套接字IO从URL中获取数据

问候，套接字IO从URL中获取数据

我试图根据从URL获得的数据向用户广播消息。从URL返回的数据将是json。我对node.js和socket.io非常陌生，并且安装了node.js和socket.io。我只是不能100％确定如何获取我需要通过URL向客户端广播的数据。我还需要其他什么？

我的服务器上的文件server.js

var http = require('http'), 
io = require('socket.io'), 
// Do I need another require here?  

server = http.createServer(function(req, res){ 
// your normal server code 
res.writeHead(200, {'Content-Type': 'text/html'}); 
//res.end('<h1>Hello world</h1>'); 
}); 
server.listen(8080); 

// socket.io 
var socket = io.listen(server); 
socket.on('connection', function(client){ 

    //I'm not sure where/how to get data from a URL 
    function getMessages() { 

    var request = messageClient.request("GET", "json.php", {"host": "myurl.com"}); 

    // Is this how I send the data to the client? 
    socket.broadcast(request); 

    //request.end(); 
    } 

    setInterval(getMessages, 1000); 

    client.on('message', function(){ … }) 
    client.on('disconnect', function(){ … }) 

});

我的客户

// Load jQuery too 
<script src="http://pathtojquery.js"></script> 
<script src="http://{node_server_url}/socket.io/socket.io.js"></script> 
<script> 
var socket = new io.Socket({node_server_url}); 
socket.connect(); 
socket.on('connect', function(){ … }) 
socket.on('message', function(data){ 
    // Use jquery to handle the json data here and display message to the clients 
    // I can handle this part as long as 'data' is json 

}) 
socket.on('disconnect', function(){ … }) 
</script>

来源

2011-04-28 Don Jones

function getMessages() { 
    http.get({ host: 'myurl.com', port: 80, path: 'json.php' }, function(response) { 
     var data = ""; 
     response.on('data', function(chunk) { 
      data += chunk; 
     }); 
     response.on('end', function() { 
      socket.broadcast(JSON.parse(data)); 
     }); 
    }); 
}

HTTP module documentation

来源

2011-04-28 15:31:05 mak

套接字IO从URL中获取数据

回答

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