SQLSTATE [HY000] [2002]连接尝试失败，因为一段时间后被连接方未正确响应，

问题描述

我尝试在我的 Laravel 5.6 项目中连接2个数据库，但出现了这样的错误

I try to connect 2 database in my Laravel 5.6 project, but i got error like this

我尝试了以下代码:

.env

第一个数据库连接(在我的本地服务器中)

DB_CONNECTION=mysql
DB_HOST=127.0.0.1
DB_PORT=3306
DB_DATABASE=thedaldb
DB_USERNAME=root
DB_PASSWORD=

第二个数据库连接(在实时服务器IP 18.188.209.59中)

DB_CONNECTION_SECOND=mysql
DB_HOST_SECOND= 18.188.209.59
DB_PORT_SECOND=3306
DB_DATABASE_SECOND=delivery_test_copied
DB_USERNAME_SECOND=testuser
DB_PASSWORD_SECOND=testuser@123

app/config/database.php

'connections' => [
    'onlineorder' => [
            'driver'    => env('DB_CONNECTION_SECOND'),
            'host'      => env('DB_HOST_SECOND'),
            'port'      => env('DB_PORT_SECOND'),
            'database'  => env('DB_DATABASE_SECOND'),
            'username'  => env('DB_USERNAME_SECOND'),
            'password'  => env('DB_PASSWORD_SECOND'),
        ],
]

app/Models/OnlineOrder/OnlineOrder.php

<?php
namespace App\Models\OnlineOrder;
use Illuminate\Database\Eloquent\Model;

class OnlineOrder extends Model
{
    protected $connection = 'onlineorder';

}

app/Http/Controllers/Onlineorder/AppOnlineOrderController.php

<?php

namespace App\Http\Controllers\Onlineorder;

use Symfony\Component\HttpKernel\Exception\HttpException;
use App\Http\Controllers\Controller;
use Illuminate\Support\Facades\Input;
use App\Models\OnlineOrder\OnlineOrder;
use Illuminate\Http\Response;
use Illuminate\Http\Request;
use Carbon\Carbon;
use Validator;
use Config;
use File;
use DB;


class AppOnlineOrderController extends Controller
{
    public function test($merchant_id)
    {
        $db_ext = DB::connection('onlineorder');
        $merchant = $db_ext->table('mt_merchant')->get(); //mt_merchant is table name
        print_r($db_ext);exit;
    }
}

推荐答案

IP地址始终会随时间变化...而不是使用定向IP，而是使用主域就像:

IP address always changes during time ... instead of using directed IP use main domainlike :

DB_HOST_SECOND=mydomain.com.sd

我认为这样做会

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