React-Router 只有一个孩子 [英] React-Router only one child

问题描述

我不断收到错误消息:

<块引用>

一个路由器"可能只有一个子元素

使用 react-router 时.

我似乎无法弄清楚为什么这不起作用，因为它与他们在示例中显示的代码完全一样:快速入门

这是我的代码:

从'react'导入React；从 './Editorstore' 导入 Editorstore；从'./components/editor/App'导入应用程序；从 './components/baselayer' 导入 BaseLayer；从react-router-dom"导入{BrowserRouter 作为路由器，路由}；从'react-dom'导入{render}；const root = document.createElement('div');root.id = 'app';document.body.appendChild(root);const store = new Editorstore();const stylelist = ['https://maxcdn.bootstrapcdn.com/font-awesome/4.6.3/css/font-awesome.min.css', 'https://cdnjs.cloudflare.com/ajax/libs/semantic-ui/2.2.2/semantic.min.css', 'https://cdnjs.cloudflare.com/ajax/libs/animate.css/3.5.2/animate.min.css', 'https://api.tiles.mapbox.com/mapbox-gl-js/v0.33.1/mapbox-gl.css'];stylelist.map((link) => {const a = document.createElement('link');a.rel = '样式表';a.href = 链接；document.body.appendChild(a);返回空；});使成为((<路由器><路由精确路径="/";组件={BaseLayer}/><路由路径="/editor";组件={App} store={store}/></路由器>), document.querySelector('#app'));

解决方案

您必须将 Route 包裹在

(或 ).

render((<路由器><路由精确路径="/" component={BaseLayer}/><Route path="/editor" component={App} store={store}/></路由器>), document.querySelector('#app'));

应该是

render((<路由器><div><路由精确路径="/" component={BaseLayer}/><Route path="/editor" component={App} store={store}/>

</路由器>), document.querySelector('#app'));

jsfiddle/webpackbin

I keep on getting the error:

A 'Router' may have only one child element

when using react-router.

I can't seem to figure out why this is not working, since it's exactly like the code they show in their example: Quick Start

Here is my code:

import React from 'react';
import Editorstore from './Editorstore';
import App from './components/editor/App';
import BaseLayer from './components/baselayer';
import {BrowserRouter as Router, Route} from 'react-router-dom';
import {render} from 'react-dom';

const root = document.createElement('div');
root.id = 'app';
document.body.appendChild(root);

const store = new Editorstore();
const stylelist = ['https://maxcdn.bootstrapcdn.com/font-awesome/4.6.3/css/font-awesome.min.css', 'https://cdnjs.cloudflare.com/ajax/libs/semantic-ui/2.2.2/semantic.min.css', 'https://cdnjs.cloudflare.com/ajax/libs/animate.css/3.5.2/animate.min.css', 'https://api.tiles.mapbox.com/mapbox-gl-js/v0.33.1/mapbox-gl.css'];

stylelist.map((link) => {
    const a = document.createElement('link');
    a.rel = 'stylesheet';
    a.href = link;
    document.body.appendChild(a);
    return null;
});

render((
  <Router>
    <Route exact  path="/" component={BaseLayer} />
    <Route path="/editor" component={App} store={store} />
  </Router>
), document.querySelector('#app'));

解决方案

You have to wrap your Route's in a <div>(or a <Switch>).

render((
  <Router>
    <Route exact  path="/" component={BaseLayer} />
    <Route path="/editor" component={App} store={store} />
  </Router>
), document.querySelector('#app'));

should be

render((
  <Router>
    <div>
       <Route exact  path="/" component={BaseLayer} />
       <Route path="/editor" component={App} store={store} />
    </div>
  </Router>
), document.querySelector('#app'));

jsfiddle / webpackbin

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