react怎麼請求部分刷新-前端問答-PHP中文網

react怎麼請求部分刷新

藏色散人

發布： 2022-12-30 13:46:26

原創

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react請求部分刷新的實現方法：1、引入佈局和子組件；2、分配路由，代碼如“const BasicRoute = () => (...)”；3、定義項目的link ；4、用「BasicLayout」標籤包裹，將內容傳到「layout.js」的「this.props.children」部分即可。

react怎麼請求部分刷新

本教學操作環境：Windows10系統、react18.0.0版、Dell G3電腦。

react怎麼請求部分刷新？

React實作局部刷新

【專案結構】

流程：入口檔案-> 路由-> layout -> Analysi/Monitor/Workspace

1.入口檔案-> src/index.js

2.元件-> src/coms

3.佈局-> src/layout

4.路由-> src/routes

【流程解析】

流程：入口檔案->路由-> layout -> Analysi/Monitor/Workspace

1.路由部分

//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.佈局部分（重點）

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.子元件（Analysis.js）（出錯點）

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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#【效果】