How to request partial refresh in react-Front-end Q&A-php.cn

How to request partial refresh in react

藏色散人

Release： 2022-12-30 13:46:26

Original

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React request partial refresh implementation method: 1. Introduce layout and sub-components; 2. Assign routing, code such as "const BasicRoute = () => (...)"; 3. Define the link of the project ; 4. Wrap it with the "BasicLayout" tag and pass the content to the "this.props.children" part of "layout.js".

How to request partial refresh in react

The operating environment of this tutorial: Windows 10 system, react18.0.0 version, Dell G3 computer.

How to request partial refresh in react?

React implements partial refresh

[Project structure]

Process: Entry file-> Routing-> layout -> Analysi/Monitor/Workspace

1. Entry file-> src/index.js

2. Component-> src/coms

3. Layout-> src/layout

4. Routing-> src/routes

##[Process Analysis]

Process: Entry file-> Routing-> layout -> Analysi/Monitor/Workspace

1. Routing part

//import React from &#39;react&#39;; 引入类
//import { Component } from &#39;react&#39;;  引入对象
import React, { Component } from &#39;react&#39;;
import {HashRouter, Route, Switch} from &#39;react-router-dom&#39;;

//引入布局和子组件
import BasicLayout from &#39;../layout/layout&#39;;
import Analysis from &#39;../coms/Analysis&#39;;
import Monitor from &#39;../coms/Monitor&#39;;
import Workplace from &#39;../coms/Workplace&#39;;

//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;

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2. Layout part (

Key)

import React, { Component } from &#39;react&#39;;
import  {Layout ,Menu,Icon} from &#39;antd&#39;;
import { Router, Route, Link,HashRouter } from &#39;react-router-dom&#39;
import &#39;antd/dist/antd.min.css&#39;
import BasicRoute from &#39;../routes/router&#39;;

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

export default class BasicLayout extends Component {
  render() {
    return (
        <Layout>
        <Sider width={256} style={{ minHeight: &#39;100vh&#39;, color: &#39;white&#39; }}>
            
            <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: &#39;#fff&#39;, textAlign: &#39;center&#39;, padding: 0 }}>Header</Header>
          <Content style={{ margin: &#39;24px 16px 0&#39; }}>
            <div style={{ padding: 24, background: &#39;#fff&#39;, 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: &#39;center&#39; }}>Ant Design ©2018 Created by Ant UED</Footer>
        </Layout>
      </Layout>
    )
  }
}

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3. Subcomponent (Analysis.js) (

Error point)

import React from &#39;react&#39;;
import BasicLayout from &#39;../layout/layout&#39;;
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>)
}

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[Effect]

[Summary]

Following the tutorial on the antd official website, I found that it cannot be partially refreshed

The reason is that the official website uses the umi framework. I configured it myself, but there were many omissions, resulting in subcomponents not being passed to the layout correctly.

Recommended learning: "

react video tutorial"

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