# 用于自定義全局異常處理 ```php use think\exception\Handle; use think\Log; use think\Request; use Exception; class ExceptionHandler extends Handle { private $code; private $msg; private $errorCode; /** * @param Exception $e * @return \think\Response|\think\response\Json */ public function render(Exception $e) { if ($e instanceof BaseException) { //如果是自定義異常，則控制http狀態碼，不需要記錄日志 //因為這些通常是因為客戶端傳遞參數錯誤或者是用戶請求造成的異常 //不應當記錄日志 $this->code = $e->code; $this->msg = $e->msg; $this->errorCode = $e->errorCode; } else{ // 如果是服務器未處理的異常，將http狀態碼設置為500，并記錄日志 if(config('app_debug')){ // 調試狀態下需要顯示TP默認的異常頁面，因為TP的默認頁面 // 很容易看出問題 return parent::render($e); } $this->code = 500; $this->msg = 'sorry，we make a mistake. (^o^)Y'; $this->errorCode = 999; $this->recordErrorLog($e); } $request = Request::instance(); $result = [ 'msg' => $this->msg, 'error_code' => $this->errorCode, 'request_url' => $request = $request->url() ]; return json($result, $this->code); } /* * 將異常寫入日志 */ private function recordErrorLog(Exception $e) { Log::init([ 'type' => 'File', 'path' => LOG_PATH, 'level' => ['error'] ]); Log::record($e->getMessage(),'error'); } } ```