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在Rails中實(shí)現(xiàn)和使用WebSockets進(jìn)行實(shí)時(shí)通信可以通過Action Cable來實(shí)現(xiàn)。Action Cable是Rails的一個(gè)內(nèi)置框架,它可以讓你在Rails應(yīng)用中輕松地實(shí)現(xiàn)實(shí)時(shí)通信功能。
下面是一個(gè)簡單的步驟來實(shí)現(xiàn)和使用WebSockets進(jìn)行實(shí)時(shí)通信:
gem 'actioncable', '~> 5.0'
然后運(yùn)行bundle install
來安裝gem。
rails generate channel Chat
這將生成一個(gè)名為ChatChannel的channel文件以及相關(guān)的JavaScript和樣式文件。
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
來創(chuàng)建一個(gè)WebSocket連接并實(shí)時(shí)接收數(shù)據(jù):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});
}
});
這樣,你就可以在Rails應(yīng)用中實(shí)現(xiàn)和使用WebSockets進(jìn)行實(shí)時(shí)通信了。希望以上步驟對你有所幫助!
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