如何在流明中使用多个数据库

Question

我们使用Lumen构建API，现在我们需要访问多个数据库。

目前使用.env进行数据库配置，但无法找到.env中多个数据库的方法

我们需要阅读第二个连接...

Answer 1

首先，您需要配置连接。如果您还没有，则需要在项目中创建config目录并添加文件config/database.php。它可能看起来像这样：

<?php

return [

   'default' => 'accounts',

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

        'mysql2' => [
            'driver'    => 'mysql',
            'host'      => env('DB2_HOST'),
            'port'      => env('DB_PORT'),
            'database'  => env('DB2_DATABASE'),
            'username'  => env('DB2_USERNAME'),
            'password'  => env('DB2_PASSWORD'),
            'charset'   => 'utf8',
            'collation' => 'utf8_unicode_ci',
            'prefix'    => '',
            'strict'    => false,
        ],
    ],
];

一旦添加了connection配置，就可以通过从容器中取出数据库管理器对象并调用->connection('connection_name')来访问它们。

// Use default connection
app('db')->connection()->select('xx');
DB::connection()->select('yy');

// Use mysql2 connection
app('db')->connection('mysql2')->select('xx');
DB::connection('mysql2')->select('yy');

希望这对你有所帮助!!

Answer 2

这也有效。在当前版本的Lumen 5.7中

配置/ database.php中

<?php

return [

    'default' => env('DB_CONNECTION', 'sqlsrv'),
    'migrations' => 'migrations',
    'connections' => [
        'sqlsrv' => [
            'driver' => 'sqlsrv',
            'host' => env('DB_HOST', 'localhost'),
            'port' => env('DB_PORT', '1433'),
            'database' => env('DB_DATABASE', 'forge'),
            'username' => env('DB_USERNAME', 'forge'),
            'password' => env('DB_PASSWORD', ''),
            'charset' => 'utf8',
            'prefix' => '',
            'prefix_indexes' => true,
        ],

        'sqlsrv2' => [
            'driver' => 'sqlsrv',
            'host' => env('DB_HOST', 'localhost'),
            'port' => env('DB_PORT', '1433'),
            'database' => env('DB_DATABASE2', 'forge'),
            'username' => env('DB_USERNAME', 'forge'),
            'password' => env('DB_PASSWORD', ''),
            'charset' => 'utf8',
            'prefix' => '',
            'prefix_indexes' => true,
        ],
    ],
];

.ENV

DB_CONNECTION=sqlsrv
DB_HOST=localhost
DB_PORT=1433
DB_DATABASE=database1
DB_USERNAME=username
DB_PASSWORD=password

DB_DATABASE2=database2

用法：

型号：protected $connection = 'sqlsrv2';其他：->connection('sqlsrv2')

我希望我帮助你！

参考：https://fideloper.com/laravel-multiple-database-connections