我正在开发一个 React JS 项目，在该项目中我使用 React Router v4 创建客户端路由。
这是项目实时网址:https://gokhana.herokuapp.com/
在主页上，客户将搜索城市/位置(仅限印度城市)，每当客户选择位置( https://prnt.sc/jsy8rp )时，我想加载下一条路线，即 https://gokhana.herokuapp.com/restaurants .
我正在使用<Redirect />用于将页面重定向到 /restaurants路线。
当 /restaurants路线已加载，页面未正确加载，一切都一团糟。检查它是如何加载的 https://prnt.sc/jsy96i
现在，如果我重新加载相同的 URL，页面就会正确加载，没有任何问题 https://prnt.sc/jsya4t
重定向到<Redirect />的路线会产生问题，而重新加载相同的路线则可以正常工作。
我已经检查了 CSS 和 JS 文件，所有这些文件都已正确加载。
我无法弄清楚这个问题。
app.js 文件
import React from 'react';
import ReactDOM from 'react-dom';
import {Provider} from 'react-redux';
import store from './store';
import $ from 'jquery';
import 'bootstrap/dist/css/bootstrap.min.css';
import Routers from './routes/AppRouter';
//Import CSS files
import './styles/google-font.css';
import './styles/base.css';
ReactDOM.render(
<Provider store={store}>
<Routers />
</Provider>,
document.getElementById('root')
);
index.html 文件
<!DOCTYPE html>
<html>
<head>
<meta charset="UTF-8">
<meta name="viewport" content="width=device-width, initial-scale=1">
<title>GoKhana</title>
<link rel="icon" type="image/png" href="./images/favicon.png">
<link rel="stylesheet" type="text/css" href="./dist/styles.css">
</head>
<body>
<div id="root"></div>
<script src="https://code.jquery.com/jquery-2.2.4.min.js"></script>
<script src="https://maps.googleapis.com/maps/api/js?key=AIzaSyCmnIFpWp5ofkwDLZgCDLBat1VPEjOj_jA&libraries=places"></script>
<script src="./dist/bundle.js"></script>
<script src="./js/common_scripts_min.js"></script>
<script src="./js/functions.js"></script>
<script src="./js/modernizr.js"></script>
<script src="./js/cat_nav_mobile.js"></script>
<script>$('#cat_nav').mobileMenu();</script>
<script src="./js/ion.rangeSlider.js"></script>
<script src="./js/cat_nav_mobile.js"></script>
<script src="./js/theia-sticky-sidebar.js"></script>
<script src="./js/bootstrap3-wysihtml5.min.js"></script>
<script src="./js/dropzone.min.js"></script>
<script src="./js/tabs.js"></script>
<script src="./js/custom.js"></script>
</body>
</html>
AppRouter.js 文件
import React from 'react';
import {BrowserRouter, Route, Switch} from 'react-router-dom';
import HomePage from './../components/HomePage';
import AboutUs from './../components/AboutUs';
import ContactUs from './../components/ContactUs';
import PageNotFound from './../components/PageNotFound';
import RestaurantList from '../components/RestaurantList';
import RestaurantMenu from '../components/RestaurantMenu';
import UserDetails from '../components/UserDetails';
import OrderConfirmation from '../components/OrderConfirmation';
import CustomerAccount from '../components/CustomerAccount';
export default () => {
return (
<BrowserRouter>
<Switch>
<Route path="/" component={HomePage} exact={true}/>
<Route path="/about" component={AboutUs} />
<Route path="/contact" component={ContactUs} />
<Route path="/restaurants" component={RestaurantList} />
<Route path="/select-menu" component={RestaurantMenu} />
<Route path="/user-details" component={UserDetails} />
<Route path="/order-confirmation" component={OrderConfirmation} />
<Route path="/my-account" component={CustomerAccount} />
<Route component={PageNotFound} />
</Switch>
</BrowserRouter>
);
}
RestaurantList.js - 该组件很困惑
import React from 'react';
import Header from './sections/Header';
import Footer from './sections/Footer';
import ImageSubHeader from './sections/ImageSubHeader';
import Filters from './sections/Filters';
import DisplayRestaurants from './sections/DisplayRestaurants';
export default () => {
return (
<div>
<Header />
<ImageSubHeader title="Search your Favorite Restaurant" showSearch = "true" />
<div className="container margin_60_35">
<div className="row">
<Filters />
<DisplayRestaurants />
</div>
</div>
<Footer />
</div>
);
}
ImageSubHeader.js
import React from 'react';
import subHeaderImg from './../../images/web-images/mainbanner.jpg';
export default (props) => {
return (
<section className="parallax-window" id="short" data-parallax="scroll" data-image-src={subHeaderImg} data-natural-width="1400" data-natural-height="350">
<div id="subheader">
<div id="sub_content">
<h1>{props.title}</h1>
<p>{props.subTitle}</p>
{props.showSearch &&
(<form method="post" action="list_page.html">
<div id="custom-search-input">
<div className="input-group ">
<input type="text" className=" search-query" placeholder="Your Address or postal code" />
<span className="input-group-btn">
<input type="submit" className="btn_search" value="submit" />
</span>
</div>
</div>
</form>)
}
{props.showOrder &&
(
<div className="bs-wizard">
<div className={(props.orderId >=1) ? "col-xs-4 bs-wizard-step complete" : "col-xs-4 bs-wizard-step disabled"}>
<div className="text-center bs-wizard-stepnum"><strong>1.</strong> Your details</div>
<div className="progress"><div className="progress-bar"></div></div>
<a href="#0" className="bs-wizard-dot"></a>
</div>
<div className={(props.orderId >=2) ? "col-xs-4 bs-wizard-step complete" : "col-xs-4 bs-wizard-step disabled"}>
<div className="text-center bs-wizard-stepnum"><strong>2.</strong> Payment</div>
<div className="progress"><div className="progress-bar"></div></div>
<a href="cart_2.html" className="bs-wizard-dot"></a>
</div>
<div className={(props.orderId >=3) ? "col-xs-4 bs-wizard-step complete" : "col-xs-4 bs-wizard-step disabled"}>
<div className="text-center bs-wizard-stepnum"><strong>3.</strong> Finish!</div>
<div className="progress"><div className="progress-bar"></div></div>
<a href="cart_3.html" className="bs-wizard-dot"></a>
</div>
</div>
)
}
</div>
</div>
</section>
);
}
Filters.js
import React from 'react';
export default () => {
return (
<div className="col-md-3">
<div id="filters_col">
<a
data-toggle="collapse"
href="#collapseFilters"
aria-expanded="false"
aria-controls="collapseFilters"
id="filters_col_bt
">
Filters
<i className="icon-plus-1 pull-right"></i>
</a>
<div className="collapse" id="collapseFilters">
<div className="filter_type">
<h6>Distance</h6>
<input type="text" id="range" value="" name="range" />
<h6>Type</h6>
<ul>
<li><label><input type="checkbox" checked className="icheck" />All <small>(49)</small></label></li>
<li><label><input type="checkbox" className="icheck" />American <small>(12)</small></label><i className="color_1"></i></li>
<li><label><input type="checkbox" className="icheck" />Chinese <small>(5)</small></label><i className="color_2"></i></li>
<li><label><input type="checkbox" className="icheck" />Hamburger <small>(7)</small></label><i className="color_3"></i></li>
<li><label><input type="checkbox" className="icheck" />Fish <small>(1)</small></label><i className="color_4"></i></li>
<li><label><input type="checkbox" className="icheck" />Mexican <small>(49)</small></label><i className="color_5"></i></li>
<li><label><input type="checkbox" className="icheck" />Pizza <small>(22)</small></label><i className="color_6"></i></li>
<li><label><input type="checkbox" className="icheck" />Sushi <small>(43)</small></label><i className="color_7"></i></li>
</ul>
</div>
<div className="filter_type">
<h6>Rating</h6>
<ul>
<li><label><input type="checkbox" className="icheck" /><span className="rating">
<i className="icon_star voted"></i><i className="icon_star voted"></i><i className="icon_star voted"></i><i className="icon_star voted"></i><i className="icon_star voted"></i>
</span></label></li>
<li><label><input type="checkbox" className="icheck" /><span className="rating">
<i className="icon_star voted"></i><i className="icon_star voted"></i><i className="icon_star voted"></i><i className="icon_star voted"></i><i className="icon_star"></i>
</span></label></li>
<li><label><input type="checkbox" className="icheck" /><span className="rating">
<i className="icon_star voted"></i><i className="icon_star voted"></i><i className="icon_star voted"></i><i className="icon_star"></i><i className="icon_star"></i>
</span></label></li>
<li><label><input type="checkbox" className="icheck" /><span className="rating">
<i className="icon_star voted"></i><i className="icon_star voted"></i><i className="icon_star"></i><i className="icon_star"></i><i className="icon_star"></i>
</span></label></li>
<li><label><input type="checkbox" className="icheck" /><span className="rating">
<i className="icon_star voted"></i><i className="icon_star"></i><i className="icon_star"></i><i className="icon_star"></i><i className="icon_star"></i>
</span></label></li>
</ul>
</div>
<div className="filter_type">
<h6>Options</h6>
<ul className="nomargin">
<li><label><input type="checkbox" className="icheck" />Delivery</label></li>
<li><label><input type="checkbox" className="icheck" />Take Away</label></li>
<li><label><input type="checkbox" className="icheck" />Distance 10Km</label></li>
<li><label><input type="checkbox" className="icheck" />Distance 5Km</label></li>
</ul>
</div>
</div>
</div>
</div>
);
}
DisplayRestaurants.js
import React from 'react';
import GridListRestaurant from './GridListRestaurant';
export default () => {
return (
<div className="col-md-9">
<div id="tools">
<div className="row">
<div className="col-md-3 col-sm-3 col-xs-6">
<div className="styled-select">
<select name="sort_rating" id="sort_rating">
<option value="" selected>Sort by ranking</option>
<option value="lower">Lowest ranking</option>
<option value="higher">Highest ranking</option>
</select>
</div>
</div>
</div>
</div>
<GridListRestaurant />
<GridListRestaurant />
</div>
);
}
重定向逻辑 SearchLocationBar.js
import React from 'react';
import {connect} from 'react-redux';
import {Redirect} from 'react-router-dom';
import {setLocation} from './../../actions/locationActions';
import {toggleLoader} from './../../actions/loaderActions';
class SearchLocationBar extends React.Component {
location = {}
state = {
redirect : false
}
componentDidMount() {
let autocomplete = document.getElementById('autocomplete');
let GoogleMapsApi = new google.maps.places.Autocomplete((autocomplete), {
types: '(regions)',
componentRestrictions: {country: 'in'}
});
google.maps.event.addListener(GoogleMapsApi, 'place_changed', () => {
this.location = {};
const place = GoogleMapsApi.getPlace();
this.location.latitude = place.geometry.location.lat();
this.location.longitude = place.geometry.location.lng();
place.address_components.forEach((address) => {
if(address.types.includes('locality')) {
this.location.city = address.long_name;
} else if(address.types.includes('administrative_area_level_2')) {
this.location.city = address.long_name;
} else if(address.types.includes('administrative_area_level_1')) {
this.location.state = address.long_name;
}
});
this.props.setLocation(this.location);
localStorage.setItem('location',JSON.stringify(this.location));
this.setState({redirect: true});
});
}
render() {
return (
<form autoComplete="off" method="post">
<div id="custom-search-input">
<div className="input-group ">
<input
type="text"
className=" search-query"
placeholder="Your Address or postal code"
id="autocomplete"
/>
{this.state.redirect ? <Redirect to='/restaurants' /> : ''}
<span className="input-group-btn">
<input type="submit" className="btn_search" value="submit" />
</span>
</div>
</div>
</form>
);
}
}
const mapStateToProps = (state) => {
return state;
};
const mapDispatchToProps = {
setLocation,
toggleLoader
};
export default connect(mapStateToProps, mapDispatchToProps)(SearchLocationBar);
最佳答案
经过大量研究，我找到了问题的答案。
在 React Router 中，如果我们重定向到新路由，则不会加载 JS 库。 就我而言，我使用的是在页面加载完成后注入(inject) HTML 元素的插件。
现在，React 路由不会加载页面，因为这里的所有内容都是虚拟 DOM，所以这里的解决方案是在路由完成后加载 JS 库。
所以我用了loadjs包。
1) 安装
yarn add loadjs
2) 导入
import loadjs from 'loadjs';
3)在React组件的componentDidMount()中调用
loadjs('./js/modernizr.js', () => {});
这将解决问题。
关于javascript - React 路由器正在更改 URL，但无法正确加载网页，我们在Stack Overflow上找到一个类似的问题： https://stackoverflow.com/questions/50775476/