Python - Web表单提交

通常，与网页的交互需要通过 html 页面中的表单将一些数据提交到服务器。这些网络表单通常用于注册新帐户或提供一些信息（例如姓名或卷号）以检索考试结果等流程。requests模块使用带有所需参数的 POST 方法来优雅地处理此问题。

例子

在下面的示例中，我们通过提供用户 ID 和密码值来使用网站的注册表单。提交值后，我们打印响应。

import requests

ID_USERNAME = 'signup-user-name'
ID_PASSWORD = 'signup-user-password'
USERNAME = 'username'
PASSWORD = 'yourpassword'
SIGNUP_URL = 'http://codepad.org/login'
def submit_form():
    """Submit a form"""
    payload = {ID_USERNAME : USERNAME, ID_PASSWORD : PASSWORD,}

    resp = requests.get(SIGNUP_URL)
    print "Response to GET request: %s" %resp.content

    resp = requests.post(SIGNUP_URL, payload)
    print "Headers from a POST request response: %s" %resp.headers
#print "HTML Response: %s" %resp.read()

if __name__ == '__main__':
    submit_form()

当我们运行上面的程序时，我们得到以下输出 -

Response to GET request: <!DOCTYPE html>
<html>

<head>

    <meta http-equiv="content-type" content="text/html; charset=UTF-8">
    <meta HTTP-EQUIV="Pragma" CONTENT="no-cache">
    <meta HTTP-EQUIV="Expires" CONTENT="-1">

    <title>Login - codepad</title>

    

    <link href="/main.css" media="screen" rel="stylesheet" type="text/css" />
    <style type="text/css">
    

    </style>
    <script src='https://www.google.com/recaptcha/api.js'></script>
    <script>
       function onRecaptcha(token) {
         document.getElementById("editor-form").submit();
       }
    </script>
</head>


    <body >

	.....................
	.....................