react 使用手册

Create React App

npx create-react-app my-app
cd my-app
npm start

跨域

参考文档

const { createProxyMiddleware } = require('http-proxy-middleware');

module.exports = function(app) {
  app.use(
    '/api',
    createProxyMiddleware({
      target: 'http://localhost:5000',
      changeOrigin: true,
    })
  );
};

React Router

react-router-dom

import React from 'react'
import { BrowserRouter, Route, Routes, Navigate } from 'react-router-dom';
import Login from '../views/login/Login';
import Home from '../views/home/Home';
export default function IndexRouter() {
  function Auth() {
    return localStorage.getItem('token') ? <Home /> : <Navigate to='/login' replace />
  }

  return (
    <BrowserRouter>
      <Routes>
        <Route path='/login' element={<Login />} />
        <Route path='/' 
        element={<Auth><Home /></Auth>} />
      </Routes>
    </BrowserRouter>
  )
}