Python中两种方法实现模拟登陆的代码实例

import urllib.request 
import urllib.parse 
import http.cookiejar 
#post的内容 
values={ 
'logon.x':'linke', 
'password':'xxxx', 
'username':'xxxxx' 
} 
 
#登陆的地址 
logUrl="http://192.168.32.112:8080/templates/index/hrlogon.do" 
 
#构建cook 
cook=http.cookiejar.CookieJar() 
 
#构建openner 
openner=urllib.request.build_opener(urllib.request.HTTPCookieProcessor(cook)) 
 
#添加headers 
openner.addheaders = [('User-agent', 'Mozilla/5.0 (Windows NT 6.3; WOW64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/31.0.1650.63 Safari/537.36')] 
 
r=openner.open(logUrl,urllib.parse.urlencode(values).encode()) 
 
#print(r.read().decode('gbk')) 
 
r=openner.open("http://192.168.132.62:8080/kq/kqself/card/carddata.do?b_query=link") 
 
print(r.read().decode('gbk'))

import urllib 
import urllib.request 
import urllib.parse 
import http.cookiejar 
import re 
 
 
class loginRLKQ: 
 post_data=b""; 
 def __init__(self): 
 #初始化类，cook的值 
 cj=http.cookiejar.CookieJar() 
 opener=urllib.request.build_opener(urllib.request.HTTPCookieProcessor(cj)) 
 opener.addheaders=[('User-Agent','Mozilla/4.0 (compatible; MSIE 5.5; Windows NT)')] 
 #初始化全局opener 
 urllib.request.install_opener(opener) 
 
 #login方法需要加入post数据 
 def login(self,loginurl,encode): 
 #模拟登陆 
 req=urllib.request.Request(loginurl,self.post_data) 
 rep=urllib.request.urlopen(req) 
 d=rep.read() 
 #print(d) 
 d=d.decode(encode) 
 return d 
 #登陆之后获取其他网页方法 
 def getUrlContent(self,url,encode): 
 req2=urllib.request.Request(url) 
 rep2=urllib.request.urlopen(req2) 
 d2=rep2.read() 
 d22=d2.decode(encode) 
 return d22 
if __name__=="__main__": 
 #实例化类 
 x=loginRLKQ() 
 #给post数据赋值 
 x.post_data=urllib.parse.urlencode({'username':"xxdd",'password':'xxdd','logon.x':'linke'}).encode(encoding="gbk") 
 #登陆 
 y=x.login("http://192.168.132.61:8080/templates/index/hrlogon.do","gbk") 
 #获取网页信息 
 print(x.getUrlContent("http://192.124.32.16:8080/kq/kqself/card/carddata.do?b_query=link","gbk"))