Question

我正在玩ActionCable，这是一个非常基本的设置。

我在客户端这个：

get_k_t

在服务器上

App.chat = App.cable.subscriptions.create "ChatChannel",
  subscribed: ->
    console.log 'subscribed'
  test: ->
    @perform("test")

在JS控制台上我可以看到：

class ChatChannel < AC..::Channel
  def subscribed
    Rails.logger.info "This is never printed in the logs"
  end
  def test
    Rails.logger.info "This is never printed in the logs"
  end
end

在服务器日志中，我看到：

[ActionCable] Opening WebSocket, current state is null, subprotocols: actioncable-v1-json,actioncable-unsupported 1494360634092
[ActionCable] ConnectionMonitor started. pollInterval = 3000 ms 1494360634096
[ActionCable] WebSocket onopen event, using 'actioncable-v1-json' subprotocol 1494360634733
[ActionCable] ConnectionMonitor recorded connect 1494360634734

如果我从服务器发送广播消息，则它从未在客户端上收到过。如果我尝试从客户端执行操作，则返回false并且控制台上没有任何内容。

网络标签显示：

Started GET "/cable" for 127.0.0.1 at 2017-05-09 15:10:34 -0500
Started GET "/cable/" [WebSocket] for 127.0.0.1 at 09/05/2017 03:10 PM
Successfully upgraded to WebSocket (REQUEST_METHOD: GET, HTTP_CONNECTION: Upgrade, HTTP_UPGRADE: websocket)
Registered connection (Z2lkOi8vcHJvcGhvL1VzZXIvMg)

我没有使用redis，使用Request URL:ws://0.0.0.0:3000/cable Request Method:GET Status Code:101 Switching Protocols (with a green status icon)启动服务器

rails server

Answer 1

试一试。

App.chat = App.cable.subscriptions.create "ChatChannel",
  # subscribed: ->
  #   console.log 'subscribed'
  # test: ->
  #   @perform("test")

  connected: ->
    @perform("test")

ActionCable没有在javascript中执行订阅

1 个答案: