Node.js 将Socket.io与Heroku一起使用
Javascript:Node.js 将Socket.io与Heroku一起使用,node.js,heroku,socket.io,arduino,Node.js,Heroku,Socket.io,Arduino,Javascript: var express = require('express') , app = express() , server = require('http').createServer(app) , io = require('../../lib/socket.io').listen(server) , dgram = require('dgram'); server.listen(5000); var client = dgram.cre
var express = require('express')
, app = express()
, server = require('http').createServer(app)
, io = require('../../lib/socket.io').listen(server)
, dgram = require('dgram');
server.listen(5000);
var client = dgram.createSocket('udp4');
var message = new Buffer("100 101 102");
app.use(express.static(__dirname + '/'));
io.sockets.on('connection', function(socket) {
console.log("Server Connected");
socket.on('message', function(data) {
console.log(data);
client.send(message, 0, message.length, 8888, '192.168.1.1')
});
});
相关HTML:
$(window).load(function(){
socket = io.connect('/');
$(window).click(function() {
sendData(100, 101, 102);
});
});
function sendData(redVal, greenVal, blueVal) {
socket.emit('message', redVal + " " + greenVal + " " + blueVal);
}
package.json:
{
"name": "LEDControl",
"description": "First attempt at mobile node.js and socket.io arduino control",
"version": "0.0.1-6",
"dependencies": {
"express": "3.x",
"socket.io": "~0.9.16"
},
"engines": {
"node": "0.10.x",
"npm": "1.3.x"
}
}
我正在尝试通过socket.io将udp数据包发送到带有以太网屏蔽的Arduino。我在Heroku上运行这个。它在本地主机上运行良好,但当我尝试在Heroku上运行它时,它总是崩溃。问题似乎出在socket.io上。Websockets是Heroku的一项新功能,因此很难找到更多关于它的信息。我也在Nodejitsu上试过,得到了类似的结果。有人知道我做错了什么吗?现在只要我点击屏幕,它就会发送“100101102”。问题可能在于Arduino以太网屏蔽的局限性,我不确定。您是否为您的应用程序启用了WebSocket(heroku实验室:enable WebSocket-一个应用程序名)?是的,WebSocket已启用。