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python3爬取数据至mysql的方法

时间:2018-06-30 15:13:18 编辑:猪哥 来源:转载

本文实例为大家分享了python3爬取数据至mysql的具体代码,供大家参考,具体内容如下

直接贴代码

#!/usr/local/bin/python3.5 
# -*- coding:UTF-8 -*- 
from urllib.request import urlopen 
from bs4 import BeautifulSoup 
import re 
import datetime 
import random 
import pymysql 
 
connect = pymysql.connect(host='192.168.10.142', unix_socket='/tmp/mysql.sock', user='root', passwd='1234', db='scraping', charset='utf8') 
cursor = connect.cursor() 
cursor.execute('USE scraping') 
 
random.seed(datetime.datetime.now()) 
 
 
def store(title, content): 
 
  execute = cursor.execute("select * from pages WHERE `title` = %s", title) 
  if execute <= 0: 
    cursor.execute("insert into pages(`title`, `content`) VALUES(%s, %s)", (title, content)) 
    cursor.connection.commit() 
  else: 
    print('This content is already exist.') 
 
 
def get_links(acticle_url): 
  html = urlopen('http://en.wikipedia.org' + acticle_url) 
  soup = BeautifulSoup(html, 'html.parser') 
  title = soup.h1.get_text() 
  content = soup.find('div', {'id': 'mw-content-text'}).find('p').get_text() 
  store(title, content) 
  return soup.find('div', {'id': 'bodyContent'}).findAll('a', href=re.compile("^(/wiki/)(.)*$")) 
 
links = get_links('') 
 
try: 
  while len(links) > 0: 
    newActicle = links[random.randint(0, len(links) - 1)].attrs['href'] 
    links = get_links(newActicle) 
    print(links) 
finally: 
  cursor.close() 
  connect.close() 

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