PHP用swoole+websocket和redis实现web一对一聊天_php实例_

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(); 

 　　
与 {$tonickname} 的聊天
发送

 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