How does React achieve nesting routes and dynamic route…

To achieve nested routing, you can use the React Router library. Here’s a simple example:

Firstly, install the React Router library.

npm install react-router-dom

Next, create a parent component with nested routes.

import React from 'react';
import { BrowserRouter as Router, Route, Switch } from 'react-router-dom';

import Home from './Home';
import About from './About';
import Contact from './Contact';
import Products from './Products';

const App = () => {
  return (
    <Router>
      <Switch>
        <Route exact path="/" component={Home} />
        <Route path="/about" component={About} />
        <Route path="/contact" component={Contact} />
        <Route path="/products" component={Products} />
      </Switch>
    </Router>
  );
};

export default App;

In this example, we have defined four paths, each corresponding to a different component. Under the /products path, we can further define child routes.

Next, create a child component with dynamic routing.

import React from 'react';
import { Link, Route, Switch, useRouteMatch } from 'react-router-dom';

import ProductDetail from './ProductDetail';
import ProductList from './ProductList';

const Products = () => {
  const { path, url } = useRouteMatch();

  return (
    <div>
      <h2>Products</h2>
      <ul>
        <li>
          <Link to={`${url}/product1`}>Product 1</Link>
        </li>
        <li>
          <Link to={`${url}/product2`}>Product 2</Link>
        </li>
      </ul>

      <Switch>
        <Route exact path={path}>
          <h3>Please select a product.</h3>
        </Route>
        <Route path={`${path}/:productId`} component={ProductDetail} />
      </Switch>
    </div>
  );
};

export default Products;

In this example, we are using the useRouteMatch hook to access the parent component’s path and URL. When rendering the child components, we utilize dynamic routing parameters (:productId) to match different product details.

Finally, create a component for displaying product details.

import React from 'react';
import { useParams } from 'react-router-dom';

const ProductDetail = () => {
  const { productId } = useParams();

  return (
    <div>
      <h3>Product Detail - {productId}</h3>
      {/* 显示产品详情 */}
    </div>
  );
};

export default ProductDetail;

This way, when you visit /products/product1, it will display Product Detail – product1.

With React Router’s route configuration and dynamic route parameters, we can achieve nested routes and dynamic routing.