Flask 405 方法不允许答案

【问题标题】：Flask 405 Method Not AllowedFlask 405 方法不允许
【发布时间】：2020-06-19 05:13:58
【问题描述】：

单击提交按钮后，我遇到了标题中的问题，当我将路由从应用程序分隔到视图时，问题开始显示，当我转到 localhost:5000/register/ 时，一切都很好，但是当我填写表格并单击提交时我有问题 405

app.py

from flask import Flask,render_template,request,redirect,abort
app = Flask(__name__)
import views

app.add_url_rule('/', view_func=views.index)
app.add_url_rule('/login/', view_func=views.login)
app.add_url_rule('/register/', view_func=views.register)

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

views.py

from flask import Flask,render_template,request,redirect,abort
app = Flask(__name__)

@app.route('/register/', methods=["GET","POST"])
def register():
    if request.method == "POST":
        req = request.form
        email = req.get("email")
        password = req["password"]
        phonenumber = request.form["phonenumber"]
        if email == "" or password == "" or phonenumber=="":
            feedback="Please fill the form"
            alert = "fail"
        else:
            feedback="Account created!"
            alert = "good"
        return render_template('register.html',feedback=feedback,alert=alert)
    return render_template('register.html')

@app.route('/')
def index():
    print("CIAO")
    return render_template('base.html')

和形式

<form class="" method="POST" action="{{ url_for('register') }}">
    <input type="email" name="email" placeholder="Email">
    <input type="password" name="password" placeholder="password" minlength="8">
    <input type="tel" name="phonenumber" placeholder="Numer Telefonu" minlength="8" maxlength="9">
    <input type="submit" name="submit">
</form>

【问题讨论】：

标签： python forms flask post get

【解决方案1】：

Flask 没有找到 /register/ 端点的 POST 方法处理程序。你正在混合add_url_rule 和@route。如果你想要可插入的视图，你只需要前者。

我建议在这里使用 MethodView 方法。每个模板都有一个单独的类，并在其中定义get() 和post() 方法。

app.py：

from flask import Flask
from views import Register, Login, Index

app = Flask(__name__)

app.add_url_rule('/', view_func=Index.as_view("index"))
app.add_url_rule('/login/', view_func=Login.as_view("login"))
app.add_url_rule('/register/', view_func=Register.as_view("register"))

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

views.py：

from flask import Flask,render_template,request,redirect,abort
from flask.views import MethodView


class Register(MethodView):
    def get(self):
        return render_template('register.html')

    def post(self):
        req = request.form
        email = req.get("email")
        password = req["password"]
        phonenumber = request.form["phonenumber"]
        if email == "" or password == "" or phonenumber == "":
            feedback = "Please fill the form"
            alert = "fail"
        else:
            feedback = "Account created!"
            alert = "good"
        return render_template('register.html', feedback=feedback, alert=alert)


class Index(MethodView):
    def get(self):
        print("CIAO")
        return render_template('index.html')


class Login(MethodView):
    def get(self):
        return render_template('login.html')

【讨论】：