = {
            "cookie": "_uuid=8E9986D8-D2B1-AE0F-9F4E-057B59DDE7B113399infoc; buvid3=B715F603-8F69-491D-9E9D-C6AD5F30E32C167628infoc; CURRENT_BLACKGAP=1; CURRENT_FNVAL=80; CURRENT_QUALITY=0; rpdid=|(kmJYYJJm~~0J'uYk~kmukuY; blackside_state=1; PVID=2; bsource=search_baidu; arrange=matrix; fingerprint=a19d6bac6f65a05c1eda15587959c900; buvid_fp=B715F603-8F69-491D-9E9D-C6AD5F30E32C167628infoc; buvid_fp_plain=88B631D5-026B-4E30-8AB4-32F3D649846518783infoc; sid=6ehvc2cf",
            'User-Agent': 'Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/86.0.4240.111 Safari/537.36',
        }
 
        response = requests.get(url_, headers=headers__)
 
        str_data = response.text
 
        # 保存视频主页的url,就代表着下载视频
        # 提取出20个视频的详情页url
        html_obj = etree.HTML(str_data)
        url_list = html_obj.xpath('//a[@class="img-anchor"]/@href')
 
        for url_ in url_list:
            url_ = "https:" + url_
 
            list_.append(url_)
 
        time.sleep(2)
 
    # print(len(list_))
    list2 = list(set(list_))
    print(len(list2))
print(list2)
for i in range (len(list2)):
    url = list2[i]
    # headers_ = {
 
    headers__ = {
        'User-Agent': 'Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/86.0.4240.111 Safari/537.36',
        'Cookie': "INTVER=1; _uuid=09E58359-9210-BAEE-1A60-4EE46A2B82C655513infoc; sid=5ytmp0pi; LIVE_BUVID=AUTO6515760552512495; stardustvideo=1; laboratory=1-1; rpdid=|(umuum~uku|0J'ul~Y|llkl); buvid3=684E90B9-B796-4512-AE61-CED715ED0D2B53931infoc; stardustpgcv=0606; finger=158939783; DedeUserID=246639322; DedeUserID__ckMd5=0de51babcf36bfe1; SESSDATA=0453e7c3%2C1613286482%2C848b7*81; bili_jct=05a501d5099630a42cb271cebdbc3470; blackside_state=1; CURRENT_FNVAL=80; CURRENT_QUALITY=80; bsource=search_baidu; PVID=4"
    }
 
    # # 发送请求,得到响应对象
    response_ = requests.get(url, headers=headers__)
 
    str_data = response_.text  # 视频主页的html代码,类型是字符串
 
    # 使用xpath解析html代码,,得到想要的url
    html_obj = etree.HTML(str_data)  # 转换格式类型
 
    # 获取视频的名称
    res_ = html_obj.xpath('//title/text()')[0]  #
 
    # 视频名称的获取
    title_ = re.findall(r'(.*?)_哔哩哔哩', res_)[0]
    # 影响视频合成的特殊字符的处理
    title_ = title_.replace('/', '')
    title_ = title_.replace('-', '')
    title_ = title_.replace('|', '')
    title_ = title_.replace(' ', '')
    title_ = title_.replace('&', '')
 
    # 使用xpath语法获取数据,取到数据为列表,索引[0]取值取出里面的字符串,即包含视频音频文件的url字符串
    url_list_str = html_obj.xpath('//script[contains(text(),"window.__playinfo__")]/text()')[0]
 
    # 纯视频的url
    video_url = re.findall(r'"video":\[{"id":\d+,"baseUrl":"(.*?)"', url_list_str)[0]
 
    # 纯音频的url
    audio_url = re.findall(r'"audio":\[{"id":\d+,"baseUrl":"(.*?)"', url_list_str)[0]
 
    # 设置跳转字段的headers
    headers_ = {
        'User-Agent': 'Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/86.0.4240.111 Safari/537.36',
        'Referer': url_
    }
 
    # 获取纯视频的数据
    response_video = requests.get(video_url, headers=headers_, stream=True)
    bytes_video = response_video.content
    # 获取纯音频的数据
    response_audio = requests.get(audio_url, headers=headers_, stream=True)
    bytes_audio = response_audio.content
 
    # 获取文件大小, 单位为KB
    video_size = int(int(response_video.headers['content-length']) / 1024)
    audio_size = int(int(response_audio.headers['content-length']) / 1024)
 
    # 保存纯视频的文件
    title_1 = title_ + '!'  # 名称进行修改,避免重名
    with open(f'{title_1}.mp4', 'wb') as f:
        f.write(bytes_video)
        print(f'{title_1}>>>纯视频文件下载完毕...,大小为:{video_size}KB, {int(video_size/1024)}MB')
 
    with open(f'{title_1}.mp3', 'wb') as f:
        f.write(bytes_audio)
        print(f'{title_1}>>>纯音频文件下载完毕...,大小为:{audio_size}KB, {int(audio_size/1024)}MB')
 
    ffmpeg_tools.ffmpeg_merge_video_audio(f'{title_1}.mp4', f'{title_1}.mp3', f'{title_}.mp4')
 
    # 显示合成文件的大小
    res_ = int(os.stat(f'{title_}.mp4').st_size / 1024)
    print(f'{title_}>>>视频合成成功...,大小为{res_}KB, {int(res_/1024)}MB......')
 
    # 移除纯视频文件,
    os.remove(f'{title_1}.mp4')
    # 移除纯音频文件,
    os.remove(f'{title_1}.mp3')
 
    # 手动降低请求频率,,避免被反爬
    # time.sleep(3)
    # 隔开每一个视频的信息
    print('*' * 100)
 
print('视频全部抓取完毕......')