Python 使用Beautifulsoup为URL抓取页面
我可以把这一页刮到标题上,没问题。URL是另一回事。它们是附加在基本URL末尾的片段-我理解。。。 我需要什么来拉取相关的url以存储格式-base_url.scraped_fragmentPython 使用Beautifulsoup为URL抓取页面,python,web-scraping,beautifulsoup,Python,Web Scraping,Beautifulsoup,我可以把这一页刮到标题上,没问题。URL是另一回事。它们是附加在基本URL末尾的片段-我理解。。。 我需要什么来拉取相关的url以存储格式-base_url.scraped_fragment from urllib2 import urlopen import requests from bs4 import BeautifulSoup import csv import MySQLdb import re html = urlopen("http://advances.sciencemag
from urllib2 import urlopen
import requests
from bs4 import BeautifulSoup
import csv
import MySQLdb
import re
html = urlopen("http://advances.sciencemag.org/")
soup = BeautifulSoup(html.read().decode('utf-8'),"lxml")
#links = soup.findAll("a","href")
headlines = soup.findAll("div", "highwire-cite-title media__headline__title")
for headline in headlines:
text = (headline.get_text())
print text
首先,类名之间应该有一个空格:
highwire-cite-title media__headline__title
HERE^
无论如何,由于您需要链接,您应该定位a
元素,并使用urljoin()
创建绝对URL:
from urlparse import urljoin
import requests
from bs4 import BeautifulSoup
base_url = "http://advances.sciencemag.org"
response = requests.get(base_url)
soup = BeautifulSoup(response.content, "lxml")
headlines = soup.find_all(class_="highwire-cite-linked-title")
for headline in headlines:
print(urljoin(base_url, headline["href"]))
印刷品:
http://advances.sciencemag.org/content/2/4/e1600069
http://advances.sciencemag.org/content/2/4/e1501914
http://advances.sciencemag.org/content/2/4/e1501737
...
http://advances.sciencemag.org/content/2/2
http://advances.sciencemag.org/content/2/1
首先,类名之间应该有一个空格:
highwire-cite-title media__headline__title
HERE^
无论如何,由于您需要链接,您应该定位a
元素,并使用urljoin()
创建绝对URL:
from urlparse import urljoin
import requests
from bs4 import BeautifulSoup
base_url = "http://advances.sciencemag.org"
response = requests.get(base_url)
soup = BeautifulSoup(response.content, "lxml")
headlines = soup.find_all(class_="highwire-cite-linked-title")
for headline in headlines:
print(urljoin(base_url, headline["href"]))
印刷品:
http://advances.sciencemag.org/content/2/4/e1600069
http://advances.sciencemag.org/content/2/4/e1501914
http://advances.sciencemag.org/content/2/4/e1501737
...
http://advances.sciencemag.org/content/2/2
http://advances.sciencemag.org/content/2/1
很好用!接下来,如果我想让URL与标题配对,例如:范德华金属半导体结:弱费米能级钉扎能够有效调谐肖特基势垒,那么该语句看起来如何?@citramaillo,您可以从
标题中获得。get_text()
,查看它。谢谢,很好用!接下来,如果我想让URL与标题配对,例如:范德华金属半导体结:弱费米能级钉扎能够有效调谐肖特基势垒,那么该语句看起来如何?@citramaillo,您可以从标题中获得。get_text()
,查看它。谢谢