无法在 MySQL 数据库中存储 Firebase 令牌

Question

我不知道哪里出错了。我需要获取 firebase 令牌并将其存储在我的数据库中，并通过使用这些令牌向这些设备发送通知。下面是我的代码。我真的需要一些帮助。

MainActivity.java

public class MainActivity extends AppCompatActivity {



@Override
protected void onCreate(Bundle savedInstanceState) {

    super.onCreate(savedInstanceState);
    setContentView(R.layout.activity_main);

    FirebaseInstanceId.getInstance().getToken();
    FirebaseMessaging.getInstance();


}

}

FirebaseInstanceIDService.java

public class FirebaseInstanceIDService extends 
FirebaseInstanceIdService {

@Override
public void onTokenRefresh() {

    String token = FirebaseInstanceId.getInstance().getToken();
    Log.e("Token :",token);
    registerToken(token);
}

private void registerToken(String token) {

    OkHttpClient client = new OkHttpClient();
    RequestBody body = new FormBody.Builder()
            .add("Token",token)
            .build();

    Request request = new Request.Builder()
            .url("http://localhost/notify.php")
            .post(body)
            .build();

    try {
        client.newCall(request).execute();
    } catch (IOException e) {
        e.printStackTrace();
    }
}
}

FirebaseMessagingService.java

public class FirebaseMessagingService extends 

com.google.firebase.messaging.FirebaseMessagingService{

@Override
public void onMessageReceived(RemoteMessage remoteMessage) {

    showNotification(remoteMessage.getData().get("message"));
}

private void showNotification(String message) {

    Intent i = new Intent(this,MainActivity.class);
    i.addFlags(Intent.FLAG_ACTIVITY_CLEAR_TOP);

    PendingIntent pendingIntent = PendingIntent.getActivity(this,0,i,PendingIntent.FLAG_UPDATE_CURRENT);

    NotificationCompat.Builder builder = new NotificationCompat.Builder(this)
            .setAutoCancel(true)
            .setContentTitle("FCM Test")
            .setContentText(message)
            .setSmallIcon(R.drawable.gas45)
            .setContentIntent(pendingIntent);

    NotificationManager manager = (NotificationManager) 
getSystemService(NOTIFICATION_SERVICE);

    manager.notify(0,builder.build());
}


}

notify.php

<?php 
if (isset($_POST["Token"])) {

       $fcm_Token=$_POST["Token"];
       $conn = mysqli_connect("localhost","root","","fcm") or 
 die("Error connecting");
       $q="INSERT INTO users (Token) VALUES ( '$fcm_Token')"
          ."ON DUPLICATE KEY UPDATE Token = '$fcm_Token';";

  mysqli_query($conn,$q) or die(mysqli_error($conn));
  mysqli_close($conn);
}
?>

Answer 1

请更改您的查询

   $q="INSERT INTO users (Token) VALUES ( '$fcm_Token')"
      ."ON DUPLICATE KEY UPDATE Token = '$fcm_Token';";

到这里

$q="INSERT INTO users (Token) VALUES ( '".$fcm_Token."')"
          ."ON DUPLICATE KEY UPDATE Token = '".$fcm_Token."';";

我认为您在附加变量语法的 PHP 字符串中犯了错误。 您应该像这样附加$fcm_Token，因为您已经使用. 运算符附加了字符串。

请试试这个。

Answer 2

您可以查看

1. 在没有代理的情况下检查您的互联网连接并打开互联网连接
2. 用新的google-service.json 替换你可以在 firebaseconsol 中得到它
3. 请检查您的设备中是否有 google play 服务，它是否可以正常工作，如果没有 google play 服务，firebase 将无法工作

检查-FireBaseInstanceId service does not get registered

您是否在 AndroidManifiest.xml 文件中注册了 Firebase 服务

<!-- Firebase Notifications -->
        <service
            android:name="com.indus.corelib.notification.FirebaseMessagingService"
            android:exported="false" >
            <intent-filter>
                <action android:name="com.google.firebase.MESSAGING_EVENT" />
            </intent-filter>
        </service>
        <service
            android:name="com.indus.corelib.notification.FirebaseIDService"
            android:exported="false" >
            <intent-filter>
                <action android:name="com.google.firebase.INSTANCE_ID_EVENT" />
            </intent-filter>
        </service>

请关注step 一颗花药example 和best 一颗祝你好运

Answer 3

onTokenRefresh() 已弃用，获取令牌的最佳方法是：

   FirebaseInstanceId.getInstance().getInstanceId().addOnSuccessListener(MainActivity.this, new OnSuccessListener<InstanceIdResult>() {
            @Override
            public void onSuccess(InstanceIdResult instanceIdResult) {
                String newToken = instanceIdResult.getToken();
                Log.e("newToken", newToken);
                SharedPreferences.Editor editor = getSharedPreferences("TOKEN_PREF", MODE_PRIVATE).edit();
                if (token!=null){
                    storetoken(newToken);
                }

            }
        });