Laravel 同時連接多個數據庫

原文鏈接
上文說到thinkphp3.2同時連接兩個數據庫的文章，然後在總結下laravel同時連接
多個數據庫的實例，方便新手學習，db連接以及model連接。

配置.env 文件

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

DB_HOST_TEST=127.0.0.1
DB_PORT_TEST=3306
DB_DATABASE_TEST=database_test
DB_USERNAME_TEST=root
DB_PASSWORD_TEST=root

配置 config/database.php

// 默認連接mysql
'default' => env('DB_CONNECTION', 'mysql'),

'connections' => [

        'sqlite' => [
            'driver'   => 'sqlite',
            'database' => database_path('database.sqlite'),
            'prefix'   => '',
        ],

        'mysql' => [
            'driver'    => 'mysql',
            'host'      => env('DB_HOST', '127.0.0.1'),
            'port'      => env('DB_PORT', '3306'),
            'database'  => env('DB_DATABASE', 'database_name'),
            'username'  => env('DB_USERNAME', 'root'),
            'password'  => env('DB_PASSWORD', 'root'),
            'charset'   => 'utf8',
            'collation' => 'utf8_unicode_ci',
            'prefix'    => '',
            'strict'    => false,
        ],

        'mysql_test' => [
            'driver'    => 'mysql',
            'host'      => env('DB_HOST_TEST', '127.0.0.1'),
            'port'      => env('DB_PORT_TEST', '3306'),
            'database'  => env('DB_DATABASE_TEST', 'database_test'),
            'username'  => env('DB_USERNAME_TEST', 'root'),
            'password'  => env('DB_PASSWORD_TEST', 'root'),
            'charset'   => 'utf8',
            'collation' => 'utf8_unicode_ci',
            'prefix'    => '',
            'strict'    => false,
        ],

    ],

model實例(這個model將使用mysql_test連接)

<?php

namespace App\Model;

use Illuminate\Database\Eloquent\Model;

class Test extends Model
{
    // 數據庫'database_test'中的test表
    public    $table      = 'test';
    public    $timestamps = false;
    protected $connection = 'mysql_test';

}

model實例(這個model將採用默認的’mysql’連接)

<?php

namespace App\Model;

use Illuminate\Database\Eloquent\Model;

class Test extends Model
{
    // 數據庫'database'中的test表
    public    $table      = 'test';
    public    $timestamps = false;
    // 以下代碼可有可不、默認連接mysql
    protected $connection = 'mysql';

}


// a、這個model將採用默認的'mysql'連接
class UserModel extends Model
{
        // 數據庫'database'中的users表
        protected $table = "users";
}

 

調用model實例

// 以下是調用方法
Test::get();
Test::where('id',1)->first();

DB直接連接數據庫

// 連接mysql_test庫
DB::connection('mysql_test')->table('test')->where('id',1)->first();
// 連接mysql庫
DB::connection('mysq')->table('test')->where('id',1)->first();
// 連接mysql庫
DB::table('test')->where('id',1)->first();