本文实例讲述了Python爬虫实现使用beautifulSoup4爬取名言网功能。分享给大家供大家参考，具体如下：

爬取名言网top10标签对应的名言，并存储到mysql中，字段(名言，作者，标签)

#! /usr/bin/python3

# -*- coding:utf-8 -*-

from urllib.request import urlopen as open

from bs4 import BeautifulSoup

import re

import pymysql

def find_top_ten(url):

response = open(url)

bs = BeautifulSoup(response,'html.parser')

tags = bs.select('span.tag-item a')

top_ten_href = [tag.get('href') for tag in tags]

top_ten_tag = [tag.text for tag in tags]

# print(top_ten_href)

# print(top_ten_tag)

return top_ten_href

def insert_into_mysql(records):

con = pymysql.connect(host='localhost',user='root',password='root',database='quotes',charset='utf8',port=3306)

cursor = con.cursor()

sql = "insert into quotes(content,author,tags) values(%s,%s,%s)"

for record in records:

cursor.execute(sql, record)

con.commit()

cursor.close()

con.close()

# http://quotes.toscrape.com/tag/love/

#要获取对应标签中所有的名言 所以这里要考虑分页的情况

#经过在网页上查看知道分页查询的url

#http://quotes.toscrape.com/tag/love/page/1/

#判断到那一页没有数据 div.container div.row [1]

def find_link_content(link):

page = 1

while True:

new_link = "http://quotes.toscrape.com" + link + "page/"

# print(new_link)

new_link = new_link + str(page)

print(new_link)

sub_bs = open(new_link)

sub_bs = BeautifulSoup(sub_bs,'html.parser')

quotes = sub_bs.select('div.row div.col-md-8 span.text')

# 如果没有数据就退出

if len(quotes) == 0:

break

#名言

quotes = [quote.text.strip('“”') for quote in quotes]

#作者

authors = sub_bs.select('small.author')

authors = [author.text for author in authors]

# 标签

tags_list = sub_bs.select('meta.keywords')

tags_list = [tags.get('content') for tags in tags_list]

# print(authors)

# print(quotes)

#print(tags_list)

record_list = []

for i in range(len(quotes)):

tags = tags_list[i]

tags = tags.replace(',','，')

print(tags)

record = [quotes[i],authors[i],tags]

record_list.append(record)

insert_into_mysql(record_list)

page += 1

#

def main():

url = "http://quotes.toscrape.com/"

parent_link = find_top_ten(url)

for link in parent_link:

print(link)

find_link_content(link)

if __name__ == '__main__':

main()

希望本文所述对大家Python程序设计有所帮助。