我正在关注关于烧瓶的教程。 （第一次使用它）所以我建立了他的类似Blog的小型迷你网站，其中包含用于注册的表格。
当我运行它时，我得到了很好的html，看起来它应该对我有用。我不知道为什么它不起作用。甚至没有向服务器发送请求，就好像我根本没有单击按钮一样。
#main.py
from flask import Flask, render_template, url_for, flash, redirect
from forms import RegistrationForm, LoginForm
app = Flask(__name__)
app.config['SECRET_KEY'] = 'Secret Key'
@app.route("/")
@app.route("/home")
def hello():
return render_template('home.html', posts=posts)
@app.route("/about")
def about():
return render_template('about.html')
#THIS IS THE FORM
@app.route("/register", methods=['GET', 'POST'])
def register():
form = RegistrationForm()
if form.validate_on_submit():
flash(f'Account created for {form.username.data}!', 'success')
return redirect(url_for('home'))
return render_template('register.html', title='Register', form=form)
@app.route("/login")
def login():
form = LoginForm()
return render_template('login.html', title='Log In', form=form)
if __name__ == '__main__':
app.run(debug=True)
<!-- register.html -->
{% extends "layout.html" %}
{% block content %}
<div class='content-section'>
<from method="POST" action="">
{{ form.hidden_tag() }}
<fieldset class='form-group'>
<legend class='border-bottom mb-4'>Join Today</legend>
<div class="form-group">
{{ form.username.label(class="form-control-label") }}
{{ form.username(class="form-control form-control-lg") }}
</div>
<div class="form-group">
{{ form.email.label(class="form-control-label") }}
{{ form.email(class="form-control form-control-lg") }}
</div>
<div class="form-group">
{{ form.password.label(class="form-control-label") }}
{{ form.password(class="form-control form-control-lg") }}
</div>
<div class="form-group">
{{ form.confirm_password.label(class="form-control-label") }}
{{ form.confirm_password(class="form-control form-control-lg") }}
</div>
</fieldset>
<div class="form-group">
{{ form.submit(class="btn btn-outline-info") }}
</div>
</from>
</div>
<div class ="border-top pt-3">
<small class="text-muted">
Alreade Have An Account? <a class="ml-2" href="{{ url_for('login') }}">Sign In</a>
</small>
</div>
{% endblock content %}
#forms.py
from flask_wtf import FlaskForm
from wtforms import StringField, PasswordField, SubmitField, BooleanField
from wtforms.validators import DataRequired, Length, Email, EqualTo
class RegistrationForm(FlaskForm):
username = StringField('Username',
validators=[DataRequired()])
email = StringField('Email', validators=[DataRequired(), Email()])
password = PasswordField('Password', validators=[DataRequired()])
confirm_password = PasswordField('Confirm Password', validators=[DataRequired(), EqualTo('password')])
submit = SubmitField('Sign Up')
我得到的结果如下：
<!-- Sourcecode Browser -->
<body>
<header class="site-header">
<nav class="navbar navbar-expand-md navbar-dark bg-steel fixed-top">
<div class="container">
<a class="navbar-brand mr-4" href="/">Flask Blog</a>
<button class="navbar-toggler" type="button" data-toggle="collapse" data-target="#navbarToggle" aria-controls="navbarToggle" aria-expanded="false" aria-label="Toggle navigation">
<span class="navbar-toggler-icon"></span>
</button>
<div class="collapse navbar-collapse" id="navbarToggle">
<div class="navbar-nav mr-auto">
<a class="nav-item nav-link" href="/">Home</a>
<a class="nav-item nav-link" href="/about">About</a>
</div>
<!-- Navbar Right Side -->
<div class="navbar-nav">
<a class="nav-item nav-link" href="/login">Login</a>
<a class="nav-item nav-link" href="/register">Register</a>
</div>
</div>
</div>
</nav>
</header>
<main role="main" class="container">
<div class="row">
<div class="col-md-8">
<div class='content-section'>
<from method="POST" action="">
<input id="csrf_token" name="csrf_token" type="hidden" value="Huge Secret">
<fieldset class='form-group'>
<legend class='border-bottom mb-4'>Join Today</legend>
<div class="form-group">
<label class="form-control-label" for="username">Username</label>
<input class="form-control form-control-lg" id="username" name="username" required type="text" value="">
</div>
<div class="form-group">
<label class="form-control-label" for="email">Email</label>
<input class="form-control form-control-lg" id="email" name="email" required type="text" value="">
</div>
<div class="form-group">
<label class="form-control-label" for="password">Password</label>
<input class="form-control form-control-lg" id="password" name="password" required type="password" value="">
</div>
<div class="form-group">
<label class="form-control-label" for="confirm_password">Confirm Password</label>
<input class="form-control form-control-lg" id="confirm_password" name="confirm_password" required type="password" value="">
</div>
</fieldset>
<div class="form-group">
<input class="btn btn-outline-info" id="submit" name="submit" type="submit" value="Sign Up">
</div>
</from>
</div>
<div class ="border-top pt-3">
<small class="text-muted">
Alreade Have An Account? <a class="ml-2" href="/login">Sign In</a>
</small>
</div>
</div>
<div class="col-md-4">
<!-- SIDEBAR -->
</div>
</div>
</main>
<!-- Optional JavaScript -->
<!-- jQuery first, then Popper.js, then Bootstrap JS -->
<script src="https://code.jquery.com/jquery-3.3.1.slim.min.js" integrity="sha384-q8i/X+965DzO0rT7abK41JStQIAqVgRVzpbzo5smXKp4YfRvH+8abtTE1Pi6jizo" crossorigin="anonymous"></script>
<script src="https://cdnjs.cloudflare.com/ajax/libs/popper.js/1.14.7/umd/popper.min.js" integrity="sha384-UO2eT0CpHqdSJQ6hJty5KVphtPhzWj9WO1clHTMGa3JDZwrnQq4sF86dIHNDz0W1" crossorigin="anonymous"></script>
<script src="https://stackpath.bootstrapcdn.com/bootstrap/4.3.1/js/bootstrap.min.js" integrity="sha384-JjSmVgyd0p3pXB1rRibZUAYoIIy6OrQ6VrjIEaFf/nJGzIxFDsf4x0xIM+B07jRM" crossorigin="anonymous"></script>
</body>
</html>
首先，我认为这是因为action参数对于表单来说是空的，所以我尝试更改它。没事 我删除了所有验证器，但是也没有执行任何操作。 我在控制台中看到没有对服务器的请求。我单击提交，实际上什么也没发生。我尝试了镀铬和边缘。 我在做什么错了？
答案 0 :(得分：3)
您在<from method="POST" action="">中有一个错字-应该是<form ...>（而action=""是隐式的，所以只有<form method="POST">）。