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Redis 实现每个连接websocket的服务都唯一绑定一个用户。通过 用户账号 = websocket fd 存到redis中。
Mysql 实现离线消息池。如果一个用户不在线,则其他用户发送给他的消息暂时存储在mysql。待该用户上线时,再从离线消息池取出发送。
具体参考代码和相应注释:
<"0.0.0.0", 9052); $redis = new Redis(); $redis->connect('127.0.0.1', 6379); $db = new mysqli('127.0.0.1', 'test', 'test', 'thinkphp5'); $server->on('open', function (swoole_websocket_server $server, $request) { echo "server: handshake success with fd{$request->fd}\n";//$request->fd 是客户端id }); $server->on('message', function (swoole_websocket_server $server, $frame) { $data = json_decode($frame->data,true); if($data['flag'] == 'init'){ //用户刚连接的时候初始化,每个用户登录时记录该用户对应的fd $GLOBALS['redis']->set($data['from'], $frame->fd); //处理发给该用户的离线消息 $sql = "SELECT `from`,content FROM thinkphp5.app_offline WHERE `to`='{$data['from']}' AND `from`='{$data['to']}' AND `status`='0' ORDER BY addtime ASC;"; if ($result = $GLOBALS['db']->query($sql)) { $re = array(); while ($row = $result->fetch_assoc()) { array_push($re, $row); } $result->free(); foreach($re as $content){ $content = json_encode($content); $server->push($frame->fd , $content); } //设置消息池中的消息为已发送 $sql = "UPDATE thinkphp5.app_offline SET `status`=1 WHERE `to`='{$data['from']}' AND `from`='{$data['to']}';"; $GLOBALS['db']->query($sql); } }else if($data['flag'] == 'msg'){ //非初始化的信息发送,一对一聊天,根据每个用户对应的fd发给特定用户 $tofd = $GLOBALS['redis']->get($data['to']); //消息要发给谁 $fds = []; //所有在线的用户(打开聊天窗口的用户) foreach($server->connections as $fd){ array_push($fds, $fd); } if(in_array($tofd,$fds)){ $tmp['from'] = $data['from']; //消息来自于谁 $tmp['content'] = $data['content']; //消息内容 $re = json_encode($tmp); $server->push($tofd , $re); }else{ //该玩家不在线(不在聊天室内),将信息发送到离线消息池 $time = time(); $sql = "INSERT INTO thinkphp5.app_offline (`to`,`from`,`content`,`status`,`addtime`) VALUES ('{$data['to']}','{$data['from']}','{$data['content']}','0','{$time}');"; $GLOBALS['db']->query($sql); } }else if($data['flag'] == 'group'){ //todo 群聊 }else if($data['flag'] == 'all'){ //全站广播 foreach($server->connections as $fd){ $server->push($fd , $data); } } }); $server->on('close', function ($ser, $fd) { echo "client {$fd} closed\n"; }); $server->start();
客户端代码:
<!DOCTYPE html> <html> <head> <title>XST-app</title> <meta http-equiv="Content-Type" content="text/html; charset=utf-8" /> <meta http-equiv="X-UA-Compatible" content="IE=EmulateIE7" /> <meta name="viewport" content="width=device-width, initial-scale=0.0, user-scalable=no, minimum-scale=1.0, maximum-scale=1.0" /> <meta name="keywords" content="test" /> <meta name="description" content="test" /> <meta name="author" content="XST-APP" /> <meta content="yes" name="apple-mobile-web-app-capable" /> <meta content="black" name="apple-mobile-web-app-status-bar-style" /> <meta content="telephone=no" name="format-detection" /> <style type="text/css"> body{background:url(/static/images/yuyin_bg.jpg);background-size:100%;} @media all and (min-width: 640px) { body,html,.wenwen-footer,.speak_window{width:640px!important;margin:0 auto} .speak_window,.wenwen-footer{left:50%!important;margin-left:-320px} } input,button{outline:none;} .wenwen-footer{width:100%;position:fixed;bottom:-5px;left:0;background:#fff;padding:3%;border-top:solid 1px #ddd;box-sizing:border-box;} .wenwen_btn,.wenwen_help{width:15%;text-align:center;} .wenwen_btn img,.wenwen_help img{height:40px;} .wenwen_text{height:40px;border-radius:5px;border:solid 1px #636162;box-sizing:border-box;width:66%;text-align:center;overflow:hidden;margin-left:2%;} .circle-button{padding:0 5px;} .wenwen_text .circle-button{font-size:14px;color:#666;line-height:38px;} .write_box{background:#fff;width:100%;height:40px;line-height:40px;} .write_box input{height:40px;padding:0 5px;line-height:40px;width:100%;box-sizing:border-box;border:0;} .wenwen_help button{width:95%;background:#42929d;color:#fff;border-radius:5px;border:0;height:40px;} #wenwen{height:100%;} .speak_window{overflow-y:scroll;height:100%;width:100%;position:fixed;top:50px;left:0;} .speak_box{margin-bottom:70px;padding:10px;} .question,.answer{margin-bottom:1rem;} .question{text-align:right;} .question>div{display:inline-block;} .left{float:left;} .right{float:right;} .clear{clear:both;} .heard_img{height:60px;width:60px;border-radius:5px;overflow:hidden;background:#ddd;} .heard_img img{width:100%;height:100%} .question_text,.answer_text{box-sizing:border-box;position:relative;display:table-cell;min-height:60px;} .question_text{padding-right:20px;} .answer_text{padding-left:20px;} .question_text p,.answer_text p{border-radius:10px;padding:.5rem;margin:0;font-size:14px;line-height:28px;box-sizing:border-box;vertical-align:middle;display:table-cell;height:30px;word-wrap:break-word;} .answer_text p{background:#fff;} .question_text p{background:#42929d;color:#fff;text-align:left;} .question_text i,.answer_text i{width:0;height:0;border-top:5px solid transparent;border-bottom:5px solid transparent;position:absolute;top:25px;} .answer_text i{border-right:10px solid #fff;left:10px;} .question_text i{border-left:10px solid #42929d;right:10px;} .answer_text p a{color:#42929d;display:inline-block;} .write_list{position:absolute;left:0;width:100%;background:#fff;border-top:solid 1px #ddd;padding:5px;line-height:30px;} </style> </head> <body> <div id="header" class="head"> <div class="wrap"> <i class="menu_back"><a href="javascript:history.go(-1);" rel="external nofollow" ></a></i> <div class="title"> <span class="title_d"><p>与 {$tonickname} 的聊天</p></span> <div class="clear"></div> </div> <!--i class="menu_share"></i--> </div> </div> <input type="hidden" name="myemail" id="myemail" value="{$myemail}" /> <input type="hidden" name="mynickname" id="mynickname" value="{$mynickname}" /> <input type="hidden" name="myavatar" id="myavatar" value="{$myavatar}" /> <input type="hidden" name="toemail" id="toemail" value="{$toemail}" /> <input type="hidden" name="tonickname" id="tonickname" value="{$tonickname}" /> <input type="hidden" name="toavatar" id="toavatar" value="{$toavatar}" /> <!-- 对话内容 --> <div class="speak_window"> <div class="speak_box"> </div> </div> <!-- 内容输入--> <div class="wenwen-footer"> <div class="wenwen_btn left"><img src="/UploadFiles/2021-04-02/jp_btn.png">数据表结构:
CREATE TABLE `app_offline` ( `id` int(11) NOT NULL AUTO_INCREMENT, `from` varchar(50) DEFAULT NULL COMMENT '离线发送方', `to` varchar(50) DEFAULT NULL COMMENT '离线接收方', `content` varchar(1000) DEFAULT NULL COMMENT '发送的离线内容', `status` tinyint(4) DEFAULT '0' COMMENT '发送状态:0-未发送,1-已发送', `addtime` int(11) DEFAULT NULL COMMENT '发送方发送时间', PRIMARY KEY (`id`) ) ENGINE=InnoDB AUTO_INCREMENT=2 DEFAULT CHARSET=utf8具体效果:
以上就是本文的全部内容,希望对大家的学习有所帮助,也希望大家多多支持。
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稳了!魔兽国服回归的3条重磅消息!官宣时间再确认!
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