使用 BeautifulSoup 在 CData 中刮取变量

Question

我有一个网页，其中包含我想在该网页的 CData 部分中抓取的以下数据。

<script type="text/javascript">//<![CDATA[ 

car.app =


{"lat":26.175625,"lon":-80.13808,"zoom":"13","yellow":"\/img\/icons\/yellow.png","cars":[{"CAR_ID":"715383","ID":"538070521","UID":"0","CARNAME":"MAZDA","TYPE_COLOR":"0","LAT":"26.13437","LON":"-80.11906","COURSE":"100","SPEED":"0","LENGTH":"12","STATE":"OH"}] 

... 
... 
//]]></script>

我想在 CData 中获取 car.app 变量，但我不确定如何在 python 中解析它。

import bs4 as bs

import urllib.request

class AppURLopener(urllib.request.FancyURLopener):
    version = "Mozilla/5.0"

opener = AppURLopener()
response = opener.open(url)

c = response.read()
soup = bs.BeautifulSoup(c, "html.parser")
print(soup)

Answer 1

我认为解决您的问题的唯一方法是使用 BeautifulSoup 解析该特定标签，然后进行一些字符串操作以实现您的目标。

代码：

import bs4 as bs
import urllib.request

c = '''
<script type="text/javascript">//<![CDATA[ 

car.app =


{"lat":26.175625,"lon":-80.13808,"zoom":"13","yellow":"\/img\/icons\/yellow.png","cars":[{"CAR_ID":"715383","ID":"538070521","UID":"0","CARNAME":"MAZDA","TYPE_COLOR":"0","LAT":"26.13437","LON":"-80.11906","COURSE":"100","SPEED":"0","LENGTH":"12","STATE":"OH"}] 

... 
... 
//]]></script>
'''
soup = bs.BeautifulSoup(c, "html.parser")
script = soup.find('script')
print(str(script.text).split('car.app =')[1].split('...')[0].replace('\n', ''))

输出：

{"lat":26.175625,"lon":-80.13808,"zoom":"13","yellow":"\/img\/icons\/yellow.png","cars":[{"CAR_ID":"715383","ID":"538070521","UID":"0","CARNAME":"MAZDA","TYPE_COLOR":"0","LAT":"26.13437","LON":"-80.11906","COURSE":"100","SPEED":"0","LENGTH":"12","STATE":"OH"}]