Swoole+Redis+webSocket实现点对点即时聊天

程序员文章站 2022-05-21 14:19:06

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Swoole+Redis+webSocket实现点对点即时聊天，以下是代码+效果截图：

Server.php:

$server = new swoole_websocket_server("0.0.0.0", 9502);

$server->on('open', function($server, $req) {
    echo "connection open: {$req->fd}\n";
});

$server->on('message', function($server, $frame) {
    echo "received message: {$frame->data}\n";
    $receive_data=json_decode($frame->data);
    $redis=new Redis();
    $redis->connect('127.0.0.1', 6379);
    if($receive_data->type=='bind'){
        //关系绑定
        $redis->set('fd_'.$receive_data->name,$frame->fd);
        $redis->set('name_'.$frame->fd,$receive_data->name);
    }else{
        //消息发送
        $data['fd']=$frame->fd;
        $data['name']=$receive_data->name;
        $data['data']=$receive_data->msg;
        $server->push($redis->get('fd_'.$receive_data->touser), json_encode($data));
        $server->push($frame->fd, json_encode($data));
    }
});

$server->on('close', function($server, $fd) {
    echo "connection close: {$fd}\n";
    //取消关系绑定
    $redis=new Redis();
    $redis->connect('127.0.0.1', 6379);
    $redis->del('fd_'.$redis->get('name_'.$fd));
    $redis->del('name_'.$fd);
});

$server->on('Shutdown', function($server) {
    //kill -15 PID 才会触发
    echo "Shutdown。。。\n";
    $redis=new Redis();
    $redis->connect('127.0.0.1', 6379);
    //取消所有关系绑定
    foreach($server->connections as $fd)
    {
        $redis->del('fd_'.$redis->get('name_'.$fd));
        $redis->del('name_'.$fd);
    }
});

$server->start();

index.html:

<!DOCTYPE html>
<html lang="en">
<head>
    <meta charset="UTF-8">
    <title>聊天室</title>
    <script src="http://libs.baidu.com/jquery/2.0.0/jquery.min.js"></script>
</head>
<style>
    ul,li{list-style: none;padding: 0;margin: 0;}
    body{width: 50%;float: left;margin: 5px 25%;}
    .msg_box{width: 100%;border:1px solid #ddd;height: 500px; float: left;overflow: scroll;}
    .msg_box li{padding: 10px;border-bottom:1px solid #ddd;}
    .op_box{width: 100%;float: left;}
    .op_box textarea{width: 96%;float: left;padding: 2%;border:1px solid #ddd;height: 50px;resize: none;}
    .op_box a{width: 200px;display: block;float: right;height: 30px;line-height: 30px;background: #ddd;color: black;text-align: center;text-underline-style: none;margin-top: 5px;}

</style>
<body>
<ul class="msg_box"></ul>
<div class="op_box">
    <textarea name="msg" placeholder="请输入消息"></textarea>
    <a href="javascript:;" class="send_btn">发送</a>
</div>
</body>
<script>
    var data='';
    var name = window.prompt('请输入昵称', 'jungshen');
    var touser=window.prompt('请输入好友昵称', 'mirror');
    $('title').html('您是：'+name+'正在与'+touser+'聊天_'+$('title').html());
    if(name){
        var ws = new WebSocket("ws://192.168.91.136:9502");

        ws.onopen = function(evt) {
            console.log("Connection open ...");
            //ws.send("Hello WebSockets!");
            data={'name':name,'type':'bind'}
            ws.send(JSON.stringify( data ));
        };

        ws.onmessage = function(evt) {
            console.log( "Received Message: " + evt.data);
            dataObj=eval('('+evt.data+')');
            $('.msg_box').append('<li>'+dataObj.name+':'+dataObj.data+'</li>')
            //ws.close();
        };
        ws.onclose = function(evt) {
            console.log("Connection closed.");
        };
        ws.onerror = function(evt) {
            console.log('error');
        };
    }


    $('.send_btn').click(function(){
        var msg=$('textarea').val();
        if(msg){
            data={'name':name,'msg':msg,'type':'msg','touser':touser}
            ws.send(JSON.stringify( data ));
            $('textarea').val('');
        }
    });
    document.onkeydown=function(event){
        if(event.keyCode==13)
        {
            $('.send_btn').click();
            return false;
        }
    }

</script>
</html>

效果图：

Swoole+Redis+webSocket实现点对点即时聊天