Reactjs React上的根路由错误
未捕获错误:根路由必须呈现单个元素。我不明白这是什么时候发生的。请告诉我,我不明白的是什么 menu.jsx:Reactjs React上的根路由错误,reactjs,routing,routes,jsx,Reactjs,Routing,Routes,Jsx,未捕获错误:根路由必须呈现单个元素。我不明白这是什么时候发生的。请告诉我,我不明白的是什么 menu.jsx: import React from 'react'; import ReactDOM from 'react-dom'; import { Link } from 'react-router' class Menu extends React.Component { render() { return ( <div>
import React from 'react';
import ReactDOM from 'react-dom';
import { Link } from 'react-router'
class Menu extends React.Component {
render() {
return (
<div>
<ul>
<Link to="/">Home</Link>
<Link to="/contacts">Contacts</Link>
<Link to="/about">About</Link>
</ul>
{this.props.children}
</div>
)
}
}
从“React”导入React;
从“react dom”导入react dom;
从“反应路由器”导入{Link}
类菜单扩展了React.Component{
render(){
返回(
家
联络
关于
{this.props.children}
)
}
}
关于.jsx(和其他组件):
从“React”导入React;
导出关于扩展React.Component的默认类{
render(){
返回(
关于
)
}
}
appStart.js
import React from 'react';
import ReactDOM from 'react-dom';
import Home from './app/templates/home';
import About from './app/templates/about';
import Contacts from './app/templates/contacts';
import Menu from './app/layouts/menu';
import { Route, Router, browserHistory, IndexRoute } from "react-router";
ReactDOM.render((
<Router history = {browserHistory}>
<Route path = "/" component = {Menu}>
<IndexRoute component = {Home} />
<Route path = "/home" component = {Home} />
<Route path = "/about" component = {About} />
<Route path = "/contacts" component = {Contacts} />
</Route>
</Router>
), app)
从“React”导入React;
从“react dom”导入react dom;
从“/app/templates/Home”导入主页;
从“/app/templates/About”导入关于;
从“./app/templates/Contacts”导入联系人;
从“./app/layouts/Menu”导入菜单;
从“react Router”导入{Route,Router,browserHistory,IndexRoute};
ReactDOM.render((
),app)
项目结构:
我认为问题出在您的
appStart
组件中,首先通过document.getElementById()
获取html元素,然后在其中呈现组件。试试这个:
ReactDOM.render((
<Router history = {browserHistory}>
<Route path = "/" component = {Menu}>
<IndexRoute component = {Home} />
<Route path = "/home" component = {Home} />
<Route path = "/about" component = {About} />
<Route path = "/contacts" component = {Contacts} />
</Route>
</Router>
), document.getElementById("app"))
ReactDOM.render((
),document.getElementById(“应用程序”))
定义此id“app”,并在html页面中包含捆绑文件,如下所示:
<div id="app"/>
<script src = "bundle.js"/>
我认为问题出在您的
appStart
组件中,首先通过document.getElementById()获取html元素,然后在其中呈现组件。试试这个:
ReactDOM.render((
<Router history = {browserHistory}>
<Route path = "/" component = {Menu}>
<IndexRoute component = {Home} />
<Route path = "/home" component = {Home} />
<Route path = "/about" component = {About} />
<Route path = "/contacts" component = {Contacts} />
</Route>
</Router>
), document.getElementById("app"))
ReactDOM.render((
),document.getElementById(“应用程序”))
定义此id“app”,并在html页面中包含捆绑文件,如下所示:
<div id="app"/>
<script src = "bundle.js"/>
可能是因为您忘记了在菜单.jsx中导出组件
export default class Menu extends React.Component {
// ... rest of the code
正如@mayank shukla指出的,您应该找到要在DOM中呈现应用程序的节点
ReactDOM.render((
<Router history = {browserHistory}>
<Route path = "/" component = {Menu}>
<IndexRoute component = {Home} />
<Route path = "/home" component = {Home} />
<Route path = "/about" component = {About} />
<Route path = "/contacts" component = {Contacts} />
</Route>
</Router>
), document.getElementById("app"));
ReactDOM.render((
),document.getElementById(“app”);
假设您的.html
文件有这样的内容,大概是因为您忘记了在菜单.jsx中导出组件
export default class Menu extends React.Component {
// ... rest of the code
正如@mayank shukla指出的,您应该找到要在DOM中呈现应用程序的节点
ReactDOM.render((
<Router history = {browserHistory}>
<Route path = "/" component = {Menu}>
<IndexRoute component = {Home} />
<Route path = "/home" component = {Home} />
<Route path = "/about" component = {About} />
<Route path = "/contacts" component = {Contacts} />
</Route>
</Router>
), document.getElementById("app"));
ReactDOM.render((
),document.getElementById(“app”);
假设你的.html
文件有这样的内容
@free sour,big thanx,soone,),document.getElementById(“app”);=,(app);-工作,并导出默认值。@free-sour,big-thanx,so-one,),document.getElementById(“app”);=,(app);-工作,并导出默认值。