在我的应用程序中,我需要连接两个socket.io节点应用程序。使用socket.io-client我们可以这样做。但我不知道socket.io-client如何工作以及在哪里包含它。
第一个节点应用程序
var express = require('express')
, http = require('http');
var app = express();
app.use(function (req, res) {
app.use(express.static(__dirname + '/public'));
});
var server = http.createServer(app);
var io = require('socket.io').listen(server);
server.listen(3000);
io.sockets.on('connection',function(socket){
socket.on('eventFiredInClient',function(data){
socket.emit('secondNodeAppln',data);// i need to get this event in my 2nd node application how can i do this by using socket.io-client
});
});
第二节点应用程序
var express=require('express');
var http=require('http');
var app=express();
app.configure(function(){
app.use(express.static(__dirname + '/public'));
});
var server = http.createServer(app);
var serverAddress = '127.0.0.1';
var serverPort = 3000; //first node appln port
var clientio = require('socket.io-client');
var socket = clientio.connect(serverAddress , { port: serverPort });
socket.on('connect', function(){
console.log('connected');
});
socket.on('disconnect', function(){
console.log('disconnected');
});
var io = require('socket.io').listen(server);
server.listen(6509);
//here i need to get the 'secondNodeAppln' event raised in first node application.How can i do this.
答案 0 :(得分:2)
您需要在第一个应用中创建一个socket.io客户端:
var io = require('socket.io').listen(server); // this is the socket.io server
var clientio = require('socket.io-client'); // this is the socket.io client
var client = clientio.connect(...); // connect to second app
io.sockets.on('connection',function(socket) {
socket.on('eventFiredInClient',function(data) {
client.emit('secondNodeAppln', data); // send it to your second app
});
});
在你的第二个应用程序中,只需听取这些事件:
io.sockets.on('connection', function (socket) {
socket.on('secondNodeAppln', function(data) {
...
});
});
有一些竞争条件,因为上面的代码在将事件传递给它之前不等待客户端套接字上的connect
事件。
编辑有关独立演示,请参阅this gist。将这三个文件保存到目录中,启动服务器:
node serverserver &
node clientserver
在浏览器中打开http://localhost:3012
。