爬取mzi.com妹子图片网站（requests库）

看了崔大佬的文章，写了这个爬虫，学习了！原文地址

现在该网站加了反爬机制，不过在headers里加上refere参数就行了。

以下代码仅做学习记录之用：

from bs4 import BeautifulSoup
import requests
import os
import time
# 构造带页码的页面链接
def get_mzi_page():
    headers = {
        'User-Agent': "Mozilla/5.0 (Windows NT 6.1; WOW64) AppleWebKit/537.1"
                      " (KHTML, like Gecko) Chrome/22.0.1207.1 Safari/537.1"}
    res = requests.get('http://www.mzitu.com', headers=headers)
    soup = BeautifulSoup(res.text, 'lxml')
    page = soup.select('.nav-links a')  # 返回一个列表
    page_count = page[-2].get_text()
    for i in range(1, int(page_count) + 1):
        # 构造每个页面链接
        page_url = "http://www.mzitu.com/page/" + f"{i}/"
        # 获取当前页面的所有专题,并输出提示
        print(f"总计{page_count}页,当前第{i}页:")
        get_mzi_channel(page_url)

def get_mzi_channel(url):
    headers = {
        'User-Agent': "Mozilla/5.0 (Windows NT 6.1; WOW64) AppleWebKit/537.1"
                      " (KHTML, like Gecko) Chrome/22.0.1207.1 Safari/537.1"}
    res = requests.get(url, headers=headers)
    soup = BeautifulSoup(res.text, 'lxml')
    # 抓取每个妹子的专题页面
    channel = soup.select('#pins li span a')
    channel_count_onepage = len(channel)
    print(channel)
    count = 0
    # 遍历所有专题url，逐个访问下载图片
    for c in channel:
        count += 1
        channel_name = c.get_text()
        os.mkdir('D;\mziPic')
        filepath = f'D:\mziPic\{channel_name}'
        if os.path.exists(filepath):
            pass
        else:
            os.mkdir(filepath)
        channel_url = c.get('href')
        print(f"本页总计{len(channel)}个妹子，当前第{count}个妹子")# 提示信息
        get_mzi_img(filepath, channel_url)

def get_mzi_img(filepath ,url):
    # 下载一个妹子的所有图片
    headers = {
        'User-Agent': "Mozilla/5.0 (Windows NT 6.1; WOW64) AppleWebKit/537.1"
                      " (KHTML, like Gecko) Chrome/22.0.1207.1 Safari/537.1"}
    res = requests.get(url, headers=headers)
    soup = BeautifulSoup(res.text, 'lxml')
    #每个妹子的all图片是分多个页面展示的，所以还要再访问多个页面，逐图片下载
    img_page = soup.select('.pagenavi a')
    img_page_count = img_page[-2].get_text()
    # 构造逐图片下载的url
    count2 = 0
    for i in range(1, int(img_page_count) + 1):
        count2 += 1
        img_page_url = url + f'/{i}'
        print(f"本妹子共{img_page_count}图片，现第{count2}张")
        print("img_page_url(refere)：", img_page_url)
        download(filepath, img_page_url, count2)

def download(filepath, img_page_url, count2):
    headers = {
               'User-Agent': 'Mozilla/5.0 (Windows NT 10.0; WOW64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/63.0.3239.132 Safari/537.36'
               }
    headers2 = {'Accept': 'image/webp,image/apng,image/*,*/*;q=0.8',
               'Accept-Encoding': 'gzip, deflate',
               'Accept-Language': 'zh-CN,zh;q=0.9,en;q=0.8',
               'Connection': 'keep-alive',
               'DNT': '',
               'Host': 'i.meizitu.net',
               'Referer': img_page_url,
               'User-Agent': 'Mozilla/5.0 (Windows NT 10.0; WOW64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/63.0.3239.132 Safari/537.36'
               }
    res = requests.get(img_page_url, headers=headers)
    print("res.status_code", res.status_code)
    if res.status_code == 200:
        soup = BeautifulSoup(res.text, 'lxml')
        img_url = soup.find('div', class_='main-image').find('img').get('src')
        print("图片地址", img_url)
        # 这个网站访问图片必须要带refere参数，不然返回403，（折腾好久才发现问题
        res2 = requests.get(img_url, headers=headers2)
        print("res2.status_code:", res2.status_code)
        with open(filepath + f'/{count2}.jpg', 'ab') as f:
            f.write(res2.content)
            f.close()
        # time.sleep(1) # 注释后运行下好像不封ip。。。
    else:
        pass

if __name__ == '__main__':
    get_mzi_page()