我想创建一个与 Slim 4 兼容的自定义错误页面/JSON 回复,当请求不存在的路由时返回。
我最近从 Slim 3 升级到 Slim 4。使用 Slim 3,我有一个完美完成这项工作的默认路由:
$app->any('/[{path:.*}]', function (Request $request, Response $response, array $args) {
// catching any other requests...
/* ... creating JSON error object and write it to $slimresponse ... */
return ($slimresponse);
});
但是,当我在 Slim 4 中执行此操作时,出现错误
Type: FastRoute\BadRouteException
Code: 0
Message: Cannot register two routes matching "/" for method "GET"
这显然意味着 Slim 将其识别为 GET / 的双重输入,这在 Slim 4 中是不允许的。
不幸的是,这篇未找到https://www.javaer101.com/en/article/13830039.html,我尝试添加
$app->notFound(function () use ($app) {
$app->response->setStatus(403);
echo "Forbidden";
//output 'access denied', redirect to login page or whatever you want to do.
});
到我的routes.php,但它不起作用:
Call to undefined method Slim\App::notFound()
HttpNotFoundExceptionhttps://www.slimframework.com/docs/v4/middleware/error-handling .html,没有任何成功。
非常感谢任何帮助。
提交问题后,我在这里找到了答案。
https://odan.github.io/2020/05/27/slim4-error-handling.html#捕捉-404-not-found-errors
这是我的新 middleware.php:
use Slim\App;
use Psr\Http\Message\ServerRequestInterface;
use Psr\Http\Server\RequestHandlerInterface;
use Slim\Exception\HttpNotFoundException;
use Slim\Middleware\ErrorMiddleware;
use Middlewares\TrailingSlash;
use Slim\Psr7\Response;
return function (App $app) {
// Parse json, form data and xml
$app->addBodyParsingMiddleware();
// Add the Slim built-in routing middleware
$app->addRoutingMiddleware();
// always add a trailing slash
$app->add(new TrailingSlash(true));
// Add BasePathMiddleware
$app->add(BasePathMiddleware::class);
// HttpNotFoundException
$app->add(function (ServerRequestInterface $request,
RequestHandlerInterface $handler) {
try {
return $handler->handle($request);
} catch (HttpNotFoundException $httpException) {
$response = (new Response())->withStatus(404);
$response->getBody()->write('404 Not found');
return $response;
}
});
// Catch exceptions and errors
$app->add(ErrorMiddleware::class);
};
对于每个正在寻找具有另一个异常类的扩展的人,请通过以下方式扩展上面的代码:
try {
return $handler->handle($request);
} catch (HttpNotFoundException $httpException) {
$response = (new Response())->withStatus(404);
$response->getBody()->write('404 Not found');
return $response;
} catch (HttpMethodNotAllowedException $httpException) {
$response = (new Response())->withStatus(405);
$response->getBody()->write('405 Method not allowed. Please use one of the following: '.implode(',',$httpException->getAllowedMethods()));
return $response;
}
其他异常类可以在https://github.com/slimphp/Slim/tree/4.x/Slim/Exception上找到
这是您获取和显示异常类以用于开发/调试目的的方法:
} catch (Exception $e) {
$response = (new Response())->withStatus(500);
$response->getBody()->write(get_class($e));
return $response;
}