Question

当我使用yii2和postgresql数据库时，我收到此错误。

SQLSTATE[HY000] [2002] No such file or directory

Caused by: PDOException

SQLSTATE[HY000] [2002] No such file or directory

我将文件main-local.php配置为：

<?php
return [
    'components' => [
        'db' => [
            'class' => 'yii\db\Connection',
            'dsn' => 'pgsql:host=127.0.0.1;port=5432;dbname=dbname',
            'username' => 'user',
            'password' => 'pass',
            'charset' => 'utf8',
        ],
        'mailer' => [
            'class' => 'yii\swiftmailer\Mailer',
            'viewPath' => '@common/mail',
            // send all mails to a file by default. You have to set
            // 'useFileTransport' to false and configure a transport
            // for the mailer to send real emails.
            'useFileTransport' => true,
        ],
    ],
];

顺便说一句，当我使用mysql时，它正在工作。

Answer 1

这显然是配置问题。

调用yii2提供的requirements page并检查是否安装了 PDO Postgresql 扩展程序。
让您的配置正确。 PostgreSQL与MySQL不同。每个数据库群集至少包含一个名为的数据库。数据库至少包含一个命名的架构，而架构又包含表格。

有了这些知识，你的main-local.php应该是这样的：

<?php
return [
    'components' => [
        'db' => [
            'class' => 'yii\db\Connection',
            'dsn' => 'pgsql:host=localhost;dbname=YOURDATABASE',
            'username' => 'YOURPOSTGRESUSERNAME',
            'password' => 'YOURPOSTGRESPASSWORD',
            'charset' => 'utf8',
            'schemaMap' => [
                'pgsql' => [
                  'class' => 'yii\db\pgsql\Schema',
                  'defaultSchema' => 'public' //specify your schema here, public is the default schema
                ]
            ], // PostgreSQL
        ],
        'mailer' => [
            'class' => 'yii\swiftmailer\Mailer',
            'viewPath' => '@common/mail',
            // send all mails to a file by default. You have to set
            // 'useFileTransport' to false and configure a transport
            // for the mailer to send real emails.
            'useFileTransport' => true,
        ],
    ],
];

Yii2无法连接到postgresql

1 个答案: