Connection refused (SQL: select * from information_s chema.tables where table_schema = apidemo and table_name = migrations)
LARAVEL 执行：
$ php artisan migrate
报错 ,把 .env文件里的
DB_CONNECTION=mysql
DB_HOST=127.0.0.1
DB_PORT=3306
换成：
DB_CONNECTION=mysql
DB_HOST=localhost
DB_PORT=3306
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