BeautifulSoup实现博文简介与过滤恶意标签（xxs攻击）

一、BeautifulSoup模块

二、博文简介

三、过滤恶意标签

 

 

一、BeautifulSoup模块

pip install bs4  # 安装bs4

 

from bs4 import BeautifulSoup  # 导入BeautifulSoup

 

二、博文简介

from bs4 import BeautifulSoup

 

content = '<a href="http://example.com/">I linked to <i>example.com</i></a>'

soup = BeautifulSoup(content, 'html.parser')

overview = soup.text[0:9]

print(overview)

 

三、过滤恶意标签

from bs4 import BeautifulSoup

 

content = '<a href="http://example.com/">I linked to <i>example.com</i></a><div><img src=""></img>image</div><a>link</a><script>alert(123)</script>'

soup = BeautifulSoup(content, 'html.parser')

print(soup)  # 这里带有script标签的脚本

 

for tag in soup.find_all():

    if tag.name in ['script', 'link']:

        tag.decompose()

 

print(soup)  # 这里已经把带有script标签的脚本去掉了