在Rails中实现和使用WebSockets进行实时通信可以通过Action Cable来实现。Action Cable是Rails的一个内置框架,它可以让你在Rails应用中轻松地实现实时通信功能。
下面是一个简单的步骤来实现和使用WebSockets进行实时通信:
gem 'actioncable', '~> 5.0'
然后运行bundle install
来安装gem。
rails generate channel Chat
这将生成一个名为ChatChannel的channel文件以及相关的JavaScript和样式文件。
class ChatChannel < ApplicationCable::Channel
def subscribed
stream_from "chat_channel"
end
def receive(data)
ActionCable.server.broadcast("chat_channel", data)
end
def unsubscribed
# Any cleanup needed when channel is unsubscribed
end
end
App.cable.subscriptions.create
来创建一个WebSocket连接并实时接收数据:App.chat = App.cable.subscriptions.create("ChatChannel", {
connected: function() {
// Called when the subscription is ready for use on the server
},
disconnected: function() {
// Called when the subscription has been terminated by the server
},
received: function(data) {
// Called when there's incoming data on the websocket for this channel
},
send_message: function(message) {
this.perform('receive', {message: message});
}
});
这样,你就可以在Rails应用中实现和使用WebSockets进行实时通信了。希望以上步骤对你有所帮助!
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