react怎么请求部分刷新

//import React from 'react'; 引入类
//import { Component } from 'react';  引入对象
import React, { Component } from 'react';
import {HashRouter, Route, Switch} from 'react-router-dom';

//引入布局和子组件
import BasicLayout from '../layout/layout';
import Analysis from '../coms/Analysis';
import Monitor from '../coms/Monitor';
import Workplace from '../coms/Workplace';

//分配路由
const BasicRoute = () => (
    <HashRouter>
        <Switch>
            <Route exact path="/" component={BasicLayout}/>
            <Route exact path="/Analysis" component={Analysis}/>
            <Route  path="/Monitor" component={Monitor}/>
            <Route  path="/Workplace" component={Workplace}/>
        </Switch>
    </HashRouter>
);

export default BasicRoute;

import React, { Component } from 'react';
import  {Layout ,Menu,Icon} from 'antd';
import { Router, Route, Link,HashRouter } from 'react-router-dom'
import 'antd/dist/antd.min.CSS'
import BasicRoute from '../routes/router';

const { Header, Footer, Sider, Content } = Layout;

export default class BasicLayout extends Component {
  render() {
    return (
        <Layout>
        <Sider width={256} style={{ minHeight: '100vh', color: 'white' }}>
            
            <Menu theme="dark" mode="inline" >
                {}
                <Menu.Item><Link to="/Analysis">Item1</Link></Menu.Item>
            </Menu>
            
        </Sider>
        <Layout >
          <Header style={{ background: '#fff', textAlign: 'center', padding: 0 }}>Header</Header>
          <Content style={{ margin: '24px 16px 0' }}>
            <div style={{ padding: 24, background: '#fff', minHeight: 360 }}>
              {}
              {this.props.children}
              
            </div>
          </Content>
          <Footer style={{ textAlign: 'center' }}>Ant Design ©2018 Created by Ant UED</Footer>
        </Layout>
      </Layout>
    )
  }
}