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我想呈現基於查詢字符串的反應組件。查詢字符串像測驗/ 1,測驗/ 2一樣在瀏覽器地址欄中更改,但相關組件不在呈現,而是每次都在重新加載頁面。反應路由器不匹配路由
我index.js是象下面這樣:
import ReactDOM from 'react-dom';
import React, { Component } from 'react'
import { BrowserRouter as Router, Route, Link, IndexRoute, hashHistory } from 'react-router-dom'
import App from './App';
import QuizInfo from './QuizInfo';
import QuizQuestions from './QuizQuestions';
import './index.css';
const NotFound =() => (
<h1>404.. This page is not found!</h1>)
ReactDOM.render(
(<Router history={hashHistory}>
<App>
<Route exact path="/" component={App}>
<Route path="/quiz" component={QuizInfo} >
</Route>
<Route path="/quiz/:id" component={QuizQuestions}>
</Route>
<Route path='*' component={NotFound} />
</Route>
</App>
</Router>),
document.getElementById('root')
);
我app.js就像下面我在哪裏的地圖功能渲染元素。
import React, { Component } from 'react';
import { Link } from 'react-router-dom'
import axios from 'axios';
import logo from './logo.svg';
import BaseData from './baseData';
import './App.css';
class App extends Component {
constructor(props) {
super(props);
this.state = {
quiz_list: [],
quiz_questions: [],
};
this.baseUrl = "http://localhost:8000/quiz/";
};
componentDidMount() {
var url = this.baseUrl+"quiz-list";
axios.get(url)
.then(res => {
const quiz_list = res.data.quizList;
console.log(res);
this.setState({ quiz_list });
});
}
render() {
return (
<div className="App">
<div className="App-header">
<img src={logo} className="App-logo" alt="logo" />
<h2>Welcome to Quiz App</h2>
</div>
<h4> Choose any quiz to attemp</h4>
<div className="quiz-list">
{this.state.quiz_list.map((quiz, index) =>
<li key={index}>
<Link to={`/quiz/${quiz.id}`}>{quiz.name}</Link>
</li>
)}
</div>
</div>
);
}
}
export default App;
感謝@win ..結束語路由列表爲解決我的問題。但我無法理解爲什麼?有必要在Switch中封裝路由? –
@Noone Switch基本上根據哪條路徑匹配來切換Route。我們不能像上面RR4中的例子那樣包裝路線。由於'/ quiz/12'會首先觸發'/ quiz'路由(因爲命令和交換機),所以'/ quiz'具有確切的路由也很重要, – Win