Laravel 5-找不到类'DB' [英] Laravel 5 - Class 'DB' not found
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问题描述
我在app/http/controllers
中有ChatController
,就像这样:
namespace App\Http\Controllers;
use App\Http\Controllers\Controller;
use Ratchet\MessageComponentInterface;
use Ratchet\ConnectionInterface;
use DB;
class ChatController extends Controller implements MessageComponentInterface {
protected $clients;
function __construct() {
$this->clients = new \SplObjectStorage;
}
public function onOpen(ConnectionInterface $conn)
{
$this->clients->attach($conn);
}
public function onMessage(ConnectionInterface $conn, $msg)
{
foreach ($this->clients as $client)
{
if ($client !== $conn )
$client->send($msg);
DB::table('messages')->insert(
['message' => $msg]
);
}
}
public function onClose(ConnectionInterface $conn)
{
$this->clients->detach($conn);
}
public function onError(ConnectionInterface $conn, \Exception $e)
{
echo 'the following error occured: ' . $e->getMessage();
$conn->close();
}
}
我的根目录中有chatserver.php
文件,如下所示:
And I have chatserver.php
file in the root like so:
<?php
require 'vendor/autoload.php';
use Ratchet\Server\IoServer;
use Ratchet\Http\HttpServer;
use Ratchet\WebSocket\WsServer;
use App\Http\Controllers\ChatController;
$server = IoServer::factory(
new HttpServer(
new WsServer(
new ChatController()
)
),
8080
);
$server->run();
如果我删除
DB::table('messages')->insert(
['message' => $msg]
);
从ChatController
并启动chatserver.php
,它可以工作,但是如果我不删除它,则服务器将启动,但是一旦我发送一条消息,我就会收到此错误:
from the ChatController
and start chatserver.php
it works, but if I don't remove it then the server starts but as soon as I send a message I get this error:
Fatal error: Uncaught Error: Class 'DB' not found in C:\wamp\www\laraveltesting\app\Http\Controllers\ChatController.php:31
为什么不使用DB?我正在扩展laravel控制器.
Why won't it use DB? I am extending the laravel controller.
推荐答案
这个比较好
use Illuminate\Support\Facades\DB;
或者您可以在DB之前使用斜杠('/'),如下所示
Or you can use a slash('/') before DB like below
/DB::table('messages')->insert(
['message' => $msg]
);
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