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="(.+?\.jpg)"' imgre = re.compile(reg) html=html.decode('utf-8') imglist = re.findall(imgre,html) x = 0 for imgurl in imglist: urllib.request.urlretrieve(imgurl,'%s.jpg' % x) x+=1 print(str(x)) html = getHtml("http://image.baidu.com/channel?c=%E6%91%84%E5%BD%B1&t=%E5%85%A8%E9%83%A8&s=0") print(getImg(html))
效果:
官网:链接地址
官方示例程序:链接地址
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