教你如何用urllib刷csdn访问量(11.22更新，抛个异常）

本文分享了使用Python的urllib库直接操作网络请求，替代selenium，以实现对特定网页访问量的自动化提升。文章详细介绍了代码实现过程，包括处理SSL证书验证失败的解决方案，以及如何设置合理的请求间隔避免被封禁。

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写在最前面：

昨天讲了如何用selenium操作浏览器刷访问量，结果跑了一晚上就被封了，打开博客链接直接就到登录界面了，气死！

也怪我昨天太急了，时间间隔设的太短。

不过

道高一尺，魔高一丈，

今天用urllib直接刷！

import time
import threading
from urllib import request,error
from urllib.error import URLError,HTTPError
import requests
import ssl


ssl._create_default_https_context = ssl._create_unverified_context
#
def login():
    i = 'https://blog.youkuaiyun.com/ssjdoudou/article/details/'
    j = ['84305473','84312675','84261341','84257207','84261078','84204133','84203222','84202708','84194532','84194644','84142602','84189684','83999415','84146012','84105110','84109362','83987504', '83545438', '84023801', '84036156', '83934801',
         '83931392', '83927099', '83901600','83869532', '84076067', '83860369', '83832502', '83796792', '83794522','83794429',
         '83786919','83758980','83720386','83719691','83714375','83692895','83692501','83661576','83658652','83627202','83620957',
         '83592276','83586587','83582300','83541030','83508015','83477144','83473955','83420467','83412751','83387953','83382481',
         '83353600','83352361','83352066','83351442','83317964','83311866','83280985','83276624','83240486',
         '83217851','83189452','83154903']
    print(len(j))
    data = {}
    count = 0
    header = {'User-Agent': 'User-Agent:Mozilla/5.0 (Macintosh; Intel Mac OS X 10_12_3) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/56.0.2924.87 Safari/537.36'}
    for k in range(len(j)):
        s = i + j[k]
        myrequest = request.Request(s,data, headers=header)
        rec = request.urlopen(myrequest)  # 发送GET请求，获取博客文章页面资源
        page = rec.read()
        count += 1
        print(count)


def mytime():
    while 1:
        try:
            login()
            time.sleep(75)
        except ConnectionResetError:
            login()
            time.sleep(75)
        except error.HTTPError:
            login()
            time.sleep(75)
        finally:
            login()
            time.sleep(75)


if __name__ == "__main__":
    t = threading.Thread(target=mytime())
    t.start()

有两点注意

第一，ssl，

Python 升级到 2.7.9 之后引入了一个新特性，当使用urllib.urlopen打开一个 https 链接时，会验证一次 SSL 证书。

而当目标网站使用的是自签名的证书时就会抛出一个 urllib2.URLError: <urlopen error [SSL: CERTIFICATE_VERIFY_FAILED] certificat verify failed (_ssl.c:581)> 的错误消息

解决办法如下：

import ssl
ssl._create_default_https_context = ssl._create_unverified_context

第二，一定要用header伪装