我正在开发一个应用程序，我需要实时向所有连接的客户端发送通知。我已经使用nodejs将实时通知发送给连接的客户端。
问题是这在服务器上正常工作，而连接的客户端无法显示弹出通知。虽然根据插入服务器和客户端上的数据库的通知，通知总数也在增加。只有问题没有弹出通知。
代码：index.php
<?php
include_once( dirname( __FILE__ ) . '/class/Database.class.php' );
include_once( dirname( __FILE__ ) . '/class/HelperClass.php' );
$pdo = Database::getInstance()->getPdoObject();
$helper = new HelperClass();
?>
<!DOCTYPE html>
<html lang="en">
<head>
<meta http-equiv="Content-Type" content="text/html; charset=UTF-8">
<!-- Meta, title, CSS, favicons, etc. -->
<meta charset="utf-8">
<meta http-equiv="X-UA-Compatible" content="IE=edge">
<meta name="viewport" content="width=device-width, initial-scale=1">
<title>VegFru | Notification</title>
<!-- Bootstrap core CSS -->
<link href="css/bootstrap.min.css" rel="stylesheet">
<link href="fonts/css/font-awesome.min.css" rel="stylesheet">
<link href="css/animate.min.css" rel="stylesheet">
<link href="css/pnotify.custom.min.css" rel="stylesheet">
<!-- Custom styling plus plugins -->
<link href="css/custom.css" rel="stylesheet">
<script src="js/jquery.min.js"></script>
</head>
<body class="nav-md">
<div class="container body">
<div class="main_container">
<div class="col-md-3 left_col">
<div class="left_col scroll-view">
<div class="navbar nav_title" style="border: 0;">
<a href="index.php" class="site_title"><i class="fa fa-paw"></i> <span>VegFru</span></a>
</div>
<div class="clearfix"></div>
<!-- menu prile quick info -->
<div class="profile">
<div class="profile_pic">
<img src="images/img.jpg" alt="..." class="img-circle profile_img">
</div>
<div class="profile_info">
<span>Welcome,</span>
<h2>Ashish Singh</h2>
</div>
</div>
<!-- /menu prile quick info -->
<br />
<!-- sidebar menu -->
<div id="sidebar-menu" class="main_menu_side hidden-print main_menu">
<div class="menu_section">
<ul class="nav side-menu">
<li><a href="#">Push Notification <i class="fa fa-dashboard pull-right"></i></a></li>
<li>
<form action="ajax/insertNewMessage.php" id="notification">
<div class="form-group" style="margin-left: 16px; width: 83%">
<input type="checkbox" onclick="client.gerateRandomNotification(this)"/>
<label class="control-label" for="notification-input">Generate Random</label>
</div>
<div class="form-group" style="margin-left: 16px; width: 83%">
<label class="control-label" for="notification-input">Notification Message</label>
<input type="text" id="notification-input" class="form-control" placeholder="Notification Message"><br/>
</div>
<button type="submit" class="btn btn-success" style="margin-left: 16px;">Send Push Notification</button>
</form>
</li>
</ul>
</div>
</div>
<!-- /sidebar menu -->
</div>
</div>
<!-- top navigation -->
<div class="top_nav">
<div class="nav_menu">
<nav class="" role="navigation">
<!-- <div class="nav toggle">
<a id="menu_toggle"><i class="fa fa-bars"></i></a>
</div>
-->
<ul class="nav navbar-nav navbar-right">
<li class="">
<a href="javascript:;" class="user-profile dropdown-toggle" data-toggle="dropdown" aria-expanded="false">
<img src="images/img.jpg" alt="">Ashish Singh
</a>
</li>
<li role="presentation" class="dropdown">
<a href="javascript:;" class="dropdown-toggle info-number" data-toggle="dropdown" aria-expanded="false">
<i class="fa fa-envelope-o"></i>
<span class="badge bg-green"></span>
</a>
</li>
<li role="presentation" class="dropdown">
<?php
$query = $pdo->prepare( 'SELECT * FROM notification WHERE status = 0 ORDER BY id DESC' );
$query->execute();
$notifications = $query->fetchAll( PDO::FETCH_OBJ );
?>
<a href="javascript:;" class="dropdown-toggle info-number" data-toggle="dropdown" aria-expanded="false">
<i class="fa fa-bell-o"></i>
<span class="badge bg-green"><?= count($notifications) > 0 ? count($notifications): '' ?></span>
</a>
<ul class="dropdown-menu list-unstyled msg_list animated fadeInDown" style="right: -120px !important; border-top-left-radius: 7px; border-top-right-radius: 7px; margin-top: 10px;" role="menu">
<li style="background-color: white">
<div class="text-center">
<a>
<strong><a href="inbox.html">Notification (<?= count($notifications) ?>)</strong>
</a>
</div>
</li>
<div id="notifications-container">
<?php foreach( $notifications as $notification):?>
<li data-id="<?= $notification->id ?>" onclick="client.openNotification(this)">
<a>
<span class="image">
<img src="images/img.jpg" alt="Profile Image" />
</span>
<span>
<span>Ashish Singh</span>
<span class="time"><?php echo $helper->time_elapsed_string($notification->created_at) ?></span>
</span>
<span class="message">
<?php echo $notification->notification ?>
</span>
</a>
</li>
<?php endforeach; ?>
</div>
<li>
<div class="text-center">
<a>
<strong><a href="inbox.html">See All Alerts</strong>
<i class="fa fa-angle-right"></i>
</a>
</div>
</li>
</ul>
</li>
</ul>
</nav>
</div>
</div>
<!-- /top navigation -->
</div>
</div>
<script src="js/bootstrap.min.js"></script>
<script src="js/pnotify.custom.min.js"></script>
<script src="js/node_modules/socket.io/node_modules/socket.io-client/dist/socket.io.js"></script>
<script src="js/nodeClient.js"></script>
</body>
</html>
nodeserver.js
var socket = require( 'socket.io' );
var express = require( 'express' );
var http = require( 'http' );
var app = express();
var server = http.createServer( app );
var io = socket.listen( server );
io.sockets.on( 'connection', function( client ) {
console.log( "New client" );
client.on( 'notification', function( data ) {
console.log( 'Notification received ' + data.notification);
//client.broadcast.emit( 'message', { name: data.name, message: data.message } );
io.sockets.emit( 'notification', { notification: data.notification, serverData: data.serverData } );
});
});
server.listen( 8082 );
nodeclient.js
var client = (function () {
var socket = io.connect('http://192.168.2.8:8082');
var interval; //for random notification generation
function init() {
buttonClicked();
socketNotificationUpdate();
}
function buttonClicked() {
$("#notification").on('submit', function (e) {
e.preventDefault(); //Preventing default submit action
var $cacheDom = $(this); //Caching the dom so that jQuery doesn't always need to search in the page
var url = $cacheDom.attr('action'); //Grabbing url of the form
var notification = $cacheDom.find('div:nth-child(2) input').val();
$cacheDom.find('div').removeClass('has-error').addClass('has-success').val('');
if (notification.length == 0) {
$cacheDom.find('div').removeClass('has-success').addClass('has-error');
return false;
}
//Ajax call to save data
saveAjaxNotification(notification, url);
});
}
function socketNotificationUpdate() {
socket.on('notification', function (data) {
var $cacheDom = $('#notifications-container');
var actualContent = $cacheDom.html(); //All notification
var $notificationCount = $cacheDom.parent().prev().find('span'); //Header notification count selector
var notificationCount = $notificationCount.text(); //Header Notification count
$notificationCount.text(Number(notificationCount) + 1); //Incrementing after one notification
var newMsgContent = '<li data-id="' + data.serverData.lastInsertId + '" onclick="client.openNotification(this)"><a><span class="image"><img src="images/img.jpg" alt="Profile Image" /></span><span><span>Ashish Singh</span><span class="time">0 seconds ago</span></span><span class="message">' + data.notification + '</span></a></li>';
$cacheDom.html(newMsgContent + actualContent);
});
}
function openNotification(that) {
var notificationId = $(that).attr('data-id');
$.post('./ajax/readNotification.php', {notification_id: notificationId}, function () {
$(that).remove(); //removing the clicked notification (optional as it should take the user to new page)
var $notificationCount = $('#notifications-container').parent().prev().find('span');
var notificationCount = $notificationCount.text();
$notificationCount.text(Number(notificationCount) - 1);
alert('Notification Link will be opened'); //Just for message
location.href = ""; //Reloading the page as on clicking the notification will take the user to notifications page where all the notification will be shown (read or unread)
});
}
function saveAjaxNotification(notification, url) {
$.ajax({
url: url,
type: "POST",
data: {notification: notification},
success: function (data) {
var serverData = JSON.parse(data);
socket.emit('notification', {notification: notification, serverData: serverData});
PNotify.desktop.permission();
(new PNotify({
title: 'Ashish Singh',
text: notification,
desktop: {
desktop: true,
icon: 'images/img.jpg'
}
})).get().click(function (e) {
if ($('.ui-pnotify-closer, .ui-pnotify-sticker, .ui-pnotify-closer *, .ui-pnotify-sticker *').is(e.target))
return;
alert('http://vegfru.com/imrealashu/notification/' + serverData.link);
});
}
});
}
function gerateRandomNotification(that) {
var url = $(that).parent().parent().attr('action');
var count = 1;
if ($(that).is(':checked')) {
interval = setInterval(function () {
saveAjaxNotification('notification' + count, url);
count++
}, 3000);
} else {
clearInterval(interval);
}
}
init();
return {
openNotification: openNotification, //Revealing the openNotification function as it will be used in DOM
gerateRandomNotification: gerateRandomNotification
}
})();