Python 所请求的 URL 不允许使用该方法。在烧瓶中
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The method is not allowed for the requested URL. in Flask
提问by malek tio
I write this forum and I want to validate user name and password but I have result.Method Not Allowed
我写这个论坛，我想验证用户名和密码，但我有结果。方法不允许
hello.html
你好.html
<html lang='en'>
<head>
<meta charset="utf-8" />
<title>Hello</title>
</head>
{% if error %}
{{ error }}
{% endif %}
<body>
Hello
</body>
</html>The method is not allowed for the requested URL.
所请求的 URL 不允许使用该方法。
<!DOCTYPE html>
<!--[if (gte IE 9)|!(IE)]><!--> <html lang="en"> <!--<![endif]-->
<head>
<meta charset="utf-8">
<title>welcome</title>
<link href="{{ url_for('static', filename='style.css') }}" rel="stylesheet" type="text/css" />
</head>
<body>
<div class="container">
<section id="content">
<form action="/login" method="post">
<h1>Login Form</h1>
<div>
<input type="text" placeholder="Username" required="" name="username" />
</div>
<div>
<input type="password" placeholder="Password" required="" name="password" />
</div>
<div>
<input type="submit" value="Log in" />
</div>
</form><!-- form -->
</section><!-- content -->
</div><!-- container -->
</body>
</html>
I write a forum:
我写一个论坛：
in app.py:
在 app.py 中：
from flask import Flask
from flask import request
from flask import render_template, redirect, url_for, request
APP = Flask(__name__)
@APP.route('/')
def login1():
return render_template('login1.html')
@APP.route('/login', methods=['GET', 'POST'])
def login():
error = None
if request.method == 'POST':
if request.form['username'] != 'admin' or request.form['password'] != 'admin':
error = 'Invalid Credentials. Please try again.'
else:
return redirect(url_for('home'))
return render_template('hello.html', error=error)
if __name__ == '__main__':
APP.debug=True
APP.run()
I can't validate the input? how can help me please
我无法验证输入？请如何帮助我
采纳答案by LeoG
I modified your code app.py code to the below, along with your current hello.html and login1.html this is working fine.
我将您的代码 app.py 代码以及您当前的 hello.html 和 login1.html 修改为以下代码，这工作正常。
from flask import Flask
from flask import request
from flask import render_template, redirect, url_for, request
APP = Flask(__name__)
@APP.route('/')
def login1():
return render_template('login1.html')
@APP.route('/login', methods=['GET', 'POST'])
def login():
error=None
if request.method == 'POST':
if request.form['username'] != 'admin' or request.form['password'] != 'admin':
error = 'Invalid Credentials. Please try again.'
return redirect(url_for('login1'))
else:
return render_template('hello.html', error=error)
if __name__ == '__main__':
APP.debug=True
APP.run()
回答by itzMEonTV
Try this.
尝试这个。
First change the line in app.py
首先改变行 app.py
@APP.route('/?', methods=['GET', 'POST'])
to
到
@APP.route('/login', methods=['GET', 'POST'])
And then in login1.html, change these lines to corresponding lines.
然后在 中login1.html，将这些行更改为相应的行。
<form action="/login" method="post">
<input type="text" placeholder="Username" required="" id="username" name="username" />
<input type="password" placeholder="Password" required="" id="password" name="password" />
Update
更新
<form action="/login" method="post">
<h1>Login Form</h1>
<div>
<input type="text" placeholder="Username" required="" id="username" name="username" />
</div>
<div>
<input type="password" placeholder="Password" required="" id="password" name="password" />
</div>
<div>
<input type="submit" value="Log in" />
</div>
</form><!-- form -->
Update 2hello.html
更新 2hello.html
<html lang='en'>
<head>
<meta charset="utf-8" />
<title>Hello</title>
</head>
{% if error %}
{{ error }}
{% endif %}
<body>
Hello
</body>
</html>
