使用GCM向多个安卓设备发送推送通知

php notifications android google-cloud-messaging

2022-08-30 20:05:47

我正在关注 http://javapapers.com/android/google-cloud-messaging-gcm-for-android-and-push-notifications/？通过 GCM 发送推送通知。一切正常，但是，我只能向一台设备发送推送通知。注册另一台设备将替换前一台设备的注册 ID。我尝试了Shardool提供的解决方案 http://javapapers.com/android/android-multicast-notification-using-google-cloud-messaging-gcm/？但它不起作用。

任何建议都会有很大的帮助。

以下是我的代码，用于注册设备并发送推送通知，但仅限于最近注册的单个设备。gcm.php

加仑/加仑/加仑.php/加仑

<?php
//generic php function to send GCM push notification
function sendPushNotificationToGCM($registatoin_ids, $message) {
    //Google cloud messaging GCM-API url
    $url = 'https://android.googleapis.com/gcm/send';
    $fields = array(
        'registration_ids' => $registatoin_ids,
        'data' => $message,
    );
    // Google Cloud Messaging GCM API Key
    define("GOOGLE_API_KEY", "MY_KEY");       
    $headers = array(
        'Authorization: key=' . GOOGLE_API_KEY,
        'Content-Type: application/json'
    );
    $ch = curl_init();
    curl_setopt($ch, CURLOPT_URL, $url);
    curl_setopt($ch, CURLOPT_POST, true);
    curl_setopt($ch, CURLOPT_HTTPHEADER, $headers);
    curl_setopt($ch, CURLOPT_RETURNTRANSFER, true);
    curl_setopt($ch, CURLOPT_POSTFIELDS, json_encode($fields));
    $result = curl_exec($ch);             
    if ($result === FALSE) {
        die('Curl failed: ' . curl_error($ch));
    }
    curl_close($ch);
    return $result;
}
?>
<?php
//this block is to post message to GCM on-click
$pushStatus = "";   
if ( ! empty($_GET["push"])) { 
    $gcmRegID  = file_get_contents("GCMRegId.txt");
    $pushMessage = $_POST["message"];   
    if (isset($gcmRegID) && isset($pushMessage)) {      
        $gcmRegIds = array($gcmRegID);
        $message = array("m" => $pushMessage);  
        $pushStatus = sendPushNotificationToGCM($gcmRegIds, $message);
    }       
}
//this block is to receive the GCM regId from external (mobile apps)
if ( ! empty($_GET["shareRegId"])) {
    $gcmRegID  = $_POST["regId"]; 
    file_put_contents("GCMRegId.txt",$gcmRegID);
    echo "Ok!";
    exit;
}   
?>
<html>
    <head>
        <title>Google Cloud Messaging (GCM) Server in PHP</title>
    </head>
    <body>
        <h1>Google Cloud Messaging (GCM) Server in PHP</h1> 
        <form method="post"   action="gcm.php/?push=1">                                              
            <div>                                
                <textarea rows="2" name="message" cols="23" placeholder="Message to transmit via   GCM"></textarea>
            </div>
            <div><input type="submit"  value="Send Push Notification via GCM" /></div>
        </form>
        <p><h3><?php echo $pushStatus; ?></h3></p>        
    </body>
</html>

请告诉我如何在GCMRegid中存储多个设备注册ID.txt并向每个已注册的设备发送通知

答案 1

在这里，我使用mysql重写了php，而不是从文件中检索密钥。在这种情况下，我从表中检索所有regId，并将它们放在一个数组中，并将其传递给sendPushNotification函数，以将消息推送给所有人。在这里，您有2个文件，一个用于连接到数据库，一个用于GCM：

连接.php：

<?php

    $db_host = "localhost";
    $db_user = "root"; //change to your database username, it is root by default
    $db_pass = '';     //change to your database password, for XAMPP it is nothing for WAMPP it is root
    $db_db = 'gcmFirst'; //change to your database name

    if(!@mysql_connect($db_host, $db_user, $db_pass) || !@mysql_select_db($db_db)) {
        die('couldnt connect to database ' .mysql_error());
    }

?>

加仑/加仑/加仑.php/加仑

<?php
require 'connect.php';

function sendPushNotification($registration_ids, $message) {

    $url = 'https://android.googleapis.com/gcm/send';
    $fields = array(
        'registration_ids' => $registration_ids,
        'data' => $message,
    );

    define('GOOGLE_API_KEY', 'AIzaSyCjctNK2valabAWL7rWUTcoRA-UAXI_3ro');

    $headers = array(
        'Authorization:key=' . GOOGLE_API_KEY,
        'Content-Type: application/json'
    );
    echo json_encode($fields);
    $ch = curl_init();
    curl_setopt($ch, CURLOPT_URL, $url);
    curl_setopt($ch, CURLOPT_POST, true);
    curl_setopt($ch, CURLOPT_HTTPHEADER, $headers);
    curl_setopt($ch, CURLOPT_SSL_VERIFYPEER, false);
    curl_setopt($ch, CURLOPT_POSTFIELDS, json_encode($fields));

    $result = curl_exec($ch);
    if($result === false)
        die('Curl failed ' . curl_error());

    curl_close($ch);
    return $result;

}

$pushStatus = '';

if(!empty($_GET['push'])) {

    $query = "SELECT regId FROM users";
    if($query_run = mysql_query($query)) {

        $gcmRegIds = array();
        while($query_row = mysql_fetch_assoc($query_run)) {

            array_push($gcmRegIds, $query_row['regId']);

        }

    }
    $pushMessage = $_POST['message'];
    if(isset($gcmRegIds) && isset($pushMessage)) {

        $message = array('message' => $pushMessage);
        $pushStatus = sendPushNotification($gcmRegIds, $message);

    }   
}

if(!empty($_GET['shareRegId'])) {

    $gcmRegId = $_POST['regId'];
    $query = "INSERT INTO users VALUES ('', '$gcmRegId')";
    if($query_run = mysql_query($query)) {
        echo 'OK';
        exit;
    }   
}
?>

<html>
    <head>
        <title>Google Cloud Messaging (GCM) Server in PHP</title>
    </head>
    <body>
    <h1>Google Cloud Messaging (GCM) Server in PHP</h1>
    <form method = 'POST' action = 'gcm.php/?push=1'>
        <div>
            <textarea rows = 2 name = "message" cols = 23 placeholder = 'Messages to Transmit via GCM'></textarea>
        </div>
        <div>
            <input type = 'submit' value = 'Send Push Notification via GCM'>
        </div>
        <p><h3><?php echo $pushStatus ?></h3></p>
    </form>
    </body>
</html>

您所要做的就是创建一个数据库，其中包含一个以id，regId和name为列的用户表。

希望这是你正在寻找的

答案 2

我已经修改了上面的gcm.php一点以满足我的需求：

发送推送通知后，页面应自动重新加载到其原始表单。
它应该显示注册的用户数量。
GCM 一次不允许超过 1000 个 regId。因此，它应该解决这种情况。（在循环中发送 1000 个推送通知的数据包）。

gcm_main.php：

<?php
require 'connect.php'; //this is the same as as other answers on this topic

function sendPushNotification($registration_ids, $message) {

    $url = 'https://android.googleapis.com/gcm/send';
    $fields = array(
        'registration_ids' => $registration_ids,
        'data' => $message,
    );

    define('GOOGLE_API_KEY', 'your_google_api_key_here');

    $headers = array(
        'Authorization:key=' . GOOGLE_API_KEY,
        'Content-Type: application/json'
    );
    echo json_encode($fields);
    $ch = curl_init();
    curl_setopt($ch, CURLOPT_URL, $url);
    curl_setopt($ch, CURLOPT_POST, true);
    curl_setopt($ch, CURLOPT_HTTPHEADER, $headers);
    curl_setopt($ch, CURLOPT_SSL_VERIFYPEER, false);
    curl_setopt($ch, CURLOPT_POSTFIELDS, json_encode($fields));

    $result = curl_exec($ch);
    if($result === false)
        die('Curl failed ' . curl_error());

    curl_close($ch);
    return $result;

}

function redirect($url)
{
    if (!headers_sent())
    {    
        header('Location: '.$url);
        exit;
        }
    else
        {  
        echo '<script type="text/javascript">';
        echo 'window.location.href="'.$url.'";';
        echo '</script>';
        echo '<noscript>';
        echo '<meta http-equiv="refresh" content="0;url='.$url.'" />';
        echo '</noscript>'; exit;
    }
}


$pushStatus = '';

if(!empty($_GET['push'])) {

    $query = "SELECT gcm_regid FROM gcm_users";
    if($query_run = mysql_query($query)) {

        $gcmRegIds = array();
        while($query_row = mysql_fetch_assoc($query_run)) {

            array_push($gcmRegIds, $query_row['gcm_regid']);

        }

    }
    $pushMessage = $_POST['message'];
    if(isset($gcmRegIds) && isset($pushMessage)) {

        $message = array('price' => $pushMessage);
    $regIdChunk=array_chunk($gcmRegIds,1000);
    foreach($regIdChunk as $RegId){
    $pushStatus = sendPushNotification($RegId, $message);}

    }   
   $url="url_to_this_php_file";
         redirect($url);

}


if(!empty($_GET['shareRegId'])) {

    $gcmRegId = $_POST['gcm_regid'];
    $query = "INSERT INTO gcm_users VALUES ('', '$gcmRegId')";
    if($query_run = mysql_query($query)) {
       // echo 'OK';
        exit;
    }   
}
?>

<html>
    <head>
        <title>Whatever Title</title>
    </head>
    <body>

        <?php
        include_once 'db_functions.php';
        $db = new DB_Functions();
        $users = $db->getAllUsers();
        if ($users != false)
            $no_of_users = mysql_num_rows($users);
        else
            $no_of_users = 0;
        ?>
    <h1>Whatever you want</h1>
    <h2>Whatever you want</h2>
    <h3>Push Notification Admin Panel</h3>
    <h4>Current Registered users: <?php echo $no_of_users; ?></h4>
    <h4></h4>
    <form method = 'POST' action = 'gcm_main.php/?push=1'>
        <div>
            <textarea rows = "3" name = "message" cols = "75" placeholder = "Type message here"></textarea>
        </div>
        <div>
            <input type = "submit" value = "Send Notification">
        </div>

    </form>
    </body>
</html>

db_connect.php：

    <?php

    class DB_Connect {

        // constructor
        function __construct() {

        }

        // destructor
        function __destruct() {
            // $this->close();
        }

        // Connecting to database
        public function connect() {
            require_once 'config.php';
            // connecting to mysql
            $con = mysql_connect(DB_HOST, DB_USER, DB_PASSWORD);
            // selecting database
            mysql_select_db(DB_DATABASE);

            // return database handler
            return $con;
        }

        // Closing database connection
        public function close() {
            mysql_close();
        }

    } 
    ?>

db_functions.php：

        <?php

    class DB_Functions {

        private $db;

        //put your code here
        // constructor
        function __construct() {
            include_once './db_connect.php';
            // connecting to database
            $this->db = new DB_Connect();
            $this->db->connect();
        }

        // destructor
        function __destruct() {

        }

        /**
         * Storing new user
         * returns user details
         */
        public function storeUser($name, $email, $gcm_regid) {
            // insert user into database
            $result = mysql_query("INSERT INTO gcm_users(name, email, gcm_regid, created_at) VALUES('$name', '$email', '$gcm_regid', NOW())");
            // check for successful store
            if ($result) {
                // get user details
                $id = mysql_insert_id(); // last inserted id
                $result = mysql_query("SELECT * FROM gcm_users WHERE id = $id") or die(mysql_error());
                // return user details
                if (mysql_num_rows($result) > 0) {
                    return mysql_fetch_array($result);
                } else {
                    return false;
                }
            } else {
                return false;
            }
        }

        /**
         * Get user by email and password
         */
        public function getUserByEmail($email) {
            $result = mysql_query("SELECT * FROM gcm_users WHERE email = '$email' LIMIT 1");
            return $result;
        }

        /**
         * Getting all users
         */
        public function getAllUsers() {
            $result = mysql_query("select * FROM gcm_users");
            return $result;
        }

        /**
         * Check user is existed or not
         */
        public function isUserExisted($id) {
            $result = mysql_query("SELECT gcm_regid from gcm_users WHERE gcm_regid = '$id'");
            $no_of_rows = mysql_num_rows($result);
            if ($no_of_rows > 0) {
                // user existed
                return true;
            } else {
                // user not existed
                return false;
            }
        }

    public function deleteUser($id){
    $result=mysql_query("DELETE FROM gcm_users WHERE gcm_regid = '$id'");

    }    


    }

?>

配置.php：

<?php
/**
 * Database config variables
 */
define("DB_HOST", "localhost");
define("DB_USER", "root");
define("DB_PASSWORD", "");
define("DB_DATABASE", "gcm");

/*
 * Google API Key
 */
define("GOOGLE_API_KEY", "your_google_api_key_here"); // Place your Google API Key
?>

编辑：

我重写了PHP代码，进行了一些改进，并使用MySqli（而不是MySql）。它在Github中。