如果使用react-router，可以使用这些代码将错误页面重定向到指定页面（例如，shopping.jsx），如下所示

import React from "react";
import { createBrowserRouter, RouterProvider } from "react-router-dom";

let router = {};

router = createBrowserRouter([
  {
    path: "admin/",
    element: <Admin />
  },
  {
    path: "register/",
    element: <Register />,
  },
  {
    path: "/",
    element: <Login />,
    // this element in case something went wrong
    errorElement: <App/>
  },
]);

const Router = <RouterProvider router={router} />;

export default Router;