python实现Flask POST Demo

数据处理逻辑

from flask import Flask, request

app = Flask(__name__)


@app.route('/', methods=['POST'])
def index():
    username = request.form['username']
    password = request.form['password']
    if username == "Jhon" and password == "1":
        return f"<html><body>Welcome {username}</body></html>"
    else:
        return f"<html><body>Welcome!</body></html>"


if __name__ == '__main__':
    app.run(debug=True)

前端代码

<!DOCTYPE html>
<html lang="en">
<head>
    <meta charset="UTF-8">
    <title>GET and POST</title>
</head>
<body>
    <form action = "http://localhost:5000" method = "post">
         <table>
            <tr>
                <td>Name</td>
                <td><input type ="text" name ="username"></td>
            </tr>
            <tr>
                <td>Password</td>
                <td><input type ="password" name ="password"></td>
            </tr>
            <tr>
                <td><input type = "submit"></td>
            </tr>
        </table>
    </form>
</body>
</html>

两个文件在同目录下，运行py文件即可。