Created
May 1, 2017 15:27
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Websocket multi room based on ws.js
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| <html> | |
| <body> | |
| <h4>websocket</h4> | |
| <h5>Group: <span id="group">darwin</span></h5> | |
| <!-- a hardoced group name --> | |
| <button onclick="bjoin();">join group</button><br> | |
| <input id="text" type="text"/> | |
| <span id="out"></span> | |
| <script> | |
| var group=document.getElementById("group").textContent; | |
| var ws=new WebSocket('ws://localhost:5000'); | |
| ws.onerror=function(e){out.innerHTML=e;} | |
| ws.onclose=function(e){out.innerHTML='closed'+e;} | |
| ws.onopen=function(){ | |
| out.innerHTML='connected '; | |
| } | |
| ws.onmessage=function(ms){out.innerHTML+=ms.data+'<br>';} | |
| function send(msg){ | |
| ws.send(JSON.stringify({msg:msg})); | |
| } | |
| function broadcast(msg,room){ | |
| ws.send(JSON.stringify({room:room,msg:msg})) | |
| } | |
| function join(room){ | |
| ws.send(JSON.stringify({join:room})); | |
| } | |
| function bjoin(){ | |
| //alert(group); | |
| join(group); | |
| } | |
| text.onchange=function(el){ | |
| //alert(el.target.value); | |
| broadcast(el.target.value,group); | |
| } | |
| </script> | |
| </body> | |
| </html> |
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| const WebSocket = require('ws'); | |
| const http=require('http'); | |
| const express = require('express'); | |
| const app = express(); | |
| app.use(express.static('public')); | |
| const bserver=http.createServer(app); | |
| const webPort = 5000; | |
| bserver.listen(webPort, function(){ | |
| console.log('Web server start. http://localhost:' + webPort ); | |
| }); | |
| const wss=new WebSocket.Server({server:bserver}); | |
| wss.on('connection',ws=>{ | |
| ws.room=[]; | |
| ws.send(JSON.stringify({msg:"user joined"})); | |
| console.log('connected'); | |
| ws.on('message', message=>{ | |
| console.log('message: ',message); | |
| //try{ | |
| var messag=JSON.parse(message); | |
| //}catch(e){console.log(e)} | |
| if(messag.join){ws.room.push(messag.join)} | |
| if(messag.room){broadcast(message);} | |
| if(messag.msg){console.log('message: ',messag.msg)} | |
| }) | |
| ws.on('error',e=>console.log(e)) | |
| ws.on('close',(e)=>console.log('websocket closed'+e)) | |
| }) | |
| function broadcast(message){ | |
| wss.clients.forEach(client=>{ | |
| if(client.room.indexOf(JSON.parse(message).room)>-1){ | |
| client.send(message) | |
| } | |
| }) | |
| } | |
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Very interesting. Thanks!