(编辑:jimmy 日期: 2024/11/12 浏览:2)
今天闲着没事,用selenium抓取视频保存到本地,只爬取了第一页,只要小于等于5分钟的视频。。。
为什么不用requests,没有为什么,就因为有些网站正则和xpath都提取不出来想要的东西,要么就是接口出来的数据加密,要么就因为真正的视频url规律难找!
selenium几行代码轻轻松松就搞定!
安装selenium库,设置无界面模式
代码如下:
from selenium import webdriver from selenium.webdriver.chrome.options import Options import requests #设置无界面模式 chrome_options = Options() chrome_options.add_argument('--headless') chrome_options.add_argument('--disable-gpu') class VideoCrawl(object): video_box=[]#收集video真正的url def __init__(self,url): self.driver=webdriver.Chrome(executable_path=r"C:\Program Files\python\Lib\site-packages\selenium\webdriver\chrome\chromedriver.exe",options=chrome_options)#设置无界面模式 self.driver.get(url) #程序运行完毕,析构函数关闭selenium def __del__(self): print("爬取结束。。。。。",len(VideoCrawl.video_box),VideoCrawl.video_box) self.driver.close() def run(self): self.get_detail_info() #获取列表页所有详情页的url def get_detail_info(self): detail_info = self.driver.find_elements_by_xpath('//a[@class="video-wrap statpid"]') detail_url=[] for i in detail_info: detail_url.append(i.get_attribute('href'))#获取视频页url video_playtime_list=self.driver.find_elements_by_xpath('//span[@class="video-duration"]') video_playtime_list=[i.text for i in video_playtime_list] for res in zip(detail_url,video_playtime_list): playtime=res[1].split(":")[0] # print("playtime--------",playtime) if int(res[1].split(":")[0])<=5:#播放时间小于5分钟的要 # print(res[0],"解析的url",playtime) self.parse_video(res[0],res[1]) else: pass #解析详情页 def parse_video(self,url,t): self.driver.get(url) videoobj = self.driver.find_elements_by_xpath('//video') video_url=videoobj[0].get_attribute('src') title=self.driver.find_elements_by_xpath('//h1[@class="video-title"]')[0].text print('video_url--------',video_url,title,t) #保存video到本地 self.save_video(video_url,title,t) #类变量统计video_url VideoCrawl.video_box.append(video_url) #保存,请求video_url,二进制保存为mp4 def save_video(self,url,title,t): filename="video"+title+"-"+t.replace(":","")+".mp4" video=requests.get(url).content with open(filename,"wb") as file: file.write(video) print(f"{filename}写入文件完毕") if __name__ == '__main__': crawl=VideoCrawl('https://v.huya.com/cat/7') crawl.run()
运行结果如下:
"C:\Program Files\python\python.exe" C:/Users/Administrator.SC-201903160419/Desktop/note/exer/myapp.py video_url-------- https://huya-w10.huya.com/2005/265917310/1300/d973823b0f437c9d78fc40b9691fdb54.mp4 【轩子小剧场】最意外的自行车 04:23 video【轩子小剧场】最意外的自行车-0423.mp4写入文件完毕 video_url-------- https://huya-w10.huya.com/2006/267302224/1300/f8a363ec243e4adb2857491f695bc118.mp4 轩子巨2兔:轩子教你演戏 05:06 video轩子巨2兔:轩子教你演戏-0506.mp4写入文件完毕 video_url-------- https://huya-w6.huya.com/2005/264805062/1300/582b726b05db31fc12a1e5557011a6bf.mp4 【麦秀彩儿】跳个舞吧 05:58 video【麦秀彩儿】跳个舞吧-0558.mp4写入文件完毕 video_url-------- https://huya-w10.huya.com/2005/264956230/1300/97fa603f7b174ec30c19013f894bd108.mp4 轩子小剧场:你的女仆请签收 01:18 Process finished with exit code -1
都可以正常播放。。。
切记:自己娱乐下练练手删了即可,千万不要用于商业用途哦!
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