react怎么请求部分刷新

时间：2022-12-30 13:46

react请求部分刷新的实现方法：1、引入布局和子组件；2、分配路由，代码如“const BasicRoute = () => (...)”；3、定义项目的link；4、用“BasicLayout”标签包裹，将内容传到“layout.js”的“this.props.children”部分即可。

本教程操作环境：Windows10系统、react18.0.0版、Dell G3电脑。

react怎么请求部分刷新？

React实现局部刷新

【项目结构】

流程：入口文件 -> 路由 -> layout -> Analysi/Monitor/Workspace

1.入口文件 -> src/index.js

2.组件 -> src/coms

3.布局 -> src/layout

4.路由 -> src/routes

【流程解析】

流程：入口文件 -> 路由 -> layout -> Analysi/Monitor/Workspace

1.路由部分

//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;

2.布局部分（重点）

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" >
                {/*定义了项目的link，会按照路由走*/}
                <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 }}>
              {/*Analysis.js文件引用了BasicLayout，并把自己的全部子节点(子组件)传过来*/}
              {this.props.children}
              
            </div>
          </Content>
          <Footer style={{ textAlign: 'center' }}>Ant Design ©2018 Created by Ant UED</Footer>
        </Layout>
      </Layout>
    )
  }
}

3.子组件（Analysis.js）（出错点）

import React from 'react';
import BasicLayout from '../layout/layout';
export default () => {    //用BasicLayout标签包裹，内容传到layout.js的this.props.children部分
       return (<BasicLayout><h1>Analysis Page</h1></BasicLayout>)
}

【效果】