Ruby 浏览器间共享的Sinatra会话数据

我有一个使用Sinatra运行的基本银行应用程序

我已尝试实施会话，以确保访问的每个用户都有不同版本的应用程序。然而，目前，如果我使用两个不同的浏览器访问它，我拥有相同的数据

没有实现后端数据库，但我通过界面添加的数据会在我访问的每个浏览器中保持不变

这是我的

app.rb

：

require 'sinatra/base'
require 'tilt/erb'
require 'require_all'
require_all 'lib'
require 'rufus-scheduler'

class BankingApp < Sinatra::Base

  enable :sessions
  set :session_secret, 'super secret'

  get '/' do
    session[:accounts] = AccountsController.instance
    session[:holders]  = HoldersController.instance
    session[:loans]    = LoansController.instance 
    erb :index
  end

  get '/holders' do
    @holders = session[:holders].store
    erb :holders
  end

  get '/holders_accounts' do
    @holder = session[:holders].find(params[:id].to_i)
    message = session[:accounts].get_accounts_of(params[:id].to_i)
    @accounts = message.accounts
    erb :holders_accounts
  end

  get '/new_holder' do
    erb :new_holder
  end

  post '/new_holder' do
    @message = session[:holders].create(params[:name])
    @holders = session[:holders].store
    erb :holders
  end

  get '/create_account' do
    erb :create_account
  end

  post '/create_account' do
    type = :Current
    id = params[:id].to_i
    @message = session[:accounts].open(type, with: id)
    erb :index
  end

  get '/accounts' do
    @accounts = session[:accounts].store
    erb :accounts
  end

  get '/transactions' do
    message = session[:accounts].get_transactions_of(params[:id].to_i)
    @transactions = message.transactions
    erb :transactions
  end

  get '/deposit' do
    erb :deposit
  end

  post '/deposit' do
    @accounts = session[:accounts].store
    @message = session[:accounts].deposit(params[:amount].to_i, into: params[:id].to_i)
    erb :accounts
  end

  get '/withdraw' do
    erb :withdraw
  end

  post '/withdraw' do
    @accounts = session[:accounts].store
    @message = session[:accounts].withdraw(params[:amount].to_i, from: params[:id].to_i)
    erb :accounts
  end

  get '/transfer' do
    erb :transfer
  end

  post '/transfer' do
    @accounts = session[:accounts].store
    @message = session[:accounts].transfer(params[:amount].to_i, from: params[:donar].to_i, to: params[:recipitent].to_i)
    erb :accounts
  end

  get '/add_holder' do
    erb :add_holder
  end

  post '/add_holder' do
    @accounts = session[:accounts].store
    @message = session[:accounts].add_holder(params[:holder_id].to_i, to: params[:account_id].to_i)
    erb :accounts
  end

  get '/enable_overdraft' do
    erb :enable_overdraft
  end

  post '/enable_overdraft' do
    @accounts = session[:accounts].store
    @message = session[:accounts].activate_overdraft(params[:id].to_i, params[:amount].to_i)
    erb :accounts
  end

  get '/disable_overdraft' do
    erb :disable_overdraft
  end

  post '/disable_overdraft' do
    @accounts = session[:accounts].store
    @message = session[:accounts].deactivate_overdraft(params[:id].to_i)
    erb :accounts
  end

  get '/loans' do
    @loans = session[:loans].store
    erb :loans
  end

  get '/loan_view' do
    message = session[:loans].show(params[:id].to_i)
    @transactions = message.transactions
    erb :loan_view
  end

  get '/new_loan' do
    erb :new_loan
  end

  post '/new_loan' do
    @loans = session[:loans].store
    id = params[:id].to_i
    options = { borrowed: params[:amount].to_i, term: params[:term].to_i, rate: params[:rate].to_f }
    @message = session[:loans].create_loan(id, options)
    erb :loans
  end

  get '/pay_loan' do
    erb :pay_loan
  end

  post '/pay_loan' do
    @message = session[:loans].pay(params[:amount].to_i, off: params[:id].to_i)
    @loans = session[:loans].store
    erb :loans
  end

  # start the server if ruby file executed directly
  run! if app_file == $0
end

需要'sinatra/base'
需要“倾斜/再倾斜”
require“require\u all”
需要所有“lib”
需要“rufus调度程序”
类BankingApp

我对西纳特拉没有太多的经验，所以如果这是我的疏忽，我深表歉意

---

非常感谢您的帮助。

我建议您使用此工具

获取“/注销”操作

会话。清除

结束

---

所以我很确定你的问题的核心是在你的代码中的多个地方。按照

这确保了只能创建一个Klass实例

您已经明确告诉ruby，每个类/模块只允许存在一个副本。我认为那不是你想要的

---

很难准确地推断出您想要实现的目标，但我认为在web应用程序中使用

Singleton

不是正确的解决方案。当你运行应用程序的第二个实例（或者用Heroku的话说是dyno）时，它强加的假设就会崩溃

你是否能够分享更多关于你在这里想要达到的目标，以及你为什么要采用这种方法。这里有很多东西不是Sinatra或Ruby的惯用语言，再加上我们看不到的所有代码（例如控制器的定义），很难有信心地说什么是坏的，什么只是以非标准方式实现的。编辑：刚刚注意到代码在GitHub上，我将在那里浏览：）谢谢您的回复。我使用了单例类，这样我就可以在每个控制器中引用每个控制器的单个实例。让控制器彼此通信。有更有效的方法吗？@robertpulson来自“对于每个传入的请求，都会创建一个新的应用程序类实例”。要共享数据，请使用或使用类实例变量。