基于 Guzzle, PHP HTTP client 实现请求时，当响应非 20x 时，无法获取到 $response 变量

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1、基于 Guzzle, PHP HTTP client 实现请求时，当响应非 20x 时，无法获取到 $response 变量。如图1



$response = $this->client->request('POST', $this->nlsApiUrl, [
	'json' => array_merge($input, [
		'appkey' => $this->nlsAppKey,
		'token' => $token
	])
]);



{
    "status_code": 500,
    "code": 400,
    "message": "Client error: `POST https://nls-gateway-cn-shanghai.aliyuncs.com/stream/v1/tts` resulted in a `400 Bad Request` response:\n{\"task_id\":\"eac8206190a0456f8742b4b8d9a4c29f\",\"result\":\"\",\"status\":40000001,\"message\":\"Meta:ACCESS_DENIED:The token '39f (truncated...)\n",
    "trace": {
        "line": 113,
        "file": "E:\\wwwroot\\object\\vendor\\guzzlehttp\\guzzle\\src\\Exception\\RequestException.php",
        "class": "GuzzleHttp\\Exception\\ClientException",
        "trace": [
            "#0 E:\\wwwroot\\object\\vendor\\guzzlehttp\\guzzle\\src\\Middleware.php(69): GuzzleHttp\\Exception\\RequestException::create(Object(GuzzleHttp\\Psr7\\Request), Object(GuzzleHttp\\Psr7\\Response), NULL, Array, NULL)",
            "#1 E:\\wwwroot\\object\\vendor\\guzzlehttp\\promises\\src\\Promise.php(204): GuzzleHttp\\Middleware::GuzzleHttp\\{closure}(Object(GuzzleHttp\\Psr7\\Response))",
            "#2 E:\\wwwroot\\object\\vendor\\guzzlehttp\\promises\\src\\Promise.php(153): GuzzleHttp\\Promise\\Promise::callHandler(1, Object(GuzzleHttp\\Psr7\\Response), NULL)",
            "#3 E:\\wwwroot\\object\\vendor\\guzzlehttp\\promises\\src\\TaskQueue.php(48): GuzzleHttp\\Promise\\Promise::GuzzleHttp\\Promise\\{closure}()",
            "#4 E:\\wwwroot\\object\\vendor\\guzzlehttp\\promises\\src\\Promise.php(248): GuzzleHttp\\Promise\\TaskQueue->run(true)",
            "#5 E:\\wwwroot\\object\\vendor\\guzzlehttp\\promises\\src\\Promise.php(224): GuzzleHttp\\Promise\\Promise->invokeWaitFn()",
            "#6 E:\\wwwroot\\object\\vendor\\guzzlehttp\\promises\\src\\Promise.php(269): GuzzleHttp\\Promise\\Promise->waitIfPending()",
            "#7 E:\\wwwroot\\object\\vendor\\guzzlehttp\\promises\\src\\Promise.php(226): GuzzleHttp\\Promise\\Promise->invokeWaitList()",
            "#8 E:\\wwwroot\\object\\vendor\\guzzlehttp\\promises\\src\\Promise.php(62): GuzzleHttp\\Promise\\Promise->waitIfPending()",
            "#9 E:\\wwwroot\\object\\vendor\\guzzlehttp\\guzzle\\src\\Client.php(187): GuzzleHttp\\Promise\\Promise->wait()",
            "#10 E:\\wwwroot\\object\\app\\Sdks\\AliYunNlsSdk.php(55): GuzzleHttp\\Client->request('POST', 'https://nls-gat...', Array)",
            "#11 E:\\wwwroot\\object\\app\\Services\\NlsService.php(46): App\\Sdks\\AliYunNlsSdk->postStreamTts(Array, '59f398841ef4429...')",
            "#12 E:\\wwwroot\\object\\app\\Http\\Controllers\\NlsController.php(52): App\\Services\\NlsService->tts(Array)",
            "#13 E:\\wwwroot\\object\\vendor\\laravel\\framework\\src\\Illuminate\\Routing\\Controller.php(54): App\\Http\\Controllers\\NlsController->tts()",
            "#14 E:\\wwwroot\\object\\vendor\\laravel\\framework\\src\\Illuminate\\Routing\\ControllerDispatcher.php(43): Illuminate\\Routing\\Controller->callAction('tts', Array)",
            "#15 E:\\wwwroot\\object\\vendor\\laravel\\framework\\src\\Illuminate\\Routing\\Route.php(259): Illuminate\\Routing\\ControllerDispatcher->dispatch(Object(Illuminate\\Routing\\Route), Object(App\\Http\\Controllers\\NlsController), 'tts')",
            "#16 E:\\wwwroot\\object\\vendor\\laravel\\framework\\src\\Illuminate\\Routing\\Route.php(204): Illuminate\\Routing\\Route->runController()",
            "#17 E:\\wwwroot\\object\\vendor\\laravel\\framework\\src\\Illuminate\\Routing\\Router.php(725): Illuminate\\Routing\\Route->run()",
            "#18 E:\\wwwroot\\object\\vendor\\laravel\\framework\\src\\Illuminate\\Pipeline\\Pipeline.php(141): Illuminate\\Routing\\Router->Illuminate\\Routing\\{closure}(Object(Illuminate\\Http\\Request))",
            "#19 E:\\wwwroot\\object\\vendor\\laravel\\framework\\src\\Illuminate\\Routing\\Middleware\\SubstituteBindings.php(50): Illuminate\\Pipeline\\Pipeline->Illuminate\\Pipeline\\{closure}(Object(Illuminate\\Http\\Request))",
            "#20 E:\\wwwroot\\object\\vendor\\laravel\\framework\\src\\Illuminate\\Pipeline\\Pipeline.php(180): Illuminate\\Routing\\Middleware\\SubstituteBindings->handle(Object(Illuminate\\Http\\Request), Object(Closure))",
            "#21 E:\\wwwroot\\object\\vendor\\laravel\\framework\\src\\Illuminate\\Auth\\Middleware\\Authenticate.php(44): Illuminate\\Pipeline\\Pipeline->Illuminate\\Pipeline\\{closure}(Object(Illuminate\\Http\\Request))",
            "#22 E:\\wwwroot\\object\\vendor\\laravel\\framework\\src\\Illuminate\\Pipeline\\Pipeline.php(180): Illuminate\\Auth\\Middleware\\Authenticate->handle(Object(Illuminate\\Http\\Request), Object(Closure), 'api')",
            "#23 E:\\wwwroot\\object\\vendor\\laravel\\framework\\src\\Illuminate\\Pipeline\\Pipeline.php(116): Illuminate\\Pipeline\\Pipeline->Illuminate\\Pipeline\\{closure}(Object(Illuminate\\Http\\Request))",
            "#24 E:\\wwwroot\\object\\vendor\\laravel\\framework\\src\\Illuminate\\Routing\\Router.php(726): Illuminate\\Pipeline\\Pipeline->then(Object(Closure))",
            "#25 E:\\wwwroot\\object\\vendor\\laravel\\framework\\src\\Illuminate\\Routing\\Router.php(703): Illuminate\\Routing\\Router->runRouteWithinStack(Object(Illuminate\\Routing\\Route), Object(Illuminate\\Http\\Request))",
            "#26 E:\\wwwroot\\object\\vendor\\laravel\\framework\\src\\Illuminate\\Routing\\Router.php(667): Illuminate\\Routing\\Router->runRoute(Object(Illuminate\\Http\\Request), Object(Illuminate\\Routing\\Route))",
            "#27 E:\\wwwroot\\object\\vendor\\laravel\\framework\\src\\Illuminate\\Routing\\Router.php(656): Illuminate\\Routing\\Router->dispatchToRoute(Object(Illuminate\\Http\\Request))",
            "#28 E:\\wwwroot\\object\\vendor\\laravel\\framework\\src\\Illuminate\\Foundation\\Http\\Kernel.php(190): Illuminate\\Routing\\Router->dispatch(Object(Illuminate\\Http\\Request))",
            "#29 E:\\wwwroot\\object\\vendor\\laravel\\framework\\src\\Illuminate\\Pipeline\\Pipeline.php(141): Illuminate\\Foundation\\Http\\Kernel->Illuminate\\Foundation\\Http\\{closure}(Object(Illuminate\\Http\\Request))",
            "#30 E:\\wwwroot\\object\\app\\Http\\Middleware\\QueryListenerMiddleware.php(30): Illuminate\\Pipeline\\Pipeline->Illuminate\\Pipeline\\{closure}(Object(Illuminate\\Http\\Request))",
            "#31 E:\\wwwroot\\object\\vendor\\laravel\\framework\\src\\Illuminate\\Pipeline\\Pipeline.php(180): App\\Http\\Middleware\\QueryListenerMiddleware->handle(Object(Illuminate\\Http\\Request), Object(Closure))",
            "#32 E:\\wwwroot\\object\\vendor\\laravel\\framework\\src\\Illuminate\\Foundation\\Http\\Middleware\\TransformsRequest.php(21): Illuminate\\Pipeline\\Pipeline->Illuminate\\Pipeline\\{closure}(Object(Illuminate\\Http\\Request))",
            "#33 E:\\wwwroot\\object\\vendor\\laravel\\framework\\src\\Illuminate\\Foundation\\Http\\Middleware\\TrimStrings.php(40): Illuminate\\Foundation\\Http\\Middleware\\TransformsRequest->handle(Object(Illuminate\\Http\\Request), Object(Closure))",
            "#34 E:\\wwwroot\\object\\vendor\\laravel\\framework\\src\\Illuminate\\Pipeline\\Pipeline.php(180): Illuminate\\Foundation\\Http\\Middleware\\TrimStrings->handle(Object(Illuminate\\Http\\Request), Object(Closure))",
            "#35 E:\\wwwroot\\object\\vendor\\laravel\\framework\\src\\Illuminate\\Foundation\\Http\\Middleware\\ValidatePostSize.php(27): Illuminate\\Pipeline\\Pipeline->Illuminate\\Pipeline\\{closure}(Object(Illuminate\\Http\\Request))",
            "#36 E:\\wwwroot\\object\\vendor\\laravel\\framework\\src\\Illuminate\\Pipeline\\Pipeline.php(180): Illuminate\\Foundation\\Http\\Middleware\\ValidatePostSize->handle(Object(Illuminate\\Http\\Request), Object(Closure))",
            "#37 E:\\wwwroot\\object\\vendor\\laravel\\framework\\src\\Illuminate\\Foundation\\Http\\Middleware\\PreventRequestsDuringMaintenance.php(86): Illuminate\\Pipeline\\Pipeline->Illuminate\\Pipeline\\{closure}(Object(Illuminate\\Http\\Request))",
            "#38 E:\\wwwroot\\object\\vendor\\laravel\\framework\\src\\Illuminate\\Pipeline\\Pipeline.php(180): Illuminate\\Foundation\\Http\\Middleware\\PreventRequestsDuringMaintenance->handle(Object(Illuminate\\Http\\Request), Object(Closure))",
            "#39 E:\\wwwroot\\object\\vendor\\laravel\\framework\\src\\Illuminate\\Http\\Middleware\\HandleCors.php(62): Illuminate\\Pipeline\\Pipeline->Illuminate\\Pipeline\\{closure}(Object(Illuminate\\Http\\Request))",
            "#40 E:\\wwwroot\\object\\vendor\\laravel\\framework\\src\\Illuminate\\Pipeline\\Pipeline.php(180): Illuminate\\Http\\Middleware\\HandleCors->handle(Object(Illuminate\\Http\\Request), Object(Closure))",
            "#41 E:\\wwwroot\\object\\vendor\\laravel\\framework\\src\\Illuminate\\Http\\Middleware\\TrustProxies.php(39): Illuminate\\Pipeline\\Pipeline->Illuminate\\Pipeline\\{closure}(Object(Illuminate\\Http\\Request))",
            "#42 E:\\wwwroot\\object\\vendor\\laravel\\framework\\src\\Illuminate\\Pipeline\\Pipeline.php(180): Illuminate\\Http\\Middleware\\TrustProxies->handle(Object(Illuminate\\Http\\Request), Object(Closure))",
            "#43 E:\\wwwroot\\object\\vendor\\laravel\\framework\\src\\Illuminate\\Pipeline\\Pipeline.php(116): Illuminate\\Pipeline\\Pipeline->Illuminate\\Pipeline\\{closure}(Object(Illuminate\\Http\\Request))",
            "#44 E:\\wwwroot\\object\\vendor\\laravel\\framework\\src\\Illuminate\\Foundation\\Http\\Kernel.php(165): Illuminate\\Pipeline\\Pipeline->then(Object(Closure))",
            "#45 E:\\wwwroot\\object\\vendor\\laravel\\framework\\src\\Illuminate\\Foundation\\Http\\Kernel.php(134): Illuminate\\Foundation\\Http\\Kernel->sendRequestThroughRouter(Object(Illuminate\\Http\\Request))",
            "#46 E:\\wwwroot\\object\\public\\index.php(52): Illuminate\\Foundation\\Http\\Kernel->handle(Object(Illuminate\\Http\\Request))",
            "#47 {main}"
        ]
    }
}

2、现阶段需要针对响应中的字段 status 的值进行判断，以做后续的逻辑处理。参考：https://docs.guzzlephp.org/en/stable/request-options.html#http-errors 。设置成 false 来禁用HTTP协议抛出的异常(如 4xx 和 5xx 响应)，默认情况下HTPP协议出错时会抛出异常。调整代码如下



$response = $this->client->request('POST', $this->nlsApiUrl, [
	'json' => array_merge($input, [
		'appkey' => $this->nlsAppKey,
		'token' => '39f03ee9a79445d4b2f714b61227b388'
	]),
	'http_errors' => false
]);

$contents = $response->getBody()->getContents();

print_r($contents);exit;

3、当服务端响应 400 时，不再抛出异常 GuzzleHttp\Exception\ServerException。符合预期。如图2

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基于 Guzzle, PHP HTTP client 实现请求时，当响应非 20x 时，无法获取到 $response 变量

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