如何使用Beautiful Soup在< script>中提取字符串标签? [英] How to use Beautiful Soup to extract string in <script> tag?
问题描述
在给定的.html页面中，我有一个脚本标签，如下所示:
In a given .html page, I have a script tag like so:
<script>jQuery(window).load(function () {
setTimeout(function(){
jQuery("input[name=Email]").val("name@email.com");
}, 1000);
});</script>
如何使用Beautiful Soup提取电子邮件地址?
How can I use Beautiful Soup to extract the email address?
推荐答案
要在 @Bob的答案中添加更多内容，并假设您还需要在HTML中找到script标签，该标签可能还有其他script标签.
To add a bit more to the @Bob's answer and assuming you need to also locate the script tag in the HTML which may have other script tags.
The idea is to define a regular expression that would be used for both locating the element with BeautifulSoup and extracting the email value:
import re
from bs4 import BeautifulSoup
data = """
<body>
<script>jQuery(window).load(function () {
setTimeout(function(){
jQuery("input[name=Email]").val("name@email.com");
}, 1000);
});</script>
</body>
"""
pattern = re.compile(r'\.val\("([^@]+@[^@]+\.[^@]+)"\);', re.MULTILINE | re.DOTALL)
soup = BeautifulSoup(data, "html.parser")
script = soup.find("script", text=pattern)
if script:
match = pattern.search(script.text)
if match:
email = match.group(1)
print(email)
打印:name@email.com.
在这里，我们使用电子邮件地址的简单正则表达式，但是我们可以走得更远并且更严格但是我怀疑这个问题在实际中是否必要.
Here we are using a simple regular expression for the email address, but we can go further and be more strict about it but I doubt that would be practically necessary for this problem.
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