node与socket.io搭配小例子-转载
//服务端代码 io = require('socket.io').listen(app), fs = require('fs'), cookie=require('cookie'); request=require('request'); global.userlist={}; app.listen(8080); //io.set('log level', 1);//将socket.io中的debug信息关闭 function handler (req, res) { res.writeHead(200, { 'Content-Type': 'text/plain' }); res.end('Hello World\n'); } var content; var socketUser = {}; var settings={}; settings.host='http://localhost/test/node/myapp/'; io.sockets.on('connection', function (socket) { if(socket.handshake.headers.cookie){ var curcookie=cookie.parse(socket.handshake.headers.cookie); var id=curcookie['PHPSESSID']; request(settings.host+'getinfo.php?type=getinfo&sid='+id,function(err,res,body){ if(!err&&res.statusCode==200){ if(body){ body=eval('('+body+')'); var userid=body.ID; var username=body.UserName; var online=body.Online; //将新用户存进socket用户列表中 userlist[id]=socket; socketUser[id] = { 'userid':userid, 'username':username }; //更改上线状态 request(settings.host+'getinfo.php?type=online&sid='+id,function(err,res,body){}) //发送信息给新登录用户 socket.emit('system',{ 'alluser':socketUser }); //上线欢迎 socket.emit('open',{ 'msg':'welcome!' }) //下线推送通知 disconnect方法名不能修改 socket.on('disconnect',function(){ //更改用户不在线 socketUser[id]=null; userlist[id]=null; request(settings.host+'getinfo.php?type=unline&sid='+id,function(err,res,body){}) socket.broadcast.emit('broadcast',{ 'msg':'noline', 'unlineid':userid, 'unlinename':username, 'type':1 }); }) //监听接收用户信息 socket.on('sendnews', function (data) { if(data.touserid&&userlist[data.touserid]!=undefined){ var user=userlist[data.touserid]; data.fromusername=socketUser[data.fromuserid].username; //将用户信息发送给指定用户 user.emit('receivenews',data); }else{ socket.emit('receivenews',data); } }); //广播 推送已登录的用户 socket.broadcast.emit('broadcast',{ 'userid':userid, 'username':username, 'type':2 }); }else{ console.log('falseness connect'); } } }) }else{ console.log('cookie not exist'); } });
//客户端代码 <?php $data = $_GET; if (!isset($data['username']) || $data['username'] === '' || !isset($data['id']) || $data['id'] === '') { header("location:login.php"); } session_id($data['id']); session_start(); $userid = $data['id']; $name = $data['username']; $con = <a href="https://www.baidu.com/s?wd=mysql_connect&tn=44039180_cpr&fenlei=mv6quAkxTZn0IZRqIHckPjm4nH00T1YvPAndmhNWnWu9nvczmWb10ZwV5Hcvrjm3rH6sPfKWUMw85HfYnjn4nH6sgvPsT6KdThsqpZwYTjCEQLGCpyw9Uz4Bmy-bIi4WUvYETgN-TLwGUv3EnHT1n1D4P1R4PjnkPjcdnW6vPs" target="_blank" class="baidu-highlight">mysql_connect</a>("localhost", "root", "") or die("sds"); <a href="https://www.baidu.com/s?wd=mysql_select_db&tn=44039180_cpr&fenlei=mv6quAkxTZn0IZRqIHckPjm4nH00T1YvPAndmhNWnWu9nvczmWb10ZwV5Hcvrjm3rH6sPfKWUMw85HfYnjn4nH6sgvPsT6KdThsqpZwYTjCEQLGCpyw9Uz4Bmy-bIi4WUvYETgN-TLwGUv3EnHT1n1D4P1R4PjnkPjcdnW6vPs" target="_blank" class="baidu-highlight">mysql_select_db</a>("test", $con); mysql_query("set names utf8"); $sql = 'select * from io_user where username="' . $name . '" and ID=' . $userid; $result = mysql_query($sql); $res = mysql_fetch_assoc($result); if (!$res) { header("location:login.php"); } ?> <html lang="en"> <head> <meta http-equiv="Content-Type" content="text/html; charset=utf-8" /> <title>Ssocket</title> <script type="text/javascript" src="public/javascripts/jquery.min.js"></script> <script type="text/javascript" src="http://localhost:8080/socket.io/socket.io.js"></script> </head> <body> <p>我的id：<?php echo $userid ?></p> <p>我的名字：<?php echo $name; ?></p> <h4>在线用户列表</h4> <table border="1" id="userlists"> <thead> <tr> <th width="80px">ID</th> <th width="80px">用户名</th> <th width="80px">选中</th> </tr> </thead> <tbody> </tbody> </table> <p style="margin-top:10px"> 信息: <input type="text" style="width:338px" id="content"> <button id="send">发送</button> </p> <div id="msg"></div> <div id="unline"></div> <script type="text/javascript"> var userid='<?php echo $userid; ?>'; var username='<?php echo $name; ?>'; var socket = io.connect('http://localhost:8080'); //欢迎信息 socket.on('open',function(res){ console.log(res); }) //无连接 socket.on('disconnect',function(res){ console.log('not connect'); }) //接收用户消息 socket.on('receivenews',function(res){ var html='<p>来自用户 ('+res.fromusername+') 的消息: '+res.content+'</p>'; $('#msg').append(html) }) //接收系统消息 socket.on('system',function(res){ if(res.alluser){ var html=''; var time=0; $.each(res.alluser,function(k,v){ if(v==null||v.userid==userid){ return; } time++; html+='<tr userid="'+v.userid+'"><td>'+time+'<td>'+v.username+'</td>'; html+='<td><input type="checkbox" class="checkbox" userid="'+v.userid+'"></td></tr>'; }) $('#userlists tbody').html(html); } }) //获取推送信息 socket.on('broadcast',function(res){ if(res.type==1&&res.unlineid!=userid){ $('#userlists tbody tr[userid="'+res.unlineid+'"]').remove(); $('#unline').append('<p>用户'+res.unlinename+'离线</p>') return false; } if(res.type==2&&res.userid){ if(res.userid==userid){ return false; } if($('#userlists tbody tr[userid="'+res.userid+'"]').length>0){ return false; } var html=''; var length=$('#userlists tbody tr').length; html+='<tr userid="'+res.userid+'"><td>'+(length+1)+'<td>'+res.username+'</td>'; html+='<td><input type="checkbox" class="checkbox" userid="'+res.userid+'"></td></tr>'; $('#userlists tbody').append(html); $('#unline').append('<p>用户'+res.username+'上线</p>') return false; } }) $(function(){ $('.checkbox').live('click',function(){ if($(this).attr('checked')=='checked'){ $('.checkbox').removeAttr('checked'); $(this).attr('checked',true); } }) //输入框回车事件 $("#content").keyup(function(e){ if(e.keyCode==13){ $('#send').trigger('click'); } return false; }); $('#send').click(function(){ var content=$('#content').val(); var data={}; var touserid=$('.checkbox[checked]').attr('userid'); if(touserid==undefined){ alert('请选择用户'); return false; } if(content!=''){ $('#content').val(''); data.fromuserid=userid; data.touserid=touserid; data.content=content; //发送信息 socket.emit('sendnews',data); } }) }) </script> </body> </html>
代码网上转载而来，质量不论，仅做参考
