Socket.io不与服务器上的在线html页面通信

时间:2014-12-11 22:17:23

标签: linux node.js socket.io client-server

我的node.js服务器在本地计算机上运行并进行通信(windows)。但是当我复制我的项目并尝试在我的在线服务器(Linux)上运行它时,socket.io不会在服务器之间进行通信(html页面)。我没有收到任何错误,socket.io安装在服务器上。 目录是/var/www/lynx.html

如何指示服务器与客户端通信,以及客户端与服务器连接。我试图将http:\\localhost更改为各种类型的内容,例如实际的IP地址和本地127.0.0.1

以下是我的代码的重要部分。

客户端          

<script type="text/javascript">
    var socket = io.connect('http://localhost');
    socket.on('message', function(message){        
        var obj = jQuery.parseJSON(message);
        var htmlStr =''; 

服务器

    var dgram = require("dgram");
    var udpResultsServer = dgram.createSocket("udp4");
    var udpTimeServer = dgram.createSocket("udp4");
    var http = require('http');
    var io = require('socket.io');

    var htmlPage;
    var jsonResults;
    var tempResults = '';
    var finalResults = '';
    var time = '0.0';
    var r = new Array();

    /*  
    ************************************
    ** Get Ip Addresses               **
    ************************************
    */
    function getIP(){
        var os = require( 'os' );
        var networkConfig = os.networkInterfaces( );    
        var ipList ='';    
        for (var name in networkConfig) {
            networks = networkConfig[name];    
            for (var name in networks) {        
                details = networks[name];       
                if (details['family'] == "IPv4"){    
                    ipList = ipList + details['address'] + " ";
                }
            }
        }
        return ipList;
    }


    /*  
    ************************************
    ** Web server and sockets.io       **
    ************************************
    */
    var htmlPage;

    // read html file to serve
    fs.readFile('lynx.html', function(error, data){
        if (error){
            throw error;
        }
        else{
            htmlPage = data;
            console.log('Server wrote to lynx.html file');
        }
    });

    // start web server 
    var htmlServer = http.createServer(function(request, response) {
        response.writeHeader(200, {"Content-Type": "text/html"});
        console.log('Client Connected ....');
        response.end(htmlPage);

    });
    htmlServer.listen(8000,'127.0.0.1');
    console.log("HTML server started on: " + getIP());

    // start up socket.io for transmitting data to the web page
    var serv_io = io.listen(htmlServer, { log: false });
    serv_io.sockets.on('connection', function(socket){
        //send data to client
        setInterval(function(){
            jsonResults = JSON.stringify(r);        // convert final array into a json string
            socket.send(jsonResults);               // sent json results via socket
            console.log('send <--> receive');
        }, 1000);
    });

当我在我正在处理的驱动器中本地安装Socket.io时会出现这些错误,这是否会导致错误。

我还在全球范围内安装了-g而且没有错误。

 npm WARN package.json fs@0.0.2 fs is also the name of a node core module.
 npm WARN package.json fs@0.0.2 No description
 npm WARN package.json fs@0.0.2 No repository field.
 npm WARN package.json net@1.0.2 net is also the name of a node core module.
 npm WARN package.json net@1.0.2 'repositories' (plural) Not supported. Please pick one as the        'repository' field
 npm WARN package.json has-binary-data@0.1.5 No repository field.
 socket.io@1.2.1 node_modules/socket.io
 âââ debug@0.7.4
 âââ has-binary-data@0.1.3 (isarray@0.0.1)

1 个答案:

答案 0 :(得分:1)

如果您的服务器位于加载网页的同一主机和端口上,那么您应该可以在客户端中执行此操作:

var socket = io();

它将从加载网页时获取相同的主机/端口,并与之建立socket.io连接。


如果您的socket.io服务器与网页不在同一主机/端口上,那么您可能会遇到一些需要解决的跨域问题。