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,requestapp=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 messageif __name__=='__main__':app.run(debug=True,port=5000)
POST请求
使用request.form可以接受表单数据
login.html模板：
<!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_templateapp=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 messagereturn render_template('login.html')if __name__=='__main__':app.run(debug=True)
