在 Laravel 中检索会话值返回 null

Question

我正在设置并尝试从 Laravel 应用程序中检索会话值。Vue Js 前端正在对 Laravel 端点进行 API 调用，该端点设置会话值。包含 Laravel 端点方法的控制器是：

<?php

namespace App\Http\Controllers;

use Illuminate\Http\Request;
use App\Http\Controllers\Controller;
Use Session;

use App\User;

class UserController extends Controller
{
    public function adduser(Request $request) {

        $user = User::where( 'sub', $request->sub )->first();

        if(!$user) {

            $user = new User();

            $user->nickname = $request->nickname;
            $user->name = $request->name;
            $user->sub = $request->sub;
            $user->api_token = $request->api_token;

            $user->save();

        }

        $user->api_token = $request->api_token;
        $user->save();

        return response()
            ->json([
                'done' => $user->api_token
            ]);

    }

    //The endpoint for this method is http://localhost:8000/api/set
    public function setSession(Request $request) {


        $request->session()->put('info', 'testing vue client again');
        Session::save();

        return response()
            ->json([
                'done' => session('info')
            ]);

    }
    //The endpoint for this method is: http://localhost:8000/api/get
    public function getSession(Request $request) {

        $value = $request->session()->get('info');
        return response()
            ->json([
                'done' => $value
            ]);

    }

}

会话数据已成功设置，但是当我尝试从该getSession()方法中检索此数据时，它返回 null。这是我用来尝试检索会话数据的 Vue Js/axios 代码片段

axios({
 method: 'get',
 url: 'http://localhost:8000/api/get',


}).then((res) => {
console.log(res.data)
})

我该如何解决这个问题？谢谢

Answer 1

默认情况下，routes/api.php 文件中的路由没有StartSession中间件，因为 api 调用被视为无状态。您可以将此中间件添加EncryptCookies到文件中的 api 中间件组app/Http/Kernel.php，如下所示，具体顺序如下：

protected $middlewareGroups = [
    'web' => [
        \App\Http\Middleware\EncryptCookies::class,
        \Illuminate\Cookie\Middleware\AddQueuedCookiesToResponse::class,
        \Illuminate\Session\Middleware\StartSession::class,
        // \Illuminate\Session\Middleware\AuthenticateSession::class,
        \Illuminate\View\Middleware\ShareErrorsFromSession::class,
        \App\Http\Middleware\VerifyCsrfToken::class,
        \Illuminate\Routing\Middleware\SubstituteBindings::class,
    ],

    'api' => [
        \App\Http\Middleware\EncryptCookies::class,
        \Illuminate\Cookie\Middleware\AddQueuedCookiesToResponse::class,
        \Illuminate\Session\Middleware\StartSession::class,
        'throttle:60,1',
        'bindings',
    ],
];

对我有用。另外，认为您可以将api组设置为与您的情况完全相同的web组。

并且不要忘记使用新配置再次设置会话变量。