szkp-map-service/routes/web.php

<?php

use Illuminate\Support\Facades\Route;

/*
|--------------------------------------------------------------------------
| Web Routes
|--------------------------------------------------------------------------
|
| Here is where you can register web routes for your application. These
| routes are loaded by the RouteServiceProvider and all of them will
| be assigned to the "web" middleware group. Make something great!
|
*/

Route::get('/', function () {
    return view('welcome');
});

/*
| 后台 Vue SPA（public/admin）：子路径需回退到 index.html，否则刷新或直接打开
| /admin/xxx 会得到 404。若静态资源已由 Nginx 直出，通常不会进入此路由。
*/
Route::get('/admin/{path?}', function (?string $path = null) {
    if ($path !== null && $path !== '') {
        $candidate = public_path('admin/'.$path);
        if (is_file($candidate)) {
            return response()->file($candidate);
        }
    }

    return response()->file(public_path('admin/index.html'));
})->where('path', '.*');