使用react.js显示bootstrap navbar
[英]display bootstrap navbar using react.js
问题描述
I have a very simple React.js project where I am trying to add a bootstrap navbar to the project, but I can't seem to figure out how to get the navbar to display on the page. 
我有一个非常简单的React.js项目，我试图在项目中添加一个bootstrap导航栏，但我似乎无法弄清楚如何让导航栏显示在页面上。 The navbar example I am referencing can be found here, http://codepen.io/zhaozhiming/pen/LNGyvR 我可以在这里找到我引用的导航栏示例， http：//codepen.io/zhaozhiming/pen/LNGyvR
The project looks like the following, 该项目如下所示，
index.html 的index.html
<!DOCTYPE html>
<html lang="en">
<head>
<meta charset="UTF-8">
<meta name="viewport" content="width=device-width, initial-scale=1">
<link rel="stylesheet" href="https://maxcdn.bootstrapcdn.com/bootstrap/3.3.7/css/bootstrap.min.css">
<title>My super cool title.</title>
</head>
<body>
<div id="root"></div>
<script src="https://cdnjs.cloudflare.com/ajax/libs/jquery/3.1.1/jquery.min.js"></script>
<script src="https://maxcdn.bootstrapcdn.com/bootstrap/3.3.7/js/bootstrap.min.js" integrity="sha384-Tc5IQib027qvyjSMfHjOMaLkfuWVxZxUPnCJA7l2mCWNIpG9mGCD8wGNIcPD7Txa" crossorigin="anonymous"></script>
<script src="bundle.js" ></script>
</body>
</html>
index.js index.js
import React from 'react';
import ReactDOM from 'react-dom';
import App from './components/App.js';
ReactDOM.render(<App />, document.getElementById('root'));
App.js App.js
import React, {PropTypes} from 'react';
import styles from './App.css';
import NavBarTest from './common/NavBar-test';
const App = () => {
return (
<div id="parent">
<div>Hello, App!</div>
<NavBarTest {...NavBarTest} />
</div>
)
}
export default App;
Navbar-test.js 导航栏，test.js
import React from 'react';
// create classes
var NavBar = React.createClass({
render: function(){
return(
<nav className="navbar navbar-inverse">
<div className="container-fluid">
<div className="navbar-header">
<button type="button" className="navbar-toggle collapsed" data-toggle="collapse" data-target="#navbar-collapse" aria-expanded="false">
<span className="sr-only">Toggle navigation</span>
<span className="icon-bar"></span>
<span className="icon-bar"></span>
<span className="icon-bar"></span>
</button>
<NavBrand linkTo={this.props.brand.linkTo} text={this.props.brand.text} />
</div>
<div className="collapse navbar-collapse" id="navbar-collapse">
<NavMenu links={this.props.links} />
</div>
</div>
</nav>
);
}
});
var NavBrand = React.createClass({
render: function(){
return (
<a className="navbar-brand" href={this.props.linkTo}>{this.props.text}</a>
);
}
});
var NavMenu = React.createClass({
render: function(){
var links = this.props.links.map(function(link){
if(link.dropdown) {
return (
<NavLinkDropdown links={link.links} text={link.text} active={link.active} />
);
}
else {
return (
<NavLink linkTo={link.linkTo} text={link.text} active={link.active} />
);
}
});
return (
<ul className="nav navbar-nav">
{links}
</ul>
);
}
});
var NavLinkDropdown = React.createClass({
render: function(){
var active = false;
var links = this.props.links.map(function(link){
if(link.active){
active = true;
}
return (
<NavLink linkTo={link.linkTo} text={link.text} active={link.active} />
);
});
return (
<li className={"dropdown " + (active ? "active" : "")}>
<a href="#" className="dropdown-toggle" data-toggle="dropdown" role="button" aria-haspopup="true" aria-expanded="false">
{this.props.text}
<span className="caret"></span>
</a>
<ul className="dropdown-menu">
{links}
</ul>
</li>
);
}
});
var NavLink = React.createClass({
render: function(){
return(
<li className={(this.props.active ? "active" : "")}><a href={this.props.linkTo}>{this.props.text}</a></li>
);
}
});
// set data
var navbar = {};
navbar.brand =
{linkTo: "#", text: "React Bootstrap Navbar"};
navbar.links = [
{linkTo: "#", text: "Link 1"},
{linkTo: "#", text: "Link 2"},
{dropdown: true, text: "Dropdown", links: [
{linkTo: "#", text: "Dropdown Link 1"},
{linkTo: "#", text: "Dropdown Link 2", active: true}
]}
];
export default NavBar;
Finally, the page appears to render, but I am seeing the following error / warning message in the browser console. 最后，页面似乎呈现，但我在浏览器控制台中看到以下错误/警告消息。 Any help on how I can get this navbar to display on the page would greatly be appreciated. 任何有关如何让这个导航栏显示在页面上的帮助将非常感激。
2 个解决方案
解决方案1
3 已采纳 2017-03-29 20:01:33
According to the structure you showed, you should render NavBar in App component because you are default exporting NavBar from Navbar-test.js file. 根据您显示的结构，您应该在App组件中呈现NavBar ，因为您是默认从Navbar-test.js文件导出NavBar 。 One more this in NavBar component you are accessing the values by this.props.brand so you need to define the var navbar data ( data that you defined in the last of app.js file ) in app.js file, Use this in app.js file, it will work: 还有一个在NavBar组件中你正在通过this.props.brand访问这些值，所以你需要在app.js文件中定义var navbar数据（ 你在app.js文件的最后一个文件中定义的数据 ），在app.js使用它app.js文件，它会工作：
import React, {PropTypes} from 'react';
import styles from './App.css';
import NavBar from './common/NavBar-test';
const App = () => {
return (
<div id="parent">
<div>Hello, App!</div>
<NavBar {...navbar}/>
</div>
)
}
var navbar = {};
navbar.brand = {
linkTo: "#",
text: "React Bootstrap Navbar"
};
navbar.links = [
{
linkTo: "#",
text: "Link 1"
},
{
linkTo: "#",
text: "Link 2"
},
{
dropdown: true,
text: "Dropdown",
links: [
{
linkTo: "#",
text: "Dropdown Link 1"
},
{
linkTo: "#",
text: "Dropdown Link 2",
active: true
}
]
}
];
Check the working code: http://codepen.io/zhaozhiming/pen/LNGyvR?editors=0010 检查工作代码： http ： //codepen.io/zhaozhiming/pen/LNGyvR？edit = 0010
解决方案2
1 2017-03-29 20:03:58
If this is for learning then do go ahead and create them all! 如果这是为了学习，那么请继续创建它们！ Else I will suggest using react-bootstrap 否则我会建议使用react-bootstrap
https://react-bootstrap.github.io/components/navbar/ https://react-bootstrap.github.io/components/navbar/
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