当前位置:首页 >> 脚本专栏

python实现自动登录

利用python,可以实现填充网页表单,从而自动登录WEB门户。

(注意:以下内容只针对python3)

环境准备:

(1)安装python
(2)安装splinter,下载源码 python setup install

#coding=utf-8
import time
from splinter import Browser
 
def login_mail(url):
  browser = Browser()
  #login 163 email websize
  browser.visit(url)
  #wait web element loading
  #fill in account and password
  browser.find_by_id('username').fill('你的用户名称')
  browser.find_by_id('password').fill('你的密码')
  #click the button of login
  browser.find_by_id('loginBtn').click()
  time.sleep(5)
  #close the window of brower
  browser.quit()
 
if __name__ == '__main__':
  mail_addr ='http://reg.163.com/'
  login_mail(mail_addr)

Tips:

(1)如果需要修改web的html属性,可以使用:js

browser.execute_script('document.getElementById("Html属性ID").value = "在此提供默认值"')

(2)browser = Browser()

不指定的情况下,浏览器驱动是火狐(Firefox),可以指定其他:browser = Browser(‘chrome'),需要下载对应的驱动程序

1.python3浏览页面

#coding=utf-8
import urllib.request
import time
#在请求加上头信息,伪装成浏览器访问
headers = {'User-Agent':'Mozilla/5.0 (Windows NT 6.1; WOW64; rv:23.0) Gecko/20100101 Firefox/23.0'}
chaper_url='http://XXX'
 
vist_num=1
while vist_num<1000:
 if vist_num%50==0:
  time.sleep(5)
 print("This is the 【 "+str(vist_num)+" 】次尝试")
 req = urllib.request.Request(url=chaper_url, headers=headers) 
 urllib.request.urlopen(req).read() #.decode('utf-8')
 vist_num+=1

2.python 多线程

#coding=utf-8
import threading #导入threading包
from time import sleep
import time
 
def fun1(): 
  print ("Task 1 executed." )
  time.sleep(3)
  print ("Task 1 end." )
 
def fun2():
  print ("Task 2 executed." )
  time.sleep(5)
  print ("Task 2 end." )
  
threads = [] 
t1 = threading.Thread(target=fun1) 
threads.append(t1)
t2 = threading.Thread(target=fun2)
threads.append(t2)
 
for t in threads:
  # t.setDaemon(True) 
  t.start() 

3.利用python下载百度图片

#coding=utf-8
import urllib.request
import re
 
def getHtml(url):
  page = urllib.request.urlopen(url)
  html = page.read()
  return html
 
def getImg(html):
  reg = r'src="/UploadFiles/2021-04-08/(.+">

效果:

python实现自动登录

官网:链接地址

官方示例程序:链接地址

以上就是本文的全部内容,希望对大家的学习有所帮助,也希望大家多多支持。