React-router的小测试例子

最新推荐文章于 2023-07-10 23:12:16 发布

原创最新推荐文章于 2023-07-10 23:12:16 发布 · 363 阅读

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本文详细介绍了如何使用create-react-app创建项目，并在React应用中配置react-router-dom实现基础和嵌套路由跳转，包括条件渲染和参数传递。

生成项目的步骤以及流程：

npm install -g create-react-app
create-react-app demo-app
cd demo-app
npm install react-router-dom

在App.js中引入一下代码，只是普通的路由跳转

import React from "react";
import { BrowserRouter as Router, Route, Link } from "react-router-dom";

function Index() {
  return <h2>Home</h2>;
}

function About() {
  return <h2>About</h2>;
}

function Users() {
  return <h2>Users</h2>;
}

function AppRouter() {
  return (
    <Router>
      <div>
        <nav>
          <ul>
            <li>
              <Link to="/">Home</Link>
            </li>
            <li>
              <Link to="/about/">About</Link>
            </li>
            <li>
              <Link to="/users/">Users</Link>
            </li>
          </ul>
        </nav>

        <Route path="/" exact component={Index} />
        <Route path="/about/" component={About} />
        <Route path="/users/" component={Users} />
      </div>
    </Router>
  );
}

export default AppRouter;

带嵌套的路由跳转

<Route>有条件地在路径上呈现任何:id值。import React from "react";
import { BrowserRouter as Router, Route, Link } from "react-router-dom";

function App() {
  return (
    <Router>
      <div>
        <Header />

        <Route exact path="/" component={Home} />
        <Route path="/about" component={About} />
        <Route path="/topics" component={Topics} />
      </div>
    </Router>
  );
}

function Home() {
  return <h2>Home</h2>;
}

function About() {
  return <h2>About</h2>;
}

function Topic({ match }) {
  return <h3>Requested Param: {match.params.id}</h3>;
}

function Topics({ match }) {
  return (
    <div>
      <h2>Topics</h2>

      <ul>
        <li>
          <Link to={`${match.url}/components`}>Components</Link>
        </li>
        <li>
          <Link to={`${match.url}/props-v-state`}>Props v. State</Link>
        </li>
      </ul>

      <Route path={`${match.path}/:id`} component={Topic} />
      <Route
        exact
        path={match.path}
        render={() => <h3>Please select a topic.</h3>}
      />
    </div>
  );
}

function Header() {
  return (
    <ul>
      <li>
        <Link to="/">Home</Link>
      </li>
      <li>
        <Link to="/about">About</Link>
      </li>
      <li>
        <Link to="/topics">Topics</Link>
      </li>
    </ul>
  );
}

export default App;

参考地址