如何将变量传递到子组件中,以便它们与React Router一起使用?

时间:2018-12-29 14:43:25

标签: javascript reactjs ecmascript-6 react-router

我在设置基本的React应用程序时遇到问题,该应用程序允许React Router在各个组件之间使用。当我在App.js中具有以下代码片段时,一切似乎都可以正常工作,但是,我无法将信息传递给子组件。

我试图像这样将JSX对象传递到组件中:

<Main component={Home} />

但是,当尝试访问Main子组件中的属性时,这似乎不起作用。

App.js

import React from 'react';
import './App.css';
import { NavLink, Switch, Route } from 'react-router-dom';
import Navigation from './components/navigation.js';
import Main from './components/main.js';

const App = () => (
  <div className='app'>
    <h1>Portfolio Website</h1>
    <Navigation />
    <Main home={Home} about={About} />
   </div>
);


const Home = () => (
  <div className='home'>
    <h1>Welcome to my portfolio website</h1>
    <p> Feel free to browse around and learn more about me.</p>
  </div>
);

const About = () => (
  <div className='about'>
    <h1>About Me</h1>
  </div>
);


export default App;

Main.js

import React, { Component } from 'react';
import { NavLink, Switch, Route } from 'react-router-dom';

const Main = () => (
    <Switch>
        <Route exact path='/' component={this.props.Home}></Route>
        <Route exact path='/about' component={this.props.About}></Route>
    </Switch>
);

export default Main;

Navigation.js

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

const Navigation = () => (
  <nav>
    <ul>
      <li><NavLink exact activeClassName="current" to='/'>Home</NavLink></li>
      <li><NavLink exact activeClassName="current" to='/about'>About</NavLink></li>
    </ul>
  </nav>
);

export default Navigation;

我希望我能够使用创建的导航来加载组件内容,就像不在单独的组件中一样。不确定我哪里出错了?谢谢

1 个答案:

答案 0 :(得分:1)

我根本不会做这样的事情。我认为您的主要组件是多余的。

这将使您的每个组件都通过此组件。

路由器本身就是一个组件,所以为什么不像下面这样:

import { BrowserRouter, Switch, Route } from "react-router-dom";
import Navigation from "./yournavigationcomponent"
import Home from "./home"
import About from "./about"

class App extends Component {
  render() {
    return (
        <BrowserRouter>
            <div>
                <Navigation />
                <Switch>
                  <Route exact path='/' component={Home}/>
                  <Route path='/about' component={About}/>
                </Switch>
            </div>
        </BrowserRouter>

    )
  }
}