Laravel 如何知道 Request::wantsJson 是对 JSON 的请求?
我注意到 Laravel 有一个简洁的方法 Request::wantsJson
- 我假设当我发出请求,我可以传递信息来请求 JSON 响应,但我该怎么做,Laravel 使用什么标准来检测请求是否请求 JSON?
I noticed that Laravel has a neat method Request::wantsJson
- I assume when I make the request I can pass information to request a JSON response, but how do I do this, and what criteria does Laravel use to detect whether a request asks for JSON ?
推荐答案
它使用客户端发送的 Accept
标头来确定是否需要 JSON 响应.
It uses the Accept
header sent by the client to determine if it wants a JSON response.
让我们看看代码:p>
Let's look at the code :
public function wantsJson() {
$acceptable = $this->getAcceptableContentTypes();
return isset($acceptable[0]) && $acceptable[0] == 'application/json';
}
因此,如果客户端向 application/json
发送具有第一个可接受的内容类型的请求,则该方法将返回 true.
So if the client sends a request with the first acceptable content type to application/json
then the method will return true.
至于如何请求 JSON,您应该相应地设置 Accept
标头,这取决于您使用什么库来查询您的路由,这里有一些我知道的库示例:
As for how to request JSON, you should set the Accept
header accordingly, it depends on what library you use to query your route, here are some examples with libraries I know :
Guzzle (PHP):
GuzzleHttpget("http://laravel/route", ["headers" => ["Accept" => "application/json"]]);
cURL (PHP):
$curl = curl_init();
curl_setopt_array($curl, [CURLOPT_URL => "http://laravel/route", CURLOPT_HTTPHEADER => ["Accept" => "application/json"], CURLOPT_RETURNTRANSFER => true]);
curl_exec($curl);
请求(Python):
requests.get("http://laravel/route", headers={"Accept":"application/json"})
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