如何在流明中使用多个数据库

Question

We've using Lumen for building API's , Now we need to access multiple databases.

Currently using .env for database config but unable to found the way to multiple databases in .env

where we need to read 2nd connection ...

Answer 1

First, you'll need to configure your connections. If you don't already have one you'll need to create a config directory in your project and add the file config/database.php . It might look like this:

<?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,
        ],
    ],
];

Once you've added your connection configurations, you can access them by getting the database manager object out of the container and calling ->connection('connection_name') .

// 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');

Hope this helps you!!

Answer 2

This also worked. In the current version of Lumen 5.7

config/database.php

<?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

Usage:

Model: protected $connection = 'sqlsrv2'; Other: ->connection('sqlsrv2')

I hope i help you!

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