Question

我从我的Android应用程序向我的烧瓶服务器发送HTTP请求。最初，我在我的烧瓶服务器中为我的移动客户端创建一个会话条目作为会话[＆＃39; mobile_username＆＃39;] =在我的家中没有“http://0.0.0.0:2800/＆＃39;因此，当用户登录时，URL将更新为他的名字。但问题是，当我第二次请求我的登录功能时，我会检查会话[＆＃39; mobile_username＆＃39;]是否返回键错误，没有这样的键名为＆＃39; mobile_username＆＃39;。我知道会话没有同步但我需要知道如何处理我的移动应用程序和我的烧瓶服务器之间的会话的解决方案。任何帮助都会很棒。

我的代码：

import datetime
from flask import Flask, render_template, request, jsonify, flash, session, redirect, url_for
from flask import Session
from his.Models import db, GuestDetails, BookingDetails, RoomPriceDetails, RoomDetails, DiscountDetails
app = Flask(__name__)
app.config['SQLALCHEMY_DATABASE_URI'] = "sqlite:///HIS.sqlite"


@app.route('/', methods=['POST', 'GET'])
def home():
    if request.method == 'POST':
        if request.form['device'] == 'Mobile':
            try:
                if session['mobile_username'] is not None:
                    return jsonify({'message': 'dashboard'})
                elif session['mobile_username'] is None:
                    return jsonify({'message': "Please login or sign up"})
            except KeyError:
                session['mobile_username'] = None
                print(session['mobile_username'])
                return jsonify({'message': 'home'})
    else:
        try:
            if session['username'] is not None:
                return redirect(url_for('dashboard'))
            elif session['username'] is None:
                return render_template('home.html', message="Please login or sign up")
        except KeyError:
            session['username'] = None
            return render_template('home.html')
        return render_template('home.html')
@app.route('/login', methods=['POST', 'GET'])
def login():
    if request.method == 'POST':
        if request.form['device'] != 'Mobile':
            if session['username'] is None:
                guest_id = request.form['id']
                print(guest_id)
                password = request.form['password']
                records = db.session.query(GuestDetails).all()
                IDs = [records[i].Guest_ID for i in range(len(records))]
                if guest_id in IDs:
                    d_password = db.session.query(GuestDetails).filter_by(Guest_ID=guest_id).first()
                    if password == d_password.Password:
                        session['username'] = d_password.First_name+" "+d_password.Last_name
                        session['user_id'] = d_password.Guest_ID
                        return redirect(url_for('dashboard'))
                    else:
                        return render_template('login.html', message="Password is incorrect")
                else:
                    return render_template('login.html', message="User id does not exist. Please sign up..")
            else:
                return redirect(url_for('dashboard'))
        else:
            if request.method == "POST":
                if session['mobile_username'] is None:
                    print(session['mobile_username'])
                    guest_id = request.form['id']
                    password = request.form['password']
                    records = db.session.query(GuestDetails).all()
                    IDs = [records[i].Guest_ID for i in range(len(records))]
                    if guest_id in IDs:
                        d_password = db.session.query(GuestDetails).filter_by(Guest_ID=guest_id).first()
                        if password == d_password.Password:
                            session['mobile_username'] = d_password.First_name + " " + d_password.Last_name
                            session['mobile_user_id'] = d_password.Guest_ID
                            return jsonify({'message': 'Successfully logged in', 'name': session['mobile_username']})
                        else:
                            return jsonify({'message': 'Password is incorrect'})
                    else:
                        return jsonify({'message': "User id does not exist. Please sign up.."})
                else:
                    return jsonify({'message': "dashboard"})
    else:
        return render_template('login.html')

if __name__ == '__main__':
    app.secret_key = 'super secret key'
    app.config['SESSION_TYPE'] = 'redis'
    db.init_app(app)
    with app.app_context():
        db.create_all()
    app.run(host="0.0.0.0", port=2800, debug=True, threaded=True)

Answer 1

对于if elif else的所有级别，您的代码很难遵循，这可能会导致您绊倒并导致代码中出现某种逻辑错误。我建议你尝试简化你的条件逻辑，这样你就可以更轻松地告诉你什么了。

例如：

if request.form['device'] == 'Mobile':
        try:
            if session['mobile_username'] is not None:
                return jsonify({'message': 'dashboard'})
            elif session['mobile_username'] is None:
                return jsonify({'message': "Please login or sign up"})
        except KeyError:
            session['mobile_username'] = None
            print(session['mobile_username'])
            return jsonify({'message': 'home'})
else:
    try:
        if session['username'] is not None:
            return redirect(url_for('dashboard'))
        elif session['username'] is None:
            return render_template('home.html', message="Please login or sign up")
    except KeyError:
        session['username'] = None
        return render_template('home.html')
    return render_template('home.html')

可以简化为：

if request.form['device'] == 'Mobile':
    if 'mobile_username' in session:
        return jsonify({'message': 'dashboard'})
    return jsonify({'message': "Please login or sign up"})
else:
    if 'username' in session:
        return redirect(url_for('dashboard'))
    return render_template('home.html', message="Please login or sign up")

这是一个非常基本flask session example的行为。如果不存在会话，则会打印指向/ login的链接，否则会打印会话用户。

你只是遇到了android的问题，还是没有移动请求？

烧瓶和android会话

1 个答案: