概述
1、组件First.js下有子组件：
import Admin from './Admin' import FormCom from './FormCom' import One from './One' import ButtonCom from './ButtonCom' import MenuCom from './MenuCom' import StepsCom from './StepsCom' import TabsCom from './TabsCom' import TableCom from './TableCom' import MessageCom from './MessageCom' import NotificationCom from './NotificationCom' import ProgressCom from './ProgressCom' import SpinCom from './SpinCom' import BadgeCom from './BadgeCom'
First.js完整代码如下：
import React from 'react'
import { Layout, Menu } from 'antd';
import { UserOutlined, LaptopOutlined, NotificationOutlined } from '@ant-design/icons';
import { HashRouter, Route, Link } from 'react-router-dom'
import Admin from './Admin'
import FormCom from './FormCom'
import One from './One'
import ButtonCom from './ButtonCom'
import MenuCom from './MenuCom'
import StepsCom from './StepsCom'
import TabsCom from './TabsCom'
import TableCom from './TableCom'
import MessageCom from './MessageCom'
import NotificationCom from './NotificationCom'
import ProgressCom from './ProgressCom'
import SpinCom from './SpinCom'
import BadgeCom from './BadgeCom'
const { SubMenu } = Menu;
const { Header, Content, Sider } = Layout;
export default class First extends React.Component {
constructor() {
super();
}
//只展开当前父级菜单 begin
rootSubmenuKeys = ['sub1', 'sub2', 'sub3'];
state = {
openKeys: ['sub1'],
};
onOpenChange = openKeys => {
const latestOpenKey = openKeys.find(key => this.state.openKeys.indexOf(key) === -1);
if (this.rootSubmenuKeys.indexOf(latestOpenKey) === -1) {
this.setState({ openKeys });
} else {
this.setState({
openKeys: latestOpenKey ? [latestOpenKey] : [],
});
}
};
//只展开当前父级菜单 end
render() {
return (<div>
<Layout>
<HashRouter>
<Header className="header" style={{ position: 'fixed', zIndex: 1, width: '100%', paddingLeft: '20px'}}>
<div className="logo" style={{fontSize: '32px', color: '#ffffff', fontWeight: 'bold'}}>React App</div>
<Menu theme="dark" mode="horizontal" defaultSelectedKeys={['1']}>
{/*<Menu.Item key="1">nav 1</Menu.Item>
<Menu.Item key="2">nav 2</Menu.Item>
<Menu.Item key="3">nav 3</Menu.Item>*/}
</Menu>
</Header>
<Layout>
<Sider width={200} className="site-layout-background" style={{
overflow: 'auto',
height: '100vh',
position: 'fixed',
left: 0,
}}>
<Menu
theme="dark"
mode="inline"
defaultSelectedKeys={['2']}
defaultOpenKeys={['sub1']}
style={{ height: '100%', paddingTop: '60px', borderRight: 0 }}
onOpenChange={this.onOpenChange}
openKeys={this.state.openKeys}
>
<SubMenu key="sub1" icon={<UserOutlined />} title="subnav 1">
<Menu.Item key="1"><Link to={`${this.props.match.path}/admin`}>admin</Link></Menu.Item>
<Menu.Item key="2"><Link to={`${this.props.match.path}/form`}>form</Link></Menu.Item>
<Menu.Item key="3"><Link to={`${this.props.match.path}/one`}>One</Link></Menu.Item>
<Menu.Item key="4"><Link to={`${this.props.match.path}/menu`}>Menu</Link></Menu.Item>
</SubMenu>
<SubMenu key="sub2" icon={<LaptopOutlined />} title="subnav 2">
<Menu.Item key="5"><Link to={`${this.props.match.path}/step`}>Step</Link></Menu.Item>
<Menu.Item key="6"><Link to={`${this.props.match.path}/tabs`}>Tabs</Link></Menu.Item>
<Menu.Item key="7"><Link to={`${this.props.match.path}/table`}>Table</Link></Menu.Item>
<Menu.Item key="8"><Link to={`${this.props.match.path}/message`}>Message</Link></Menu.Item>
</SubMenu>
<SubMenu key="sub3" icon={<NotificationOutlined />} title="subnav 3">
<Menu.Item key="9"><Link to={`${this.props.match.path}/notification`}>Notification</Link></Menu.Item>
<Menu.Item key="10"><Link to={`${this.props.match.path}/progress`}>ProgressCom</Link></Menu.Item>
<Menu.Item key="11"><Link to={`${this.props.match.path}/spin`}>Spin</Link></Menu.Item>
<Menu.Item key="12"><Link to={`${this.props.match.path}/badge`}>Badge</Link></Menu.Item>
<Menu.Item key="13"><Link to={`${this.props.match.path}/button`}>Button</Link></Menu.Item>
</SubMenu>
</Menu>
</Sider>
<Layout style={{ padding: '84px 20px 20px', marginLeft: 200}}>
<Content
className="site-layout-background"
style={{
padding: 24,
margin: 0
}}
>
<Route path={`${this.props.match.path}/admin`} exact component={Admin}></Route>
<Route path={`${this.props.match.path}/form`} component={FormCom}></Route>
<Route path={`${this.props.match.path}/one`} component={One}></Route>
<Route path={`${this.props.match.path}/menu`} component={MenuCom}></Route>
<Route path={`${this.props.match.path}/step`} component={StepsCom}></Route>
<Route path={`${this.props.match.path}/tabs`} component={TabsCom}></Route>
<Route path={`${this.props.match.path}/table`} component={TableCom}></Route>
<Route path={`${this.props.match.path}/message`} component={MessageCom}></Route>
<Route path={`${this.props.match.path}/notification`} component={NotificationCom}></Route>
<Route path={`${this.props.match.path}/progress`} component={ProgressCom}></Route>
<Route path={`${this.props.match.path}/spin`} component={SpinCom}></Route>
<Route path={`${this.props.match.path}/badge`} component={BadgeCom}></Route>
<Route path={`${this.props.match.path}/button`} component={ButtonCom}></Route>
</Content>
</Layout>
</Layout>
</HashRouter>
</Layout>
</div>)
}
}
其中
${this.props.match.path}
是关键。
2、假设还有一个登录组件Login.js，代码如下：
import React from 'react'
import { Button } from 'antd';
export default class Login extends React.Component {
constructor() {
super();
}
redirectHandle = () => {
console.log("aaa");
this.props.history.push("/home");
}
render() {
return (<Button type="primary" onClick={()=>this.redirectHandle()}>Primary Button</Button>)
}
}
假设React项目用的是React脚手架搭建，则在src目录下的App.js文件中设置路由：
render() {
return (<HashRouter>
<Switch>
<Route exact={true} path="/login" component={Login} />
<Route path="/home" component={First} />
<Redirect to='/login' /> {/*/login和/home之外的路由直接跳转到/login*/}
</Switch>
</HashRouter>)
}
App.js完整代码如下：
import React from 'react';
import { notification } from 'antd'
import { HashRouter, Route, Switch, Redirect } from 'react-router-dom';
import First from './First';
import Login from './Login';
import './App.css';
class App extends React.Component {
constructor() {
super();
this.openNotificationWithIcon = type => {
notification[type]({
message: 'Notification Title',
description:
'This is the content of the notification. This is the content of the notification. This is the content of the notification.',
});
}
}
clickHandle() {
console.log("clicked!!!");
}
render() {
return (<HashRouter>
<Switch>
<Route exact={true} path="/login" component={Login} /> {/**exact 防止混路由混合 如：输入127.xx.xx.xx/home 中有/login页面*/}
<Route path="/home" component={First} />
<Redirect to='/login' />
</Switch>
</HashRouter>)
}
}
export default App;
项目目录结构如下：
项目预览效果如下：
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