 var express=require("express");

 var http=require("http");

 var sio=require("socket.io");

 var app=express();

 var server=http.createServer(app);

 var fs=require("fs");

 app.get("/", function (req,res) {

    res.sendfile(__dirname+"/index.html");

 });

 server.listen(1337);

 var socket=sio.listen(server);

 socket.on("connection", function (socket) {

     socket.emit("news",{hello:"你好"});

     socket.on("otherEvent", function (data) {

         console.log("服務(wù)器端接受到數(shù)據(jù):%j",data);

     })

 });

客戶端index.html代碼

復(fù)制代碼代碼如下:

 <!DOCTYPE html>

 <html>

 <head lang="en">

     <meta charset="UTF-8">

     <title></title>

     <script src="/socket.io/socket.io.js"></script>

     <script>

         var socket=io.connect();

         socket.on("news", function (data) {

             console.log(data.hello);

             socket.emit("otherEvent",{my:"data"});

         });

     </script>

 </head>

 <body>

 </body>

 </html>

忽然想到一個問題.我可不可以把news的監(jiān)聽代碼寫到和emit的同一端.

這樣:

復(fù)制代碼代碼如下:

 var express=require("express");

 var http=require("http");

 var sio=require("socket.io");

 var app=express();

 var server=http.createServer(app);

 app.get("/", function (req,res) {

     res.sendfile(__dirname+"/index.html");

 });

 server.listen(1337,"127.0.0.1", function () {

     console.log("開始監(jiān)聽1337");

 });

 var socket=sio.listen(server);

 socket.on("connection", function (socket) {

     socket.on("news", function (data) {

     console.log(data.hello);

     });

     socket.emit("news",{hello:"你好"});

 });