使用create-react-app,react-router-dom hot reloading

Question

我正在学习React和React Router.我使用创建了一个应用程序create-react-app,热重新加载工作正常,直到我开始使用react-router-dom.

这是我的package.json:

{
  "name": "my-app",
  "version": "0.1.0",
  "private": true,
  "dependencies": {
    "bulma": "^0.7.2",
    "react": "^16.6.0",
    "react-dom": "^16.6.0",
    "react-router-dom": "^4.3.1",
    "react-scripts": "2.0.5"
  },
  "scripts": {
    "start": "react-scripts start",
    "build": "react-scripts build",
    "test": "react-scripts test",
    "eject": "react-scripts eject"
  },
  "eslintConfig": {
    "extends": "react-app"
  },
  "browserslist": [
    ">0.2%",
    "not dead",
    "not ie <= 11",
    "not op_mini all"
  ]
}

index.js:

import React from 'react';
import ReactDOM from 'react-dom';
import { BrowserRouter as Router } from 'react-router-dom';
import App from './components/App/App';

const render = () => {
    ReactDOM.render(
        <Router>
            <App />
        </Router>,
        document.getElementById('root')
    );
};

render();

if (module.hot) {
    module.hot.accept('./components/App/App', () => {
        render();
    });
}

App.js:

import ...

const Home = () => (
  <div>
    <p className="is-size-1">Home</p>
  </div>
);

class App extends Component {
  render() {
    return (
      <Switch>
        <Route path="/" exact component={Home} />
        <Route path="/guests" exact component={TodaysGuests} />
      </Switch>
    );
  }
}

export default App;

将我的应用程序封装在BrowserRouter组件中后,热重新加载不再有效.我必须重新启动服务器才能看到任何更改.刷新页面不起作用.

热重装可能吗？是否使用了react-hot-loader必要的东西？

Answer 1

尝试使用以下内容更新您的index.js：

import ...

ReactDOM.render(
  <Router>
    <App />
  </Router>,
  document.getElementById("root")
)
if (module.hot) {
  module.hot.accept("./App", () => {
    ReactDOM.render(<Router><App /></Router>, document.getElementById("root"))
  })
}