• 在 HTML 页面中使用 React


    该方案使用场景:在html页面中使用react,主js文件index.js和其它非react功能使用js模块化的方式开发,适合轻量级中小型应用

    index.html代码:

    引入react、react-dom、babel、moment、antd等

    <!DOCTYPE html>
    <html lang='zh-CN'>
    
    <head>
        <title>React in HTML</title>
    
        <meta charset="utf-8" />
        <meta http-equiv="X-UA-Compatible" content="IE=edge">
        <meta name="viewport" content="width=device-width, initial-scale=1">
    
        <link rel="stylesheet" href="libs/antd/antd.min.css">
        <link rel="stylesheet" href="css/index.css">
    
        <style type="text/css">
    
        </style>
    
        <script type="text/javascript" src="libs/jquery-1.9.1.js"></script>
    
        <script type="text/javascript" src="libs/react/react.production.min.js"></script>
        <script type="text/javascript" src="libs/react/react-dom.production.min.js"></script>
        <script type="text/javascript" src="libs/babel/babel.min.js"></script>
        <script type="text/javascript" src="libs/moment/moment-with-locales.min.js"></script>
        <script type="text/javascript" src="libs/antd/antd-with-locales.min.js"></script>
    
    </head>
    
    <body>
        <input id='btn' type="button" class="index-btn" value="显示React组件" />
    
        <script type="text/babel" src="components/HelloReact.jsx"></script>
    
        <script type="module" src="index.js"></script>
    </body>
    
    </html>
    View Code

    index.js代码:

    import { ReactComponentContainer } from './ReactComponentContainer.js'
    
    let isShow = true;
    let helloReactContainer;
    
    $('#btn').on('click', function () {
        if (isShow) {
            helloReactContainer = new ReactComponentContainer('helloReact', HelloReact, { name: 'React' });
            helloReactContainer.show();
            isShow = false;
            $(this).val('隐藏React组件');
        } else {
            helloReactContainer.hide();
            isShow = true;
            $(this).val('显示React组件');
        }
    });
    View Code

    ReactComponentContainer.js代码:

    该模块用于在html中显示隐藏react组件

    class ReactComponentContainer {
    
        component
        componentProps
        componentContainerId
    
        constructor(componentContainerId, component, componentProps) {
            if ($('#' + componentContainerId).length == 0) {
                $('body').append('<div id="' + componentContainerId + '"></div>');
            }
    
            this.componentContainerId = componentContainerId;
            this.component = component;
            this.componentProps = componentProps;
        }
    
        render(isShow) {
            ReactDOM.render(
                React.createElement(
                    antd.ConfigProvider,
                    {
                        locale: antd.locales.zh_CN
                    },
                    React.createElement(this.component, Object.assign({ isShow: isShow }, this.componentProps))
                ),
                document.getElementById(this.componentContainerId)
            );
        }
    
        show() {
            this.render(true);
        }
    
        hide() {
            this.render(false);
        }
    
    }
    
    export { ReactComponentContainer }
    View Code

    HelloReact.jsx代码:

    class HelloReact extends React.Component {
        dateFormat = 'YYYY-MM-DD'
        timeFormat = 'HH:mm:ss'
    
        constructor(props) {
            super(props);
    
            let now = new Date().valueOf();
    
            this.state = {
                dateStr: moment(now).format(this.dateFormat),
                timeStr: moment(now).format(this.timeFormat)
            }
    
            this.onChangeDate = this.onChangeDate.bind(this);
            this.onChangeTime = this.onChangeTime.bind(this);
            this.updateDatePickerAndTimePicker = this.updateDatePickerAndTimePicker.bind(this);
        }
    
        onChangeDate(date, dateString) {
            this.setState({ dateStr: dateString });
        }
    
        onChangeTime(time, timeString) {
            this.setState({ timeStr: timeString });
        }
    
        updateDatePickerAndTimePicker() {
            let now = new Date().valueOf();
            this.setState({
                dateStr: moment(now).format(this.dateFormat),
                timeStr: moment(now).format(this.timeFormat)
            });
        }
    
        render() {
            return <div style={{ display: this.props.isShow ? '' : 'none' }}>
                <h1>Hello {this.props.name}, Now is {this.state.dateStr} {this.state.timeStr}</h1>
                <antd.DatePicker onChange={this.onChangeDate} value={moment(this.state.dateStr, this.dateFormat)} />
                &nbsp;
                <antd.TimePicker onChange={this.onChangeTime} value={moment(this.state.timeStr, this.timeFormat)} />
                <br />
                <antd.Button type="primary" size="default" style={{ marginTop: '10px' }} onClick={this.updateDatePickerAndTimePicker} >更新日期时间控件值</antd.Button>
            </div>;
        }
    }
    View Code

    效果图:

    浏览器按F12弹出DevTools,在Sources选项卡中可以看到组件代码,方便打断点调试

    遇到的问题:

    无法使用es6的import语法导入react组件,es6的import和require.js都不认识jsx

    react组件不是按需加载,只适合小型应用

    Gitee代码地址:

    https://gitee.com/s0611163/react-in-html

     

  • 相关阅读:
    牛客小白月赛12 D 月月给华华出题 (欧拉函数,数论,线筛)
    牛客小白月赛12 F 华华开始学信息学 (分块+树状数组)
    牛客小白月赛12 C 华华给月月出题 (积性函数,线性筛)
    牛客小白月赛12 I 华华和月月逛公园 (tarjian 求桥)
    Tourist's Notes CodeForces
    Educational Codeforces Round 71 (Rated for Div. 2) E XOR Guessing (二进制分组,交互)
    Tunnel Warfare HDU
    蓝桥杯第三届总决赛
    HDU 1695(数论,筛选+素因子分解+容斥)
    lightoj 1248 Dice (III)(几何分布+期望)
  • 原文地址:https://www.cnblogs.com/s0611163/p/15650075.html
Copyright © 2020-2023  润新知