<script>中如何使用Beautiful Soup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，我有一个像这样的脚本标签:
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
在 @Bob 的回答中添加更多内容 并假设您还需要在 HTML 中找到 script 标记，该标记可能具有其他 script 标记.
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.
这个想法是定义一个正则表达式，用于 使用 BeautifulSoup 定位元素并提取 email 值:
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.
这里我们使用简单的电子邮件地址正则表达式，但我们可以更进一步，更严格地它但我怀疑这对于这个问题实际上是否必要.
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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