我的 python Flask 应用程序在调用 POST 方法时崩溃

Question

这是我的 app.py 代码：from flask import Flaskapp = Flask(__name__)from flask import redirect, render_template as rt, url_for, request, flashimport sqlite3from sqlite3 import Errorcon = sqlite3.connect('database.db')@app.route('/')def nullPage():    return redirect('/home/')@app.route('/home/')def homePage():    return rt('homePage.html')@app.route('/home/signup/', methods=["get", "post"])def signUp():    return rt('signUp.html')@app.route('/home/login/', methods=["get", "post"])def logIn():    return rt('logIn.html')@app.route('/home/logedin/', methods=["get", "post"])def verLogIn():    if request.method == 'post':        passW = request.form['pass']        email = request.form['email']        try:            sql_table(con)            return "Thanks for loging in!"        except Error:            print(Error)            flash(                "An error has occured when talking to the database. Please try again later! Thank you for understanding.",                category='error')def sql_table(con):    cursorObj = con.cursor()    cursorObj.execute(        "CREATE TABLE credentials(id integer PRIMARY KEY, email text, passWord text)"    )    con.commit()    return print("Commited")if __name__ == "__main__":    app.secret_key = 'super secret key'    # app.config['SESSION_TYPE'] = 'filesystem'    # sess.init_app(app)    app.debug = True    app.run()    # print("Bye world")```这是我调用POST方法代码的html代码：    <!-- @format -->    {% extends 'base.html' %} {% block head %}    <div></div>    <link        rel="stylesheet"        href="{{ url_for('static', filename='stylesheets/home.css') }}"    />    {% endblock %} {% block body %}    <header>        <h1>            Hi, welcome to the WebEmailApp        </h1>    </header>    {% endblock %}

Answer 1

你的logedin路线需要返回一些东西。

@app.route('/home/logedin/', methods=["get", "post"])

def verLogIn():

    if request.method == 'post':

        passW = request.form['pass']

        email = request.form['email']

        try:

            sql_table(con)

        except Error:

            print(Error)

            flash(

                "An error has occured when talking to the database. Please try again later! Thank you for understanding.",

                category='error')

    return rt('yourtemplate.html')  # <---- here