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zhihuspider.py
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import requests
from bs4 import BeautifulSoup
import time
import json
import redis
import ssl
import threading
import random
ssl._create_default_https_context = ssl._create_unverified_context
session = requests.session()
headers = {'Cookie': '添加自己的cookie在此处',
'User-Agent': 'Mozilla/5.0 (Windows NT 6.1; WOW64; rv:55.0) Gecko/20100101 Firefox/55.0',
'Accept': 'application/json, text/plain, */*'}
# 连接redis配置
def toRedis():
pool = redis.ConnectionPool(host='127.0.0.1', port=6379)
r = redis.Redis(connection_pool=pool)
print('--------------redis connection success-----------')
return r
# 爬取当前用户关注列表
def zhizhu():
url = 'https://www.zhihu.com/'
rs = session.get(url, headers=headers)
s = session.get(
'https://www.zhihu.com/people/qia-la-ma-zuo-fu-61/following', headers=headers)
soup = BeautifulSoup(s.text)
with open('html/user.html', 'w', encoding='utf-8') as f:
f.write(soup.prettify())
f.close()
pageNo = len(soup.select('.Pagination button'))
offset = 0
for x in range(1, pageNo):
print(x)
param = {'include': 'data[*].answer_count,articles_count,gender,follower_count,is_followed,is_following,badge[?(type=best_answerer)].topics',
'offset': str(offset),
'limit': '20'}
s = session.get(
'https://www.zhihu.com/api/v4/members/qia-la-ma-zuo-fu-61/followees', params=param, headers=headers)
myjson = json.loads(s.text)
myjson = json.dumps(myjson, ensure_ascii=False)
time.sleep(2)
with open('html/' + str(x) + '.html', 'w+', encoding='utf-8') as f:
f.write(myjson)
f.close()
time.sleep(1)
offset = offset + 20
# 解析后写入redis队列
def paraser(pageNo):
try:
for x in range(1, pageNo):
with open('html/' + str(x) + '.html', 'r', encoding='utf-8') as f:
data = json.load(f)
for x in range(0, 20):
listd = data['data'][x]
ids = listd['id']
url = listd['url'].replace('api/v4/', '')
urls = listd['url']
name = listd['name']
url_token = listd['url_token']
follower_count = listd['follower_count']
headline = listd['headline']
answer_count = listd['answer_count']
articles_count = listd['articles_count']
user = {'name': 'name', 'url': url, 'follower_count': follower_count,
'headline': headline, 'answer_count': answer_count, 'answer_count': answer_count}
r.set(ids, user)
r.sadd('userurls', urls)
r.sadd('ids', ids)
r.sadd('url_token', url_token)
r.sadd('url_token_1',url_token)
r.sadd('url_token_my',url_token)
print(r.get(ids).decode('utf-8'))
except IndexError:
pass
# 单线程爬取用户信息
def urlIteration(r):
url_tokens = r.smembers('url_token_1')
for userurl_token in url_tokens:
s = session.get('https://www.zhihu.com/people/' +
userurl_token.decode('utf-8')+ '/following', headers=headers,verify=False)
time.sleep(1)
soup = BeautifulSoup(s.text)
buttonNo = len(soup.select('.Pagination button'))
# print(len(soup.select('.Pagination button')))
if buttonNo > 0:
if buttonNo > 6:
pageNo = soup.select('.Pagination button')[5].text
else:
pageNo = soup.select('.Pagination button')[buttonNo - 2].text
else:
pageNo = 1
try:
offset = 0
for x in range(1, int(pageNo) + 1):
param = {'include': 'data[*].answer_count,articles_count,gender,follower_count,is_followed,is_following,badge[?(type=best_answerer)].topics',
'offset': str(offset),
'limit': '20'}
s = session.get(
'https://www.zhihu.com/api/v4/members/' + userurl_token.decode('utf-8') + '/followees', params=param, headers=headers)
myjson = json.loads(s.text,encoding = 'utf-8')
for i in range(0, 20):
listd = myjson['data'][i]
ids = listd['id']
url = listd['url'].replace('api/v4/', '')
urls = listd['url']
name = listd['name']
url_token = listd['url_token']
follower_count = listd['follower_count']
headline = listd['headline']
answer_count = listd['answer_count']
articles_count = listd['articles_count']
user = {'name': name, 'url': url, 'follower_count': follower_count,
'headline': headline, 'answer_count': answer_count, 'answer_count': answer_count}
r.set(ids, user)
r.sadd('userurls', urls)
r.sadd('ids', ids)
if r.sismember('url_token',url_token):
pass
else:
r.sadd('url_token', url_token)
r.sadd('url_token_1',url_token)
print(r.get(ids).decode('utf-8'))
time.sleep(2)
offset = offset + 20
except IndexError:
pass
session.close()
r.srem('url_token_1',userurl_token)
# 多线程爬取用户信息
def action(arg, r):
while r.scard('url_token_1') > 0:
userurl_token = r.spop('url_token_1')
s = session.get('https://www.zhihu.com/people/' +
userurl_token.decode('utf-8') + '/following', headers=headers, verify=False)
time.sleep(1)
soup = BeautifulSoup(s.text)
buttonNo = len(soup.select('.Pagination button'))
if buttonNo > 0:
if buttonNo > 6:
pageNo = soup.select('.Pagination button')[5].text
else:
pageNo = soup.select('.Pagination button')[buttonNo - 2].text
else:
pageNo = 1
try:
offset = 0
for x in range(1, int(pageNo) + 1):
param = {'include': 'data[*].answer_count,articles_count,gender,follower_count,is_followed,is_followinll,badge[?(type=best_answerer)].topics',
'offset': str(offset),
'limit': '20'}
s = session.get(
'https://www.zhihu.com/api/v4/members/' + userurl_token.decode('utf-8') + '/followees', params=param, headers=headers)
myjson = json.loads(s.text, encoding='utf-8')
for i in range(0, 20):
listd = myjson['data'][i]
ids = listd['id']
url = listd['url'].replace('api/v4/', '')
urls = listd['url']
name = listd['name']
url_token = listd['url_token']
follower_count = listd['follower_count']
headline = listd['headline']
answer_count = listd['answer_count']
articles_count = listd['articles_count']
user = {'name': name, 'url': url, 'follower_count': follower_count,
'headline': headline, 'answer_count': answer_count, 'answer_count': answer_count}
r.set(ids, user)
r.sadd('userurls', urls)
r.sadd('ids', ids)
if r.sismember('url_token', url_token):
pass
else:
r.sadd('url_token', url_token)
r.sadd('url_token_1', url_token)
print(r.get(ids).decode('utf-8'))
#设置请求间隔时间，防反爬
time.sleep(random.randint(10,30))
offset = offset + 20
except (IndexError,Exception) as e:
if 'IndexError' in repr(e):
pass
else:
print(repr(e))
r.sadd('url_token_1',userurl_token)
break
finally:
session.close()
if __name__ == '__main__':
r = toRedis()
paraser(6)
#单线程抓取
urlIteration(r)
#设置线程数，多线程抓取
for i in range(2):
t = threading.Thread(target=action, args=(i, r))
t.start()