动作电缆没有使用rails 5

Question

我是Rails 5的初学者，我正试图在我的应用中实现web套接字。我试图首先复制并运行测试应用程序，然后发现它不工作，因为它不传输和接收数据。永远不会调用received: (data) ->。我也观察到，它从来没有与我的redis服务器连接（我使用brew进行安装）。我粘贴下面的所有代码。提前致谢。

//room.coffee 

App.room = App.cable.subscriptions.create "RoomChannel", 
connected: -> 
# Called when the subscription is ready for use on the server 
disconnected: -> 
# Called when the subscription has been terminated by the server 

received: (data) -> 
alert(data['message']) 
speak: (message) -> 
@perform 'speak', message: message 

room_chanel.rb

# Be sure to restart your server when you modify this file. Action 
Cable runs in a loop that does not support auto reloading. 
class RoomChannel < ApplicationCable::Channel 
def subscribed 
stream_from "room_channel" 
end 

def unsubscribed 
    # Any cleanup needed when channel is unsubscribed 
end 

def speak(data) 
    ActionCable.server.broadcast "room_channel", message: data['message'] 
end 
end 

的Gemfile

source 'https://rubygems.org' 

git_source(:github) do |repo_name| 
    repo_name = "#{repo_name}/#{repo_name}" unless repo_name.include?("/") 
    "https://github.com/#{repo_name}.git" 
end 
# Bundle edge Rails instead: gem 'rails', github: 'rails/rails' 
gem 'rails', '~> 5.0.2' 

# Use postgresql as the database for Active Record 
gem 'sqlite3' 
# Use Puma as the app server 
gem 'puma' 
# Use SCSS for stylesheets 
gem 'sass-rails', '~> 5.0' 
# Use Uglifier as compressor for JavaScript assets 
gem 'uglifier', '>= 1.3.0' 
# Use CoffeeScript for .coffee assets and views 
gem 'coffee-rails', '~> 4.1.0' 
# See https://github.com/rails/execjs#readme for more supported runtimes 
# gem 'therubyracer', platforms: :ruby 

gem 'redis' 

# Use jquery as the JavaScript library 
gem 'jquery-rails' 
# Turbolinks makes navigating your web application faster. Read more: https://github.com/turbolinks/turbolinks 
gem 'turbolinks', '~> 5.x' 
# Build JSON APIs with ease. Read more: https://github.com/rails/jbuilder 
gem 'jbuilder', '~> 2.0' 
# Use Redis adapter to run Action Cable in production 
# gem 'redis', '~> 3.0' 
# Use ActiveModel has_secure_password 
# gem 'bcrypt', '~> 3.1.7' 

# Use Capistrano for deployment 
# gem 'capistrano-rails', group: :development 

group :development, :test do 
    # Call 'byebug' anywhere in the code to stop execution and get a debugger console 
    gem 'byebug', platform: :mri 
end 

group :development do 
    # Access an IRB console on exception pages or by using <%= console %> anywhere in the code. 
    gem 'web-console', '>= 3.3.0' 
    gem 'listen', '~> 3.0.5' 
    # Spring speeds up development by keeping your application running in the background. Read more: https://github.com/rails/spring 
    gem 'spring' 
    gem 'spring-watcher-listen', '~> 2.0.0' 
end 

# Windows does not include zoneinfo files, so bundle the tzinfo-data gem 
gem 'tzinfo-data', platforms: [:mingw, :mswin, :x64_mingw, :jruby] 

cable.yml

# Action Cable uses Redis by default to administer connections, channels, and sending/receiving messages over the WebSocket. 
production: 
    adapter: redis 
    url: redis://localhost:6379/1 

development: 
    adapter: redis 
    url: redis://localhost:6379/1 

test: 
    adapter: redis 
    url: redis://localhost:6379/1 

cable.coffee

# Action Cable provides the framework to deal with WebSockets in Rails. 
    # You can generate new channels where WebSocket features live using the rails generate channel command. 
    # 
    # Turn on the cable connection by removing the comments after the require statements (and ensure it's also on in config/routes.rb). 
    # 
    #= require action_cable 
    #= require_self 
    #= require_tree ./channels 
    # 
    @App ||= {} 
    App.cable = ActionCable.createConsumer() 

Answer 1

你可以尝试使用作用电缆没有Redis的（因为Redis的要求不严格的作用电缆）：

development: 
    adapter: async 

test: 
    adapter: async 

production: 
    adapter: redis 
    url: redis://localhost:6379/1 

但是这可能不是你的问题的由来。您的room.coffee缺少一些speak-调用代码。加入room.coffee是这样的：

$ -> 
    $('#send_form').submit (event)-> 
    App.room.speak event.currentTarget['message'].value 
    event.currentTarget['message'].value = "" 
    event.preventDefault() 
    false 

这里有一个模板：