我想在我的web.php文件中使用session变量。因为我想从session中根据current_index创建动态路由。并且current_index会根据不同的登录方式而改变。

$index = Session::get('current_index');

Route::prefix($index)->group(function () {
            Route::get('index', [SystemConfigController::class, 'index'])->name('systemConfig.index');
            Route::post('list', [SystemConfigController::class, 'index'])->name('systemConfig.list');
            Route::post('testmail', [SystemConfigController::class, 'testMail'])->name('systemConfig.testmail');
            Route::post('edittable', [SystemConfigController::class, 'editTable'])->name('systemConfig.edittable');
        });

你能帮我解决这个问题吗？
来自kernel.php文件的中间件组：

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,
            \App\Http\Middleware\Localization::class,
        ],

        'api' => [
            // \Laravel\Sanctum\Http\Middleware\EnsureFrontendRequestsAreStateful::class,
            'throttle:api',
            \Illuminate\Routing\Middleware\SubstituteBindings::class,
        ],
    ];

编辑如下：
我有这样的场景。我必须创建如下动态路由：

$index = Session::get('current_index');

如果$index是0，那么我的路由列表如下：

Route::prefix(0)->group(function () {
    Route::get('index', [SystemConfigController::class, 'index'])->name('systemConfig.index');
    Route::post('list', [SystemConfigController::class, 'index'])->name('systemConfig.list');
    Route::post('testmail', [SystemConfigController::class, 'testMail'])->name('systemConfig.testmail');
    Route::post('edittable', [SystemConfigController::class, 'editTable'])->name('systemConfig.edittable');
});

如果$index是1，那么我的路由列表如下：

Route::prefix(1)->group(function () {
    Route::get('index', [SystemConfigController::class, 'index'])->name('systemConfig.index');
    Route::post('list', [SystemConfigController::class, 'index'])->name('systemConfig.list');
    Route::post('testmail', [SystemConfigController::class, 'testMail'])->name('systemConfig.testmail');
    Route::post('edittable', [SystemConfigController::class, 'editTable'])->name('systemConfig.edittable');
});