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Python实现抓取CSDN热门文章列表

2016-08-24

1、使用工具: Python3 5 BeautifulSoup 2、抓取网站: csdn热门文章列表 http: blog csdn net hot html 3、实现代码: __author__ = & 039;Administrator & 039; import urllib request import re fro

1、使用工具:
Python3.5
BeautifulSoup
2、抓取网站:
csdn热门文章列表 http://blog.csdn.net/hot.html
3、实现代码:

__author__ = 'Administrator'
import urllib.request
import re
from bs4 import BeautifulSoup


########################################################
#
# 抓取csdn首页文章http://blog.csdn.net/?&page=1
#
#
#
########################################################
class CsdnUtils(object):
    def __init__(self):
        user_agent = 'Mozilla/5.0 (Windows NT 6.1; WOW64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/50.0.2661.102 Safari/537.36'
        self.headers = {'Cache-Control': 'max-age=0',
                        'Connection': 'keep-alive',
                        'Accept': 'text/html,application/xhtml+xml,application/xml;q=0.9,image/webp,*/*;q=0.8',
                        'User-Agent': user_agent,
        }

    def getPage(self, url=None):
        request = urllib.request.Request(url, headers=self.headers)
        response = urllib.request.urlopen(request)
        soup = BeautifulSoup(response.read(), "html.parser")
        #print(soup.prettify())
        return soup

    def parsePage(self, url=None, page=None):
        soup = self.getPage(url)
        itemBlog = soup.find_all('div', 'blog_list')
        cnArticle = CsdnUtils
        print("========================第", page, "页======================================")
        for i, itemSingle in enumerate(itemBlog):
            cnArticle.num = i
            cnArticle.author = itemSingle.find('a', 'user_name').string
            cnArticle.postTime = itemSingle.find('span', 'time').string
            cnArticle.articleView = itemSingle.find('a', 'view').string
            if itemSingle.find('h1').find('a').has_attr('class'):
                cnArticle.type = itemSingle.find('h1').find('a', 'category').string
            else:
                cnArticle.type = "None"
            cnArticle.title = itemSingle.find('h1').find('a', attrs={'name': True}).string
            cnArticle.url = itemSingle.find('h1').find('a', attrs={'name': True}).get("href")
            print("数据:", cnArticle.num + 1, '\t', cnArticle.author, '\t', cnArticle.postTime, '\t',
                  cnArticle.articleView, '\t', cnArticle.type, '\t', cnArticle.title, '\t', cnArticle.url)


#######     执行入口    ########
if __name__ == "__main__":

    #要抓取的网页地址'http://blog.csdn.net/?&page={}'.format(i+1),i+1)
    url = "http://blog.csdn.net/hot.html"

    cnblog = CsdnUtils()
    for i in range(0, 5):
        cnblog.parsePage(url, i + 1)

4、执行结果:
这里写图片描述

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