学习猿地网页爬取订单号

from lxml import etree
import requests


class LMonkey():
    loginURL = 'https://www.lmonkey.com/login'
    orderURL = 'https://www.lmonkey.com/my/order'
    headers = {
        'user-agent': # 自己设置即可
    }
    token = ''
    request = None
    orderNumber = 0

    # 初始化
    def __init__(self):
    # 设置初始化请求对象
        self.request = requests.session()
        if self.getURL():
            if self.postURL():
                self.getOrderNumber()

    # 1 登陆页面 获取token
    def getURL(self):
        request = self.request.get(url=self.loginURL, headers=self.headers)
        if request.status_code == 200:
            print('请求页面成功')
            webpage = etree.HTML(request.text)
            self.token = webpage.xpath("//input[@name='_token']/@value")[0]
            print(self.token)
            print('请求token成功')
            return True
        else:
            print('请求失败')

    # 2 模拟登录 设置cookie
    def postURL(self):
        _username = input("请输入用户名：")
        _password = input("请输入密码：")
        formData = {
            '_token': self.token,
            'username': _username,
            'password': _password,
        }
        postResult = self.request.post(url=self.loginURL, headers=self.headers, data=formData)
        if postResult.status_code == 200 or postResult.status_code == 302:
            print("模拟登录成功")
            return True
        else:
            print("模拟登录失败")

    # 3 获取订单号码
    def getOrderNumber(self):
        getResult = self.request.get(url=self.orderURL, headers=self.headers)
        if getResult.status_code == 200:
            print("账户中心请求成功，正在解析")
            webPage = etree.HTML(getResult.text)
            od = webPage.xpath('//div[@class="avatar-content"]//small/text()')[0]
            print(od)
            self.orderNumber = od


# 类的实例化
_order = LMonkey()