我正在尝试使用套接字io,因此我可以动态更新网站上的数据:
编辑:更新代码
在app.js中:
var express = require('express');
var app = express();
var routes = require('./routes/index');
app.use('/', routes);
var server = require('http').createServer(app);
var io = require('socket.io')(server);
io.on('connection', function(socket){
socket.emit('news', {hello: 'world'});
socket.on('my other event', function (data) {
console.log(data);
});
});
server.listen(app.get('port'), function(){
console.log('Express listening on port ' + app.get('port'));
});
在index.ejs中:
<script src="/socket.io/socket.io.js"></script>
<script>
var socket = io.connect('http://localhost:80');
socket.on('news', function(data) {
socket.emit('my other event', {my: 'data'});
});
</script>
页面正确加载,但socketio脚本什么都不做。我试图让代码尽可能简单。
快速侦听端口80输出到控制台正常。
在www。
#!/usr/bin/env node
/**
* Module dependencies.
*/
var app = require('../app');
var debug = require('debug')('untitled:server');
var http = require('http');
/**
* Get port from environment and store in Express.
*/
var port = normalizePort(process.env.PORT || '3000');
app.set('port', port);
/**
* Create HTTP server.
*/
var server = require('http').Server(app);
//var io = require('socket.io')(server);
/**
* Listen on provided port, on all network interfaces.
*/
server.listen(port);
server.on('error', onError);
server.on('listening', onListening);
/**
* Normalize a port into a number, string, or false.
*/
function normalizePort(val) {
var port = parseInt(val, 10);
if (isNaN(port)) {
// named pipe
return val;
}
if (port >= 0) {
// port number
return port;
}
return false;
}
/**
* Event listener for HTTP server "error" event.
*/
function onError(error) {
if (error.syscall !== 'listen') {
throw error;
}
var bind = typeof port === 'string'
? 'Pipe ' + port
: 'Port ' + port;
// handle specific listen errors with friendly messages
switch (error.code) {
case 'EACCES':
console.error(bind + ' requires elevated privileges');
process.exit(1);
break;
case 'EADDRINUSE':
console.error(bind + ' is already in use');
process.exit(1);
break;
default:
throw error;
}
}
/**
* Event listener for HTTP server "listening" event.
*/
function onListening() {
var addr = server.address();
var bind = typeof addr === 'string'
? 'pipe ' + addr
: 'port ' + addr.port;
debug('Listening on ' + bind);
}
答案 0 :(得分:2)
不太确定你的意思是什么&#34;套接字脚本什么都不做&#34;因为你并没有在客户端做任何事情!无论如何,从发布的代码。
编辑:
此代码适用于客户端和服务器。
server.js
var express = require('express');
var app = express();
var http = require('http').Server(app);
var io = require('socket.io')(http);
app.set('view engine', 'jade');
app.set('views', './views');
app.get('/', function (req, res) {
res.render('index');
});
io.on('connection', function (socket) {
console.log('connected via server');
});
http.listen(3000, function () {
console.log('app listening on port 3000');
});
index.jade(你可以使用ejs或html)
html
head
script(src="/socket.io/socket.io.js")
script.
var socket = io.connect();
socket.on('connect', function() {
console.log('greetings from client');
});
body
h1 hello world
您也可以手动尝试自己提供socket.io-client软件包。
答案 1 :(得分:1)