new_api/app/Providers/AppServiceProvider.php

<?php

namespace App\Providers;

use App\Models\User;
use Illuminate\Support\ServiceProvider;
use Prettus\Repository\Providers\RepositoryServiceProvider;

class AppServiceProvider extends ServiceProvider
{
    /**
     * Register any application services.
     *
     * @return void
     */
    public function register()
    {
        $this->app->register(RepositoryServiceProvider::class);
        $this->app->singleton('getUserInstance', function (){
            return new User();
        });
    }

    /**
     * Bootstrap any application services.
     *
     * @return void
     */
    public function boot()
    {
        \Schema::defaultStringLength(191);
        // 打印所有sql
        if(config('app.db_log')) {
            \DB::listen(function($query) {
                // 先替换sql中的 % 避免 vsprintf 当成参数解析报错  Too few arguments
                $tmp = str_replace('%', '(no-vsprintf)', $query->sql);
                // \Log::info($tmp);
                $tmp = str_replace('?', '"'.'%s'.'"', $tmp);
                // \Log::info($tmp);
                $tmp = vsprintf($tmp, $query->bindings);
                $tmp = str_replace("\\","",$tmp);
                // 还原 %
                $tmp = str_replace('(no-vsprintf)', '%', $tmp);
                \Log::info($tmp);
                //Log::info($tmp."\n\n\t");
           });
       }
    }
}