烧瓶和安卓会议

Question

我从我的android应用程序发送HTTP请求到我的烧瓶服务器。最初，我在烧瓶服务器会话创建我的移动客户端的会话入门[“mobile_username”]在我家“http://0.0.0.0:2800/” URL所以当它的用户日志将被更新，以他的名字=无。但问题是，当我把我的登录功能，第二个请求，我检查会话[“mobile_username”]是否返回键错误名为“mobile_username”没有这样的关键。我知道会话不同步，但我需要知道一个解决方案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。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

随着if elif else你的代码的所有水平是相当难追这可能是什么绊倒你，并造成某种逻辑错误在你的代码。我会建议试着简化你的条件逻辑，这样你就可以更容易地知道发生了什么。

例如这样的：

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") 

这里有一个类似的行为非常基本flask session example。 如果没有会话存在，它会打印一个链接到/登录，否则它会打印会话的用户。

你们只具有Android的问题，或也与无移动要求？