Question

我正在尝试访问

中的元素

<script type="text/javascript">ReportPopper("http://asd.asd.asd/ReportOutput/asd-asd-41cc-asd-asd.xls");<script>

使用beautifulsoup，很遗憾，我不确定如何访问ReportPopper部件并将其分配给使用Python

的变量。

对不起，如果已经回答。我试过在find（'ReportPopper'）中添加ReportPopper并给我一个none元素。

import requests
import io
import os
from bs4 import BeautifulSoup


participation = requests.post(url=report_post_url,data=request_post_report_form,headers=report_post_headers,stream=True)
print(participation)


soup = BeautifulSoup(participation.text, 'html.parser')

for n in soup.find_all('script'):
    javascript = n['ReportPopper']
    print(javascript)

我希望得到的最终结果是：

javascript = "http://asd.asd.asd/ReportOutput/asd-asd-41cc-asd-asd.xls"

作为我的输出：

Traceback (most recent call last):
  File "c:\Users\John asd\Documents\GitHub\asd.net\testing.py", line 184, in <module>
    javascript = n['ReportPopper']
  File "C:\Users\John asd\asd\Local\Programs\Python\Python37\lib\site-packages\bs4\element.py", line 1016, in __getitem__
    return self.attrs[key]
KeyError: 'ReportPopper'

Answer 1

re.compile()返回一个regular expression object，这意味着h是一个正则表达式对象。

regex对象具有自己的match方法，带有可选的pos和endpos参数：

regex.match(string[, pos[, endpos]])

from bs4 import BeautifulSoup
import  re

html = """<script>ReportPopper("http://asd.asd.asd/ReportOutput/asd-asd-41cc-asd-asd.xls");</script>"""

soup = BeautifulSoup(html, 'lxml')
script = soup.find_all("script")

pattern = re.compile('ReportPopper(.*);')

for i in script:
    strObj = i.text
    match = pattern.search(strObj)
    if match:
        print(strObj.split("ReportPopper(")[1][:-2])

O / P：

"http://asd.asd.asd/ReportOutput/asd-asd-41cc-asd-asd.xls"

Answer 2

对于bs4 4.7.1，您可以使用：contains响应中是否存在该字符串

from bs4 import BeautifulSoup as bs
# r = requests.get(url)
# html - r.content
html = '<script type="text/javascript">ReportPopper("http://asd.asd.asd/ReportOutput/asd-asd-41cc-asd-asd.xls");<script>'
soup = bs(html, 'lxml')
s = soup.select_one('script:contains(ReportPopper)').text
url = s.split('"')[1]
print(url)

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