python基于selenium爬取斗鱼弹幕_Python

针对弹幕的爬取我们如果只需要获取看到的网页里面的而数据，使用selenium就能实现，对于直播平台来说，往往有第三方平台api让你获取数据（可以获取发弹幕，发弹幕者的名字礼物等等，这需要客户端向弹幕服务器发送登录请求，心跳信息的发送等等）只获取弹幕信息储存到txt文件中，上代码，上图片

代码如下：

				?

									import time

									from selenium import webdriver

									chrome_options = webdriver.chromeoptions()

									# 使用headless无界面浏览器模式

									# chrome_options.add_argument('--headless')

									# chrome_options.add_argument('--disable-gpu')

									prefs = {"profile.managed_default_content_settings.images": 2}

									chrome_options.add_experimental_option("prefs", prefs)

									browser = webdriver.chrome(chrome_options=chrome_options)

									url = 'https://www.douyu.com/'

									def getdanmu(homeid):

									  homehref = url+str(homeid)

									  browser.get(homehref)

									  while 1: 

									    time.sleep(2)

									    try:

									      for i in browser.find_elements_by_xpath('.//div[@class=" danmu-6e95c1"]/div/div'):

									        if len(i.text) > 0:

									          try:

									            print(i.text)

									          except:

									            pass

									          savedanmu(i.text)

									        else:

									          continue

									    except:

									      time.sleep(2)

									      for i in browser.find_elements_by_xpath('.//div[@class=" danmu-6e95c1"]/div/div'):

									        if len(i.text) > 0:

									          try:

									            print(i.text)

									          except:

									            pass

									          savedanmu(i.text)

									        else:

									          continue

									def savedanmu(danmu):

									  with open('danmu.txt', 'a+', encoding='utf-8')as f:

									    f.write(danmu+'\n')

									if __name__ == '__main__':

									  num = input('请输入需要查询的房间号：')

									  getdanmu(num)