如何使用BeautifulSoup提取HTML注释标签中的JSON数据？

Question

我想使用BeautifulSoup提取HTML注释标签中的json内容。

<script data_id ="dfsfre2323" data_key="23424sfsfsfdafd", type="application/json"><!--
{"employee": {"name":"sonoo", "salary":56000, "married":true}}--></script>]

输出应如下所示。

Name: sonoo
Salary: 56000
Married: True

我尝试了以下方法：

from bs4 import BeautifulSoup, Comment
import json
soup = BeautifulSoup(webpage, "html.parser")
data = soup.find("script", {"type":"application/json", data_id ="dfsfre2323" data_key="23424sfsfsfdafd"})                                                                                                       
comment = soup.find(text=lambda text:isinstance(data, Comment))

我在评论中没有得到任何东西。

提前感谢任何帮助！

- Ashok Kumar Jayaraman

Answer 1

<script>标签内的内容不会被BeautifulSoup解析，因此您的.find(text=...)将找不到任何内容。在使用.find()之前，将脚本字符串转换为BeautifulSoup：

import json
from bs4 import BeautifulSoup, Comment


txt = '''
<script data_id ="dfsfre2323" data_key="23424sfsfsfdafd" type="application/json"><!--
    {"employee": {"name":"sonoo", "salary":56000, "married":true}}
--></script>'''

soup = BeautifulSoup(txt, "html.parser")
data = soup.find("script", {"type":"application/json", 'data_id':"dfsfre2323", 'data_key':"23424sfsfsfdafd"})
comment = BeautifulSoup(data.string, "html.parser").find(text=lambda t: isinstance(t, Comment))

data = json.loads(comment)

print(json.dumps(data, indent=4))

输出：

{
    "employee": {
        "name": "sonoo",
        "salary": 56000,
        "married": true
    }
}

- Andrej Kesely