mirror of https://github.com/injetlee/Python.git
lagou.py
injetlee
parent
8091eefc1e
commit
2520ad9143
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# 代码详细说明请看文章
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import requests
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import os
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import time
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import threading
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from bs4 import BeautifulSoup
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def download_page(url):
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'''
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用于下载页面
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'''
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headers = {"User-Agent": "Mozilla/5.0 (Windows NT 10.0; Win64; x64; rv:61.0) Gecko/20100101 Firefox/61.0"}
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r = requests.get(url, headers=headers)
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r.encoding = 'gb2312'
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return r.text
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def get_pic_list(html):
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'''
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获取每个页面的套图列表,之后循环调用get_pic函数获取图片
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'''
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soup = BeautifulSoup(html, 'html.parser')
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pic_list = soup.find_all('li', class_='wp-item')
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for i in pic_list:
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a_tag = i.find('h3', class_='tit').find('a')
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link = a_tag.get('href')
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text = a_tag.get_text()
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get_pic(link, text)
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def get_pic(link, text):
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'''
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获取当前页面的图片,并保存
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'''
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html = download_page(link) # 下载界面
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soup = BeautifulSoup(html, 'html.parser')
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pic_list = soup.find('div', id="picture").find_all('img') # 找到界面所有图片
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headers = {"User-Agent": "Mozilla/5.0 (Windows NT 10.0; Win64; x64; rv:61.0) Gecko/20100101 Firefox/61.0"}
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create_dir('pic/{}'.format(text))
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for i in pic_list:
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pic_link = i.get('src') # 拿到图片的具体 url
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r = requests.get(pic_link, headers=headers) # 下载图片，之后保存到文件
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with open('pic/{}/{}'.format(text, link.split('/')[-1]), 'wb') as f:
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f.write(r.content)
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time.sleep(1) # 休息一下，不要给网站太大压力，避免被封
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def create_dir(name):
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if not os.path.exists(name):
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os.makedirs(name)
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def execute(url):
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page_html = download_page(url)
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get_pic_list(page_html)
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def main():
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create_dir('pic')
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queue = [i for i in range(1, 72)] # 构造 url 链接 页码。
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threads = []
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while len(queue) > 0:
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for thread in threads:
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if not thread.is_alive():
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threads.remove(thread)
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while len(threads) < 5 and len(queue) > 0: # 最大线程数设置为 5
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cur_page = queue.pop(0)
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url = 'http://meizitu.com/a/more_{}.html'.format(cur_page)
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thread = threading.Thread(target=execute, args=(url,))
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thread.setDaemon(True)
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thread.start()
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print('{}正在下载{}页'.format(threading.current_thread().name, cur_page))
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threads.append(thread)
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if __name__ == '__main__':
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main()
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import requests
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from bs4 import BeautifulSoup
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def download_page(url):
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headers = {"User-Agent": "Mozilla/5.0 (Windows NT 10.0; Win64; x64; rv:61.0) Gecko/20100101 Firefox/61.0"}
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r = requests.get(url, headers=headers)
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return r.text
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def get_content(html, page):
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output = """第{}页 作者：{} 性别：{} 年龄：{} 点赞：{} 评论：{}\n{}\n------------\n"""
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soup = BeautifulSoup(html, 'html.parser')
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con = soup.find(id='content-left')
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con_list = con.find_all('div', class_="article")
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for i in con_list:
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author = i.find('h2').string # 获取作者名字
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content = i.find('div', class_='content').find('span').get_text() # 获取内容
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stats = i.find('div', class_='stats')
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vote = stats.find('span', class_='stats-vote').find('i', class_='number').string
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comment = stats.find('span', class_='stats-comments').find('i', class_='number').string
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author_info = i.find('div', class_='articleGender') # 获取作者 年龄，性别
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if author_info is not None: # 非匿名用户
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class_list = author_info['class']
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if "womenIcon" in class_list:
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gender = '女'
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elif "manIcon" in class_list:
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gender = '男'
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else:
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gender = ''
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age = author_info.string # 获取年龄
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else: # 匿名用户
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gender = ''
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age = ''
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save_txt(output.format(page, author, gender, age, vote, comment, content))
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def save_txt(*args):
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for i in args:
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with open('qiubai.txt', 'a', encoding='utf-8') as f:
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f.write(i)
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def main():
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# 我们点击下面链接，在页面下方可以看到共有13页，可以构造如下 url，
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# 当然我们最好是用 Beautiful Soup找到页面底部有多少页。
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for i in range(1, 14):
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url = 'https://qiushibaike.com/text/page/{}'.format(i)
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html = download_page(url)
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get_content(html, i)
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if __name__ == '__main__':
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main()
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import random
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import time
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import requests
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from openpyxl import Workbook
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import pymysql.cursors
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def get_conn():
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'''建立数据库连接'''
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conn = pymysql.connect(host='localhost',
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user='root',
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password='root',
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db='python',
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charset='utf8mb4',
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cursorclass=pymysql.cursors.DictCursor)
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return conn
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def insert(conn, info):
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'''数据写入数据库'''
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with conn.cursor() as cursor:
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sql = "INSERT INTO `python` (`shortname`, `fullname`, `industryfield`, `companySize`, `salary`, `city`, `education`) VALUES (%s, %s, %s, %s, %s, %s, %s)"
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cursor.execute(sql, info)
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conn.commit()
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def get_json(url, page, lang_name):
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'''返回当前页面的信息列表'''
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headers = {
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'Host': 'www.lagou.com',
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'Connection': 'keep-alive',
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'Content-Length': '23',
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'Origin': 'https://www.lagou.com',
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'X-Anit-Forge-Code': '0',
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'User-Agent': 'Mozilla/5.0 (Windows NT 10.0; Win64; x64; rv:61.0) Gecko/20100101 Firefox/61.0',
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'Content-Type': 'application/x-www-form-urlencoded; charset=UTF-8',
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'Accept': 'application/json, text/javascript, */*; q=0.01',
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'X-Requested-With': 'XMLHttpRequest',
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'X-Anit-Forge-Token': 'None',
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'Referer': 'https://www.lagou.com/jobs/list_python?city=%E5%85%A8%E5%9B%BD&cl=false&fromSearch=true&labelWords=&suginput=',
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'Accept-Encoding': 'gzip, deflate, br',
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'Accept-Language': 'en-US,en;q=0.9,zh-CN;q=0.8,zh;q=0.7'
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}
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data = {'first': 'false', 'pn': page, 'kd': lang_name}
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json = requests.post(url, data, headers=headers).json()
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list_con = json['content']['positionResult']['result']
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info_list = []
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for i in list_con:
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info = []
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info.append(i.get('companyShortName', '无'))
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info.append(i.get('companyFullName', '无'))
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info.append(i.get('industryField', '无'))
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info.append(i.get('companySize', '无'))
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info.append(i.get('salary', '无'))
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info.append(i.get('city', '无'))
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info.append(i.get('education', '无'))
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info_list.append(info)
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return info_list
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def main():
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lang_name = 'python'
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wb = Workbook() # 打开 excel 工作簿
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conn = get_conn() # 建立数据库连接 不存数据库 注释此行
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for i in ['北京', '上海', '广州', '深圳', '杭州']: # 五个城市
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page = 1
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ws1 = wb.active
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ws1.title = lang_name
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url = 'https://www.lagou.com/jobs/positionAjax.json?city={}&needAddtionalResult=false'.format(i)
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while page < 31: # 每个城市30页信息
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info = get_json(url, page, lang_name)
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page += 1
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print(i, 'page', page)
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time.sleep(random.randint(10, 20))
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for row in info:
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# insert(conn, tuple(row)) # 插入数据库，若不想存入 注释此行
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ws1.append(row)
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conn.close() # 关闭数据库连接，不存数据库 注释此行
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wb.save('{}职位信息.xlsx'.format(lang_name))
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if __name__ == '__main__':
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main()
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