错误与异常拦截

http控制器错误异常

在http控制器中出现错误,系统将使用默认异常处理进行输出至客户端,代码如下:

<?php
protected function hookThrowable(\Throwable $throwable,Request $request,Response $response)
{
    if(is_callable($this->httpExceptionHandler)){
        call_user_func($this->httpExceptionHandler,$throwable,$request,$response);
    }else{
        $response->withStatus(Status::CODE_INTERNAL_SERVER_ERROR);
        $response->write(nl2br($throwable->getMessage()."\n".$throwable->getTraceAsString()));
    }
}

可直接在控制器重写onException方法:

<?php
/**
 * Created by PhpStorm.
 * User: yf
 * Date: 2018/8/4
 * Time: 下午1:21
 */
namespace App\HttpController;
use App\ViewController;
use EasySwoole\Http\AbstractInterface\Controller;
use EasySwoole\Http\Message\Status;
class Base extends ViewController
{
    function index()
    {
        // TODO: Implement index() method.
        $this->actionNotFound('index');
    }
    function onException(\Throwable $throwable): void
    {
        var_dump($throwable->getMessage());
    }
    protected function actionNotFound(?string $action): void
    {
        $this->response()->withStatus(Status::CODE_NOT_FOUND);
        $this->response()->write('action not found');
    }
}

也可自定义异常处理文件:

<?php
namespace App;
use EasySwoole\Http\Request;
use EasySwoole\Http\Response;
class ExceptionHandler
{
    public static function handle( \Throwable $exception, Request $request, Response $response )
    {
        var_dump($exception->getTraceAsString());
    }
}

在initialize事件中DI注册异常处理:

public static function initialize()
{
    Di::getInstance()->set(SysConst::HTTP_EXCEPTION_HANDLER,[ExceptionHandler::class,'handle']);
}