多拨爬虫自动切换 IP 的例子

最近在做网易云的信息抓取，数据太大了。几十个亿。
用 HTTP 代理吧，多线程太慢了。所以就用了远程多拨。
速度还是挺快的。然后就把这个自动切换的脚本放出来。
也是给自己做个记录吧。
其实就是调用 win 下自己的那个 V-P-N 拨号。拨远程而已。。

'''

import os
import time

class VPNHelper(object):
# VPNName: _vpnIP
# VPNUsername: _userName
# VPNPassword: _passWord
def __init__(self, _vpnIP="代理名称", _userName="多拨账号", _passWord="多拨密码", WinDir=r"C:\windows\system32", RasDialFileName=r'\rasdial.exe'):
self.IPToPing = _vpnIP
self._VPNName = _vpnIP
self._UserName = _userName
self._PassWord = _passWord
self._WinDir = WinDir
self._RasDialFileName = RasDialFileName
self._VPNPROCESS = self._WinDir + self._RasDialFileName

def connectVPN(self):  
    try:  
        command = self._VPNName + " " + self._UserName + " " + self._PassWord  
        res = os.system(self._VPNPROCESS + " " + command)  
        return res  
    except:  
        print("VPN 连接失败!")  

def disConnectVPN(self):
    try:
        command = self._VPNName + " /d"
        os.system(self._VPNPROCESS + " " + command)
    except:
        print("VPN 断开失败!")

def Restart(self, waitingTime=2):
    self.disConnectVPN()
    time.sleep(waitingTime)
    res = self.connectVPN()
    return res

# if __name__ == "__main__":
# vpn = VPNHelper()
# vpn.Restart()

'''