这个爬虫是18年过年在家无聊写的，具体咋分析已经差不多忘记了,直接上代码了。
这是一份对花瓣网图片爬取的 爬虫，具体就是去花瓣网查找自己想找的图片，然后复制链接就可以运行了。
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| # -*- coding: utf-8 -*-
#data:2018.2.20
import requests
import re
import os
from requests.exceptions import RequestException
url = str(input("请输入网址："))
image_url = "http://hbimg.b0.upaiyun.com/"
d_next_url = url+'?jdsmifcz&limit=20&wfl=1&max='
l_next_url = url+'&jdtyxl2z&per_page=20&wfl=1&page='
pwd = './huaban/'
b = 0
def get_main(url):
try:
result = requests.get(url)
if result.status_code == 200:
result.encoding = 'utf-8'
return result.text
return None
except RequestException as r:
print("error: ", r)
def down_image(filename, url):
try:
result = requests.get(url)
with open(filename, 'wb')as f:
for r in result.iter_content():
f.write(r)
except Exception as e:
print("error: ", e)
def get_page(url):
global b
print('正在请求的网址是：',url)
text = get_main(url)
find = re.compile(r'app\.page\["pins"\].*')
null = None
true =True
pins = re.findall(find, text)
page = eval(pins[0][19:-1])
photo_num = 0
#print(page)
for item in page:
info = {}
info['pin_id'] = item['pin_id']
info['image_url'] =image_url + item['file']['key']+'_fw658'
info['like_count'] = item['like_count']
info['repin_count'] = item['repin_count']
if (info['like_count'] > 0 and info['repin_count'] > 2) or info['repin_count'] > 10 or info['like_count'] > 10:
print('正在下载第{0}张图片'.format(photo_num))
url_pin_id = info['pin_id']
filename = pwd + str(info['pin_id']) + '.jpg'
if os.path.isfile(filename):
print('文件已经存在,正在下载下一张 ', filename)
continue
down_image(filename, str(info['image_url']))
photo_num += 1
while b <= 100:
if 'search' not in url:
get_page(d_next_url + str(url_pin_id))
else:
b += 1
get_page(l_next_url + str(b))
def main():
if not os.path.exists(pwd):
os.mkdir(pwd)
get_page(url)
if __name__ == '__main__':
print( """
By：
_ __ _ _ _
| |/ /___ _ _| |__ ___ / \ _ __ __| |
| ' // _ \ | | | '_ \ / _ \ / _ \ | '__/ _` |
| . \ __/ |_| | |_) | (_) / ___ \| | | (_| |
|_|\_\___|\__, |_.__/ \___/_/ \_\_| \__,_|
|___/ (适用于Python3.6)
""")
main()
|
