Python 烧瓶404 eror：这与crsf代币有关吗？

我不熟悉烧瓶，也不太会跟着烧瓶走

我的版本现在正在AWS EC2上运行

其余的工作正常-如果您使用Id='susan'和pawwword='cat'登录，您可以看到索引页的内容。但当我尝试注册新用户时，它将返回如下错误：

http://34.220.113.126/%22%20method=%22post?csrf_token=IjQzYmU3ZmRmMDc1ZGZkMmI5MTA3NjcxODk4Zjc3NzJlY2QzMjQxYzIi.XNm9Lg.kdZyKkjrhqa2iTnTdtuyXHAylqE&username=test&email=test%40gmail.com&password=test&password2=test&submit=Register

app/init.py

app/forms.py

from flask_wtf import FlaskForm
from wtforms import StringField, PasswordField, BooleanField, SubmitField
from wtforms.validators import DataRequired, ValidationError, Email, EqualTo
from app.models import User

class LoginForm(FlaskForm):
    username = StringField('Username', validators=[DataRequired()])
    password = PasswordField('Password', validators=[DataRequired()])
    remember_me = BooleanField('Remember Me')
    submit = SubmitField('Sign In')


class RegistrationForm(FlaskForm):
    username = StringField('Username', validators=[DataRequired()])
    email = StringField('Email', validators=[DataRequired(), Email()])
    password = PasswordField('Password', validators=[DataRequired()])
    password2 = PasswordField('Repeate Password',
                              validators=[DataRequired(), EqualTo('password')])
    submit = SubmitField('Register')

    def validate_username(self, username):
        user = User.query.filter_by(username=username.data).first()
        if user is not None:
            raise ValidationError("Please use a different username!")

    def validate_email(self, email):
        user = User.query.filter_by(email=email.data).first()
        if user is not None:
            raise ValidationError("Please use a different email!")

app/models.py

from datetime import datetime
from werkzeug.security import generate_password_hash, check_password_hash
from app import db
from flask_login import UserMixin
from app import login

class User(UserMixin, db.Model):
    id = db.Column(db.Integer, primary_key=True)
    username = db.Column(db.String(64), index=True, unique=True)
    email = db.Column(db.String(120), index=True, unique=True)
    password_hash = db.Column(db.String(128))
    posts = db.relationship('Post', backref="author", lazy="dynamic")

    def __repr__(self):
        return '<User {}>'.format(self.username)

    def set_password(self, password):
        self.password_hash = generate_password_hash(password)
        print("user password is set!")

    def check_password(self, password):
        return check_password_hash(self.password_hash, password)

class Post(db.Model):
    id = db.Column(db.Integer, primary_key=True)
    body = db.Column(db.String(140))
    timestamp = db.Column(db.DateTime, index=True, default=datetime.utcnow)
    user_id = db.Column(db.Integer, db.ForeignKey('user.id'))

    def __repr__(self):
        return '<Post {}>'.format(self.body)


@login.user_loader
def load_user(id):
    return User.query.get(int(id))

---

如何解决此问题并使注册生效？谢谢

您的表单操作不可接受。它必须：

…具有一个有效的非空URL值，该URL可能由空格包围

---

因此，在您的HTML表单中，删除操作。

如果没有代码，我们将无法诊断问题，因此请将代码添加到您的帖子中。谢谢@dylanj.nz。这解决了问题。但是你怎么知道我的HTML中有一个动作呢？我没有共享html文件，还是共享了？我单击了链接并检查了html。不过，如果您在问题中包含所有必要的代码，这将在将来有所帮助！

from datetime import datetime
from werkzeug.security import generate_password_hash, check_password_hash
from app import db
from flask_login import UserMixin
from app import login

class User(UserMixin, db.Model):
    id = db.Column(db.Integer, primary_key=True)
    username = db.Column(db.String(64), index=True, unique=True)
    email = db.Column(db.String(120), index=True, unique=True)
    password_hash = db.Column(db.String(128))
    posts = db.relationship('Post', backref="author", lazy="dynamic")

    def __repr__(self):
        return '<User {}>'.format(self.username)

    def set_password(self, password):
        self.password_hash = generate_password_hash(password)
        print("user password is set!")

    def check_password(self, password):
        return check_password_hash(self.password_hash, password)

class Post(db.Model):
    id = db.Column(db.Integer, primary_key=True)
    body = db.Column(db.String(140))
    timestamp = db.Column(db.DateTime, index=True, default=datetime.utcnow)
    user_id = db.Column(db.Integer, db.ForeignKey('user.id'))

    def __repr__(self):
        return '<Post {}>'.format(self.body)


@login.user_loader
def load_user(id):
    return User.query.get(int(id))

from flask import render_template, flash, redirect, url_for, request
from flask_login import login_user, logout_user, current_user, login_required
from werkzeug.urls import url_parse
from app import app, db
from app.forms import LoginForm, RegistrationForm
from app.models import User


@app.route('/')
@app.route('/index')
@login_required
def index():
    posts = [
        {
            'author': {'username': 'John'},
            'body': 'Beautiful day in Portland!'
        },
        {
            'author': {'username': 'Susan'},
            'body': 'The Avengers movie was so cool!'
        }
    ]
    return render_template('index.html', title='Home', posts=posts)


@app.route('/login', methods=['GET', 'POST'])
def login():
    if current_user.is_authenticated:
        return redirect(url_for('index'))
    form = LoginForm()
    if form.validate_on_submit():
        user = User.query.filter_by(username=form.username.data).first()
        if user is None or not user.check_password(form.password.data):
            flash('Invalid username or password')
            return redirect(url_for('login'))
        login_user(user, remember=form.remember_me.data)
        next_page = request.args.get('next')
        if not next_page or url_parse(next_page).netloc != '':
            next_page = url_for('index')
        return redirect(next_page)
    return render_template('login.html', title='Sign In', form=form)


@app.route('/logout')
def logout():
    logout_user()
    return redirect(url_for('index'))


@app.route('/register', methods=['GET', 'POST'])
def register():
    if current_user.is_authenticated:
        return redirect(url_for('index'))
    form = RegistrationForm()
    if form.validate_on_submit():
        user = User(username=form.username.data, email=form.email.data)
        user.set_password(form.password.data)
        db.session.add(user)
        db.session.commit()
        flash('Congratulations, you are now a registered user!')
        return redirect(url_for('login'))
    return render_template('register.html', title='Register', form=form)