python爬图片 beautifulsoup_【Python爬虫】基于BeautifulSoup的微博图片爬虫

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这个仅是用来记录我的学习过程，若有错误或者其他问题，欢迎指出。

[Python] 纯文本查看 复制代码import requests

from bs4 import BeautifulSoup

headers = {

"cookie": "YOUR_COOKIE", # 请传入cookie

"user-agent": "Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 \

(KHTML, like Gecko) Chrome/72.0.3626.119 Safari/537.36"

}

class Weibo(object):

def __init__(self):

self.uid = "Weibo_UID" # 请设置微博用户的UID

self.url = "/u/" + self.uid

def mysql(self):

pass

@staticmethod

def send_request(url):

r = requests.get(url, headers=headers).content.decode("utf-8")

return r

def weibo_infos(self, html):

parser = self.send_request(html)

soup = BeautifulSoup(parser, "html.parser")

weibo_name = soup.find("title").text.replace("的微博", "")

pages = int(soup.find("div", class_="pa", id="pagelist").input["value"])

weibo_url_list = ["/u/" + self.uid + "?page=%d" % (i+1) for i in range(pages)]

return weibo_name, pages, weibo_url_list

def weibo_parser(self, url):

import re

pic_id = list()

get_info = BeautifulSoup(self.send_request(url), "html.parser")

group_pic = [i["href"] for i in get_info.find_all("a", text=pile('组图'))]

img_id = [i["src"].split("/")[-1] for i in get_info.find_all("img", alt="图片")]

pic_id += img_id

for i in group_pic:

s_soup = BeautifulSoup(self.send_request(i), "html.parser")

pic_list = [i["src"].split("/")[-1] for i in s_soup.find_all(alt="图片加载中...")]

pic_id += [j for j in pic_list if j not in pic_id]

return pic_id

@staticmethod

def img_download(name, pic_id, url):

import os

path = r"C:\Users\Administrator\%s" % name + "\\"

if not os.path.exists(path):

os.makedirs(path)

try:

if os.path.exists(path + pic_id):

print("%s：该张图片已下载！" % pic_id)

else:

byte = requests.get(url, headers).content

with open(path + pic_id, "wb") as f:

f.write(byte)

except Exception as e:

print(e, "\n下载出错！")

def main(self):

total_pics = 0

weibo_name, pages, weibo_url_list = self.weibo_infos(self.url)

print("正在爬取 【 %s 】 的微博" % weibo_name)

print("总共检测到 %d 页" % pages)

for page, weibo_url in enumerate(weibo_url_list):

print("正在爬取第 %d 页微博" % (page+1))

pic_url = ["/large/" + pic_id for pic_id in self.weibo_parser(weibo_url)]

print("抓取第 %d 页微博完成，正在下载图片..." % (page+1))

for num, pic in enumerate(pic_url):

print("正在保存：%s" % pic)

self.img_download(weibo_name, pic.split("/")[-1], pic)

total_pics += 1

print(">>>第 %d 张图片<<

print("爬取完成！\n总共下载了 %d 张图片！" % total_pics)

if __name__ == '__main__':

Weibo().main()

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