面向对象用python登陆https://jywg.18.cn/Login?el=1&clear=&returl=%2fTrade%2fBuy
时间: 2024-06-08 21:11:13 浏览: 14
首先,需要先安装requests库和BeautifulSoup库,可以使用以下命令安装:
```
pip install requests
pip install beautifulsoup4
```
然后,可以按照以下步骤实现登录:
1. 导入需要的库:
```python
import requests
from bs4 import BeautifulSoup
```
2. 创建一个会话对象:
```python
session = requests.Session()
```
3. 访问登录页面,并获取登录所需的参数:
```python
url = 'https://jywg.18.cn/Login?el=1&clear=&returl=%2fTrade%2fBuy'
response = session.get(url)
soup = BeautifulSoup(response.text, 'html.parser')
viewstate = soup.find('input', {'name': '__VIEWSTATE'})['value']
eventvalidation = soup.find('input', {'name': '__EVENTVALIDATION'})['value']
```
4. 构造登录表单数据:
```python
data = {
'__VIEWSTATE': viewstate,
'__EVENTVALIDATION': eventvalidation,
'ctl00$ContentPlaceHolder1$txtLoginName': 'your_username',
'ctl00$ContentPlaceHolder1$txtPassword': 'your_password',
'ctl00$ContentPlaceHolder1$btnLogin': '登录',
}
```
请将 `your_username` 和 `your_password` 替换为你自己的用户名和密码。
5. 提交登录表单:
```python
login_url = 'https://jywg.18.cn/Login'
response = session.post(login_url, data=data)
```
6. 验证登录是否成功:
```python
if '欢迎您' in response.text:
print('登录成功')
else:
print('登录失败')
```