使用app目录下的provider.php

<?php

use app\ExceptionHandle;

return [
    'think\exception\Handle' => '\\app\\demo\\exception\\Http',
];

　　

应用目录下新建exception 新建 HttpException.php

<?php

namespace app\demo\exception;

use think\exception\Handle;
use think\Response;
use Throwable;

class Http extends Handle
{
    public $httpCode = 500;

    public function render($request, Throwable $e): Response

    {
        return show(config('code.error'), $e->getMessage(),[],$this->httpCode);
        //return parent::render($request, $e); // TODO: Change the autogenerated stub
    }
}