Ruby on rails 钢轨-腹板箱

我想使用WebSocket将数据推送到客户端。我现在不知道如何将数据（从Redis）返回到客户端。谁能给我解释一下吗

sockets\u controller.rb

class SocketsController < WebsocketRails::BaseController
  def create
    send_message :new_event, {:message => 'TEST'}
  end
end

websocket_rails.rb

WebsocketRails.setup do |config|
  config.redis_options = { driver: :ruby }
  config.standalone = false
  config.synchronize = true
end

客户端：

$socket.on('test', function(data) {
console.log(data);
    $scope.events.upshift(data);
if($scope.events.length>50){
$scope.events.length=50;
EventsList =$scope.events;
}
});

routerApp.config(["$socketProvider", function ($socketProvider) {
  $socketProvider.setUrl("http://172.16.20.179:3000/events");
}]);

在客户端，问题如下所示：

GET http://172.16.20.179:3000/socket.io/?
EIO=3&transport=polling&t=1439215071732-9

XMLHttpRequest cannot load http://172.16.20.179:3000/socket.io/?
EIO=3&transport=polling&t=1439215056291-6. No 'Access-Control-Allow-
Origin' header is present on the requested resource. Origin 
'http://localhost:4000' is therefore not allowed access. The response 
had HTTP status code 404.

---

似乎您正在尝试对web套接字使用

Socket.IO

。Rails不支持

Socket.IO

的实现

如果您想了解如何从Angular.JS与websocket rails交互的示例，可以使用以下指南：

---

请提供您的源代码。也添加您的客户端代码。完成后，您可以立即查看是否确定这不可能？好的，您可以设置其他Node.js服务器，如下所示：现在我获得404（未找到）

GET http://172.16.20.179:3000/socket.io/?
EIO=3&transport=polling&t=1439215071732-9

XMLHttpRequest cannot load http://172.16.20.179:3000/socket.io/?
EIO=3&transport=polling&t=1439215056291-6. No 'Access-Control-Allow-
Origin' header is present on the requested resource. Origin 
'http://localhost:4000' is therefore not allowed access. The response 
had HTTP status code 404.