javascript - actionCable rails 5.0.1 没有任何反应

Question

这不是我第一次在 rails 中安装 websocket，但是当我在我的 rails 控制台中输入它时，没有任何反应。那应该在 Chrome 控制台中打印“ok”吗？连接功能有效但未收到，此代码有什么问题？我用 redis 替换了 async，没有任何变化。

NotificationsChannel.broadcast_to(User.find_by(email: "test@mail.com"), title: "ok")

登录rails c

[ActionCable] Broadcasting to notifications:Z2lkOi8vZ2FtZS1saWJyYXJ5L1VzZXIvODg1Nw: {:title=>"ok"}

=> 无

我的终端 rails s

[ActionCable] [8857] Finished "/cable/" [WebSocket] for ::1 at 2017-09-

13 11:38:00 +0200
[ActionCable] [8857] NotificationsChannel stopped streaming from notifications:Z2lkOi8vZ2FtZS1saWJyYXJ5L1VzZXIvODg1Nw
Started GET "/cable" for ::1 at 2017-09-13 11:38:00 +0200
Started GET "/cable/" [WebSocket] for ::1 at 2017-09-13 11:38:00 +0200
Successfully upgraded to WebSocket (REQUEST_METHOD: GET, HTTP_CONNECTION: Upgrade, HTTP_UPGRADE: websocket)
  User Load (0.7ms)  SELECT  "users".* FROM "users" WHERE "users"."id" = $1 ORDER BY "users"."id" ASC LIMIT $2  [["id", 8857], ["LIMIT", 1]]
[ActionCable] [8857] Registered connection (Z2lkOi8vZ2FtZS1saWJyYXJ5L1VzZXIvODg1Nw)
[ActionCable] [8857] NotificationsChannel is transmitting the subscription confirmation
[ActionCable] [8857] NotificationsChannel is streaming from notifications:Z2lkOi8vZ2FtZS1saWJyYXJ5L1VzZXIvODg1Nw

这是我的 webSocket 安装:

channel/application_cable/connection.rb

 module ApplicationCable
   class Connection < ActionCable::Connection::Base
    identified_by :current_user

    def connect
      self.current_user = find_verified_user
      logger.add_tags 'ActionCable', current_user.id
    end

    protected

    def find_verified_user 
      if verified_user = env['warden'].user
        verified_user
      else
       reject_unauthorized_connection
      end
    end
  end
end

app/channels/notifications_channel.rb

class NotificationsChannel < ApplicationCable::Channel


  def subscribed
    stream_for current_user
  end

  def unsubscribed
    # Any cleanup needed when channel is unsubscribed
  end
end

app/assets/javascript/channels/notifications.coffee

App.cable.subscriptions.create channel: "NotificationsChannel",
  connected: ->
    console.log "connected"

  received: (data) ->
    console.log "ok"

广播时我的帧中没有任何内容。

Answer 1

我发现了问题 ==> Rails 版本。

如果您是这种情况，只需将 rails 5.0.1 更新到 5.0.2。

并将 cable.yml 中的 async 替换为 redis。