[英]Persistent Navigation React-Router
React的新手,使用React-Router尝试在我的应用程序中创建持久性导航时遇到麻烦。
使用create-react-app
和"react-router": "^3.0.2"
我试图在页面顶部仅显示一个带有两个链接的导航。 我一直收到的错误是Uncaught Error: <Link>s rendered outside of a router context cannot navigate.
index.js:
import React from 'react';
import ReactDOM from 'react-dom';
import { browserHistory } from 'react-router';
import { Router, Route } from 'react-router';
import Routes from './routes';
import App from './components/App';
import './index.css';
import Navigation from './components/Navigation';
ReactDOM.render(
<div>
<Navigation />
<Routes history={browserHistory} />
</div>,
document.getElementById('root')
);
导航/ index.js
import React, { Component } from 'react';
import { Link } from 'react-router';
class Navigation extends Component {
render() {
return (
<div>
<ul>
<li><Link to="about">About</Link></li>
<li><Link to="not-found">Not Found</Link></li>
</ul>
</div>
);
}
}
export default Navigation;
routes.js
import React from 'react';
import { Router, Route, IndexRoute, Link, browserHistory } from 'react-router';
import App from './components/App';
import About from './components/About';
import NotFound from './components/NotFound';
import Navigation from './components/Navigation';
const Routes = (props) => (
<div>
<Router {...props}>
<Route path="/" component={App} />
<Route path="/about" component={About}/>
<Route path="*" component={NotFound} />
</Router>
</div>
);
export default Routes;
我可以通过url(即localhost:8080 / about)进行导航,并呈现正确的页面。 但是无法弄清楚如何使导航正常工作并呈现正确的链接。
您应该将Navigation
组件作为App
组件的一部分而不是在index.js
呈现
App
看起来应该像
class App extends Component {
render() {
return (
<div>
<Navigation />
{this.props.children}
</div>
);
}
}
而且您的路线也需要稍作更改。
<Router {...props}>
<Route path="/" component={App}>
{/* If you have a home page in your App component already, move it to a Home component */}
<IndexRoute component={Home} />
<Route path="/about" component={About}/>
<Route path="*" component={NotFound} />
</Route>
</Router>
React路由器会将组件从子路由作为子级传递到父路由。
例如,查看其文档中的介绍示例 。
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