当我通过php文件提交数据时，它会通知注册的手机，但有一条空消息，只有没有消息内容。大多数尝试了所有在线可用的教程，但没有得到它。请帮忙。
服务器端代码：php文件
<?php
$con = mysql_connect("localhost", "umane", "pass");
if(!$con){
die('MySQL connection failed');
}
$db = mysql_select_db("dbname");
if(!$db){
die('Database selection failed');
}
$registatoin_ids = array();
$sql = "SELECT * FROM tblname";
$result = mysql_query($sql, $con);
while($row = mysql_fetch_assoc($result)){
array_push($registatoin_ids, $row['registration_id']);
}
// Set POST variables
$url = 'https://android.googleapis.com/gcm/send';
$message = array("Notice" => $_POST['message']);
$fields = array(
'registration_ids' => $registatoin_ids,
'data' => $message,
);
$headers = array(
'Authorization: key= MY API KEY',
'Content-Type: application/json'
);
// Open connection
$ch = curl_init();
// Set the url, number of POST vars, POST data
curl_setopt($ch, CURLOPT_URL, $url);
curl_setopt($ch, CURLOPT_POST, true);
curl_setopt($ch, CURLOPT_HTTPHEADER, $headers);
curl_setopt($ch, CURLOPT_RETURNTRANSFER, true);
// Disabling SSL Certificate support temporarly
curl_setopt($ch, CURLOPT_SSL_VERIFYPEER, false);
curl_setopt($ch, CURLOPT_POSTFIELDS, json_encode($fields));
// Execute post
$result = curl_exec($ch);
if ($result === FALSE) {
die('Curl failed: ' . curl_error($ch));
}
// Close connection
curl_close($ch);
echo $result;
?>
安卓代码：
public class GcmSender {
public static final String API_KEY = "My API KEY";
public static void main(String[] args) {
if (args.length < 1 || args.length > 2 || args[0] == null) {
System.err.println("usage: ./gradlew run -Pmsg='"MESSAGE'" [-Pto='"DEVICE_TOKEN'"]");
System.err.println("");
System.err.println("Specify a test message to broadcast via GCM. If a device's GCM registration token is'n" +
"specified, the message will only be sent to that device. Otherwise, the message 'n" +
"will be sent to all devices subscribed to the '"global'" topic.");
System.err.println("");
System.err.println("Example (Broadcast):'n" +
"On Windows: .''gradlew.bat run -Pmsg='"<Your_Message>'"'n" +
"On Linux/Mac: ./gradlew run -Pmsg='"<Your_Message>'"");
System.err.println("");
System.err.println("Example (Unicast):'n" +
"On Windows: .''gradlew.bat run -Pmsg='"<Your_Message>'" -Pto='"<Your_Token>'"'n" +
"On Linux/Mac: ./gradlew run -Pmsg='"<Your_Message>'" -Pto='"<Your_Token>'"");
System.exit(1);
}
try {
// Prepare JSON containing the GCM message content. What to send and where to send.
JSONObject jGcmData = new JSONObject();
JSONObject jData = new JSONObject();
jData.put("data", args[0].trim());
// Where to send GCM message.
if (args.length > 1 && args[1] != null) {
jGcmData.put("registration_ids", args[1].trim());
} else {
jGcmData.put("registration_ids", "/topics/global");
}
// What to send in GCM message.
jGcmData.put("data", jData);
// Create connection to send GCM Message request.
URL url = new URL("https://android.googleapis.com/gcm/send");
HttpURLConnection conn = (HttpURLConnection) url.openConnection();
conn.setRequestProperty("Authorization", "key=" + API_KEY);
conn.setRequestProperty("Content-Type", "application/json");
conn.setRequestMethod("POST");
conn.setDoOutput(true);
// Send GCM message content.
OutputStream outputStream = conn.getOutputStream();
outputStream.write(jGcmData.toString().getBytes());
// Read GCM response.
InputStream inputStream = conn.getInputStream();
String resp = IOUtils.toString(inputStream);
System.out.println(resp);
System.out.println("Check your device/emulator for notification or logcat for " +
"confirmation of the receipt of the GCM message.");
} catch (IOException e) {
System.out.println("Unable to send GCM message.");
System.out.println("Please ensure that API_KEY has been replaced by the server " +
"API key, and that the device's registration token is correct (if specified).");
e.printStackTrace();
}
}
}
接收器代码
/**
* Copyright 2015 Google Inc. All Rights Reserved.
*
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*/
package gcm.play.android.samples.com.gcmquickstart;
import android.app.NotificationManager;
import android.app.PendingIntent;
import android.content.Context;
import android.content.Intent;
import android.media.RingtoneManager;
import android.net.Uri;
import android.os.Bundle;
import android.support.v4.app.NotificationCompat;
import android.util.Log;
import com.google.android.gms.gcm.GcmListenerService;
public class MyGcmListenerService extends GcmListenerService {
private static final String TAG = "MyGcmListenerService";
/**
* Called when message is received.
*
* @param from SenderID of the sender.
* @param data Data bundle containing message data as key/value pairs.
* For Set of keys use data.keySet().
*/
// [START receive_message]
@Override
public void onMessageReceived(String from, Bundle data) {
String message = data.getString("data");
Log.d(TAG, "From: " + from);
Log.d(TAG, "Message: " + message);
if (from.startsWith("/topics/")) {
// message received from some topic.
} else {
// normal downstream message.
}
// [START_EXCLUDE]
/**
* Production applications would usually process the message here.
* Eg: - Syncing with server.
* - Store message in local database.
* - Update UI.
*/
/**
* In some cases it may be useful to show a notification indicating to the user
* that a message was received.
*/
sendNotification(message);
// [END_EXCLUDE]
}
// [END receive_message]
/**
* Create and show a simple notification containing the received GCM message.
*
* @param message GCM message received.
*/
private void sendNotification(String message) {
Intent intent = new Intent(this, MainActivity.class);
intent.addFlags(Intent.FLAG_ACTIVITY_CLEAR_TOP);
PendingIntent pendingIntent = PendingIntent.getActivity(this, 0 /* Request code */, intent,
PendingIntent.FLAG_ONE_SHOT);
Uri defaultSoundUri = RingtoneManager.getDefaultUri(RingtoneManager.TYPE_NOTIFICATION);
NotificationCompat.Builder notificationBuilder = new NotificationCompat.Builder(this)
.setSmallIcon(R.drawable.ic_stat_ic_notification)
.setContentTitle("E Protocol")
.setContentText(message)
.setAutoCancel(true)
.setSound(defaultSoundUri)
.setContentIntent(pendingIntent);
NotificationManager notificationManager =
(NotificationManager) getSystemService(Context.NOTIFICATION_SERVICE);
notificationManager.notify(0 /* ID of notification */, notificationBuilder.build());
}
}
你确定它正在检索PHP代码中的POST变量吗？尝试替换它：
$message = array("Notice" => $_POST['message']);
跟：
$message = array("Notice" => "testing");
同样在你的接收器中，你说
String message = data.getString("data");
但是您在 php 代码中将数据定义为"通知"，因此要检索数据，您必须说：
String message = data.getString("Notice");