【Python】Web学习笔记_flask(2)—

【Python】Web学习笔记_flask(2)——getpost

news2024/9/20 12:51:14

flask提供的request请求对象可以实现获取url或表单中的字段值

GET请求

从URL中获取name、age两个参数

from flask import Flask,url_for,redirect,request

app=Flask(__name__)

@app.route('/')
def index():
    name=request.args.get('name')
    age=request.args.get('age')
    message=f'姓名:{name}\n年龄:{age}'
    return message


if __name__=='__main__':
    app.run(
        debug=True,
        port=5000
    )

POST请求

使用request.form可以接受表单数据

<!DOCTYPE html>
<html lang="en">
<head>
    <meta charset="UTF-8">
    <title>用户登录</title>
</head>
<body>
<form action="" method="post">
    <div>
        <label for="username">用户名</label>
        <input type="text" id="username" name="username" value="">
    </div>
    <div>
        <label for="password">密码</label>
        <input type="password" id="password" name="password" value="">
    </div>
    <button type="submit">提交</button>
</form>

</body>
</html>

获取用户名称、密码

from flask import Flask,url_for,redirect,request,render_template

app=Flask(__name__)

@app.route('/login',methods=['GET','POST'])
def login():
    if request.method=='POST':
        username=request.form['username']
        password=request.form['password']
        message=f'姓名:{username}</br>密码:{password}'
        return message
    return render_template('login.html')

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