SQLSTATE[HY000][2002]php_network_getaddresses:getaddrinfo失败：未知此类主机。（Laravel 8迁移错误）

安装livewire fresh的新laravel8 jetstream之后 当我运行命令php artisan migrate时 然后它给出了我终端上的错误

  SQLSTATE[HY000] [2002] php_network_getaddresses: getaddrinfo failed: No such host is known.  (SQL: select * from information_schema.tables where table_schema = lweb and table_name = migrations and table_type = 'BASE TABLE')

  at C:\xampp\htdocs\liveweb\vendor\laravel\framework\src\Illuminate\Database\Connection.php:678
    674▕         // If an exception occurs when attempting to run a query, we'll format the error
    675▕         // message to include the bindings with SQL, which will make this exception a
    676▕         // lot more helpful to the developer instead of just the database's errors.
    677▕         catch (Exception $e) {
  ➜ 678▕             throw new QueryException(
    679▕                 $query, $this->prepareBindings($bindings), $e
    680▕             );
    681▕         }
    682▕

  1   C:\xampp\htdocs\liveweb\vendor\laravel\framework\src\Illuminate\Database\Connectors\Connector.php:70
      PDOException::("PDO::__construct(): php_network_getaddresses: getaddrinfo failed: No such host is known. ")

  2   C:\xampp\htdocs\liveweb\vendor\laravel\framework\src\Illuminate\Database\Connectors\Connector.php:70
      PDO::__construct("mysql:host=mysql;port=3306;dbname=lweb", "root", "", [])
PS C:\xampp\htdocs\liveweb> 

问题解决 只需删除DB_HOST=mysql

到

问题解决 只需删除DB_HOST=mysql

到

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检查.env文件和config/database.php中的DB_HOST条目，对于您正在使用的数据库，这两个位置的值都应该是127.0.0.1，如果数据库服务器也在与Web服务器相同的机器上运行，那么您还没有启动apache和mysql yetPDO:：_constructmysql:HOST=mysql；端口=3306；错误中的dbname=lweb，root，[]显示.env文件中有DB_HOST=mysql，无法解析为主机地址-主机表示托管数据库的服务器的ip地址检查.env文件中的DB_HOST条目和正在使用的数据库的config/database.php，如果数据库服务器也与Web服务器运行在同一台机器上，则该值应为127.0.0.1。您尚未启动apache和mysql yetPDO:：\uu\u constructmysql:host=mysql；端口=3306；错误中的dbname=lweb，root，[]显示.env文件中有DB_HOST=mysql，无法解析为主机地址-主机表示承载数据库的服务器的ip地址

DB_CONNECTION=mysql
DB_HOST=localhost
DB_HOST=mysql
DB_PORT=3306
DB_DATABASE=lweb
DB_USERNAME=root
DB_PASSWORD=
  

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