我正在编写一个python脚本,它将在从网页解析后提取脚本位置。 可以说有两种情况:
<script type="text/javascript" src="http://example.com/something.js"></script>
和
<script>some JS</script>
我能够从第二个场景中获取JS,即在标签内编写JS时。
但是有什么办法,我可以从第一个场景中获取src的值(即在脚本中提取src标签的所有值,例如http://example.com/something.js)
这是我的代码
#!/usr/bin/python
import requests
from bs4 import BeautifulSoup
r = requests.get("http://rediff.com/")
data = r.text
soup = BeautifulSoup(data)
for n in soup.find_all('script'):
print n
输出:有些JS
答案 0 :(得分:22)
仅当它们存在时才会获得所有src
值。否则它会跳过<script>
标记
from bs4 import BeautifulSoup
import urllib2
url="http://rediff.com/"
page=urllib2.urlopen(url)
soup = BeautifulSoup(page.read())
sources=soup.findAll('script',{"src":True})
for source in sources:
print source['src']
我得到了两个src
值作为结果
http://imworld.rediff.com/worldrediff/js_2_5/ws-global_hm_1.js
http://im.rediff.com/uim/common/realmedia_banner_1_5.js
我想这就是你想要的。希望这很有用。
答案 1 :(得分:5)
从脚本节点获取'src'。
import requests
from bs4 import BeautifulSoup
r = requests.get("http://rediff.com/")
data = r.text
soup = BeautifulSoup(data)
for n in soup.find_all('script'):
print "src:", n.get('src') <====
答案 2 :(得分:1)
这应该可行,您只需过滤以查找所有脚本标记,然后确定它们是否具有'src'属性。如果他们这样做,那么javascript的URL包含在src属性中,否则我们假设javascript在标记中
#!/usr/bin/python
import requests
from bs4 import BeautifulSoup
# Test HTML which has both cases
html = '<script type="text/javascript" src="http://example.com/something.js">'
html += '</script> <script>some JS</script>'
soup = BeautifulSoup(html)
# Find all script tags
for n in soup.find_all('script'):
# Check if the src attribute exists, and if it does grab the source URL
if 'src' in n.attrs:
javascript = n['src']
# Otherwise assume that the javascript is contained within the tags
else:
javascript = n.text
print javascript
这个输出是
http://example.com/something.js
some JS