如何在 reactjs 中使用引导程序 [英] How to use bootstrap with reactjs

问题描述

我是 React.js 的新手，自从我开始阅读文档和教程以来，我不确定 Bootstrap 如何与 React.js 一起工作.

我看到了几个 npm 包，例如 reactstrap 或 react-bootstrap，但是，我不明白.HTML 代码来自一个返回一段 HTML 的方法(像这样):

class App 扩展 React.Component {构造函数(道具){超级(道具)；this.state = {值:''};this.handleChange = this.handleChange.bind(this);this.handleSubmit = this.handleSubmit.bind(this);}句柄变化(事件){this.setState({value: event.target.value});}处理提交(事件){alert('提交了一个名字:' + this.state.value);event.preventDefault();}使成为() {返回 (<form onSubmit={this.handleSubmit}><标签>名称:<input type="text" value={this.state.value} onChange={this.handleChange}/><input type="submit" value="Submit"/></表单>);}}

如果我是对的...

所以，我的问题是:

• 我应该将 Bootstrap 的 或 <script crossorigin src="https://unpkg.com/react-dom@16/umd/react-dom.development.js"></script><link rel="stylesheet" href="https://maxcdn.bootstrapcdn.com/bootstrap/4.0.0-beta.2/css/bootstrap.min.css"><div id='root'></div>

<小时>

-假设您根据 官方安装

安装了 React

使用以下文件结构

index.html

<头><meta name="viewport" content="width=device-width, initial-scale=1"><link rel="stylesheet" href="/style/style.css"><link rel="stylesheet" href="https://maxcdn.bootstrapcdn.com/bootstrap/4.0.0-beta.2/css/bootstrap.min.css"><script src="https://code.jquery.com/jquery-3.2.1.slim.min.js"></script><script src="https://cdnjs.cloudflare.com/ajax/libs/popper.js/1.12.3/umd/popper.min.js"></script><script src="https://maxcdn.bootstrapcdn.com/bootstrap/4.0.0-beta.2/js/bootstrap.min.js"></script><!-- 然后是你捆绑的 js --><身体><div class="容器"></div><script src="/bundle.js"></script></html>

index.js

从'react'导入React；从 'react-dom' 导入 ReactDOM；从'./components/app'导入应用程序；//确保它是你的 App.js 的路径ReactDOM.render(<应用程序/>, document.querySelector('.container'));

src/components/app.js

import React, { Component } from 'react';导出默认类 App 扩展组件 {使成为() {返回 (<div><form onSubmit = {this.handleSubmit} ><标签>名称:<input type = "text" className="form-control"值 = {this.state.value}onChange = {this.handleChange}/><输入类型=提交"value = "Submit" className="btn btn-primary"/></表单>

);}}

检查这个，它应该可以工作.

I'm a newbie in React.js and since I began to read documents and tutorials, I am not sure how does Bootstrap work with React.js.

I saw a couple of npm packages such as reactstrap or react-bootstrap, however, I don't get it. The HTML code comes from a method that returns a piece of HTML (like this):

class App extends React.Component {
  constructor(props) {
    super(props);
    this.state = {value: ''};

    this.handleChange = this.handleChange.bind(this);
    this.handleSubmit = this.handleSubmit.bind(this);
  }

  handleChange(event) {
    this.setState({value: event.target.value});
  }

  handleSubmit(event) {
    alert('A name was submitted: ' + this.state.value);
    event.preventDefault();
  }

  render() {
    return (
      <form onSubmit={this.handleSubmit}>
        <label>
          Name:
          <input type="text" value={this.state.value} onChange={this.handleChange} />
        </label>
        <input type="submit" value="Submit" />
      </form>
    );
  }
}

If I'm right...

So, my question is either:

• Should I add the <link/> or <script/> of Bootstrap into index.html, either into body or into header?

or

• Do I have to include Bootstrap from my App.js file and use it from a method?

PS: I am developing for years now but I never did any Javascript/HTML/CSS web, so if you have any advice, thanks in advance!

I need to use the logic of Bootstrap grid in order to realize an HCI

Thanks for any help

解决方案

To answer your question, both of your suggestions on your questions are correct. You can do it either way.

1. Include bootstrap CDN in your index.html
2. You can add bootstrap packages such as React-Bootstrap using npm/yarn and import required components into you App.js

If you do it first way all you need to do is add your Bootstrap CDN in index.html and when you access your class in Javascript, it will be working fine

NOTE: While accessing class in react use className and not class

Here is an example of how you add CDN in your index.html

class App extends React.Component {
  constructor(props) {
    super(props);
    this.state = {
      value: ''
    };

    this.handleChange = this.handleChange.bind(this);
    this.handleSubmit = this.handleSubmit.bind(this);
  }

  handleChange(event) {
    this.setState({
      value: event.target.value
    });
  }

  handleSubmit(event) {
    alert('A name was submitted: ' + this.state.value);
    event.preventDefault();
  }

  render() {
    return ( 
    <div>
      <form onSubmit = {this.handleSubmit} >
        <label>
          Name:
        </label> 
        <input type = "text" className="form-control"
          value = {this.state.value}
          onChange = {this.handleChange}/> 
        <input type = "submit"
          value = "Submit" className="btn btn-primary"/>
     </form> 
   </div>
    );
  }
}

ReactDOM.render( < App / > , document.getElementById('root'));

<script crossorigin src="https://unpkg.com/react@16/umd/react.development.js"></script>
<script crossorigin src="https://unpkg.com/react-dom@16/umd/react-dom.development.js"></script>
<link rel="stylesheet" href="https://maxcdn.bootstrapcdn.com/bootstrap/4.0.0-beta.2/css/bootstrap.min.css">
<div id='root'></div>

---

EDIT:- Assuming you installed React according to Official Installation

Use the following file structure

index.html

<!DOCTYPE html>
<html>
  <head>
    <meta name="viewport" content="width=device-width, initial-scale=1">
    <link rel="stylesheet" href="/style/style.css">
    <link rel="stylesheet" href="https://maxcdn.bootstrapcdn.com/bootstrap/4.0.0-beta.2/css/bootstrap.min.css">
    <script src="https://code.jquery.com/jquery-3.2.1.slim.min.js"></script>
    <script src="https://cdnjs.cloudflare.com/ajax/libs/popper.js/1.12.3/umd/popper.min.js"></script>
    <script src="https://maxcdn.bootstrapcdn.com/bootstrap/4.0.0-beta.2/js/bootstrap.min.js"></script>        
    <!-- And then your bundled js -->
  </head>
  <body>
    <div class="container"></div>
  </body>
  <script src="/bundle.js"></script>
</html>

index.js

import React from 'react';
import ReactDOM from 'react-dom';

import App from './components/app'; //Make sure it's the path to your App.js

ReactDOM.render(
    <App />
  , document.querySelector('.container'));

src/components/app.js

import React, { Component } from 'react';

export default class App extends Component {
  render() {
    return (
      <div>
        <form onSubmit = {this.handleSubmit} >
          <label>
            Name:
          </label> 
          <input type = "text" className="form-control"
            value = {this.state.value}
            onChange = {this.handleChange}/> 
          <input type = "submit"
          value = "Submit" className="btn btn-primary"/>
        </form> 
      </div>
    );
  }
}

Check this, it should work.

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