我正在通过创建一个应用程序来学习React，但我认为我低估了它的复杂性。让我与大家分享一下，知道我是否做对了：
我们的想法是创建一个React App来跟踪我想要学习的科目。我创建了以下结构：
MainTopic:
-- title: String
-- percentage_completed: Number
-- Topic: Array
---- Subtopic: Array
---- title: String
---- percentage_completed: Number
------ Resources: Array
------ title: String
------ link: String
------ completed: Boolean
JSON结构应如下所示 - 文档由其父级的_id绑定：
{
"title": String,
"percentage_completed": Number
"topic":[
{
"title":String,
"percentage_completed":Number
"subtopic":[
{
"title":String
"percentage_completed": Number
"resources":[
{
"title":String
"link": String
"concluded": Boolean
}
]
}
]
}
]
}
每个主题都称为MainTopic，下面有很多主题，例如：JavaScript有NodeJS，数据结构和算法作为主题，Express是Node的子主题等等......
我有一个服务JSON的NodeJS API来获取已经存储在数据库中的整个文档列表以及它的每个特定部分，MainTopics，来自给定MainTopic的主题等等......这里你是它返回的JSON：
[
{
"topics": [
{
"subtopics": [
{
"resources": [
{
"_id": "5b857b00c346783a24cbdbb5",
"subtopic_id": "5b857ad0c346783a24cbdbb4",
"title": "Udemy Course",
"link": "https://udemy.com/dictionaires-nodejs",
"concluded": false,
"__v": 0
}
],
"_id": "5b857ad0c346783a24cbdbb4",
"title": "Dictionaries",
"percentage_concluded": 0,
"topic_id": "5b857a12c346783a24cbdbae",
"__v": 0
}
],
"_id": "5b857a12c346783a24cbdbae",
"maintopic_id": "5b8565b90c927b2c47df7d9d",
"title": "Node.js",
"percentage_concluded": 0,
"__v": 0
},
{
"subtopics": [
{
"resources": [],
"_id": "5b857ab8c346783a24cbdbb3",
"title": "Lists",
"percentage_concluded": 0,
"topic_id": "5b857a1ac346783a24cbdbaf",
"__v": 0
}
],
"_id": "5b857a1ac346783a24cbdbaf",
"maintopic_id": "5b8565b90c927b2c47df7d9d",
"title": "Java",
"percentage_concluded": 0,
"__v": 0
},
{
"subtopics": [
{
"resources": [
{
"_id": "5b857a91c346783a24cbdbb2",
"subtopic_id": "5b857a6ec346783a24cbdbb1",
"title": "Udemy Course",
"link": "https://udemy.com",
"concluded": false,
"__v": 0
}
],
"_id": "5b857a6ec346783a24cbdbb1",
"title": "Variables",
"percentage_concluded": 0,
"topic_id": "5b857a21c346783a24cbdbb0",
"__v": 0
}
],
"_id": "5b857a21c346783a24cbdbb0",
"maintopic_id": "5b8565b90c927b2c47df7d9d",
"title": "Python",
"percentage_concluded": 0,
"__v": 0
}
],
"_id": "5b8565b90c927b2c47df7d9d",
"title": "Programming Languages",
"percentage_concluded": 30,
"__v": 0
}
]
我想启动React部分，但我真的不确定如何构建它，我的意思是，我应该创建1个组件来处理所请求的全部数据，还是我应该为每个移动部件创建一个组件？就像...... MainTopics的一个组件，一个用于主题，一个用于SubTopics，一个用于每个Resource。
到目前为止，我有以下Reac代码：
App.js
components/
Learning.js
Resource.js
Header.js
主应用程序文件App.js
import React, { Component } from 'react';
import Header from './components/Header';
import 'bootstrap/dist/css/bootstrap.min.css';
import './App.css';
import Learning from './components/Learning';
import './index.css';
class App extends Component {
render() {
return (
<div className="App">
<Header branding="Learn Tracker"/>
<div className="container">
<Learning />
</div>
</div>
);
}
}
export default App;
其他Learning.js：
import React, { Component } from 'react'
import Resource from './Resource';
import axios from 'axios';
class Learning extends Component {
constructor(props){
super(props);
this.state = {
resource: [{}]
}
this.fetchData();
}
fetchData(){
axios.get('/api/all')
.then(result => {
this.setState({resource: result.data});
})
.catch(err => {
console.log(err);
});
}
render() {
const {resource} = this.state;
resource.map((resource) => {
return (
<Resource resource={resource} />
)
});
return(
<div>
{resource}
</div>
);
}
}
export default Learning;
Resource.js：
import React, { Component } from 'react';
import PropTypes from 'prop-types';
class Resource extends Component {
render() {
const {resource} = this.props;
return (
<div className="card mb-3">
<div className="card-header">
<h4>{ resource[0].maintopic.title }</h4>
</div>
<div className="card-body">
<h4 className="card-title">{ resource[0].maintopic.topic.title }</h4>
<ul className="list-group">
<li className="list-group-item">
{ resource[0].maintopic.topic.subtopic.title }
<div className="card-body">
<ul className="list-group list-group-flush">
<li className="list-group-item">Title: { resource[0].maintopic.topic.subtopic.resources[0].title }</li>
<li className="list-group-item">Link: { resource[0].maintopic.topic.subtopic.resources[0].link }</li>
<li className="list-group-item">Concluded: { resource[0].maintopic.topic.subtopic.resources[0].concluded }</li>
</ul>
</div>
</li>
</ul>
</div>
</div>
)
}
}
Resource.propTypes = {
resource: PropTypes.object.isRequired
}
export default Resource;
最后Header.js：
import React from 'react'
import PropTypes from 'prop-types';
import 'bootstrap/dist/css/bootstrap.min.css';
import '../App.css';
import '../index.css';
const Header = props => {
const { branding } = props;
return (
<nav className="navbar navbar-expand-sm navbar-dark bg-primary mb-3 py-3">
<div className="container">
<a href="/" className="navbar-brand">{branding}</a>
<div>
<ul className="navbar-nav mr-auto">
<li className="nav-item">
<a href="/" className="nav-link">Home</a>
</li>
<li className="nav-item text-white"><p className="nav-link"><span className="branco">|</span></p></li>
<li className="nav-item">
<a href="/" className="nav-link">About</a>
</li>
</ul>
</div>
</div>
</nav>
)
}
Header.defaultProps = {
branding: "Learning Tracker"
}
Header.PropTypes = {
branding: PropTypes.string.isRequired
}
export default Header;
请帮助我理解如何为应用程序的结构找到最佳解决方案。
先感谢您。
最好的祝福。
我认为在反应中安排文件结构的最佳和最简单的方法是使用独立组件。在这种方法下，您可以以最小的单位（组件）构建应用程序。这些组件将包含在任何地方运行所需的所有组件。这种方法的主要优点是它鼓励高水平的代码可重用性。
如果您要拔出一个组件并将其插入一个完全不同的应用程序中，它将与以前的应用程序中运行的方式完全相同。下面你可以如何构建你的应用程序;
├── src
│ ├── components // Dumb components should go here -> they should be stand-alone components
│ │ ├── App // App should should render all the main topics
│ │ │ ├── index.js // Component logic and jsx
│ │ │ ├── index.test.js // Component tests
│ │ │ ├── index.css // Component styles
│ │ ├── Header // All components should have their own index.js and index.test.js files
│ │ │ ├── index.js // Component logic and jsx
│ │ │ ├── index.test.js // Component tests
│ │ │ ├── index.css // Component styles
│ │ ├── MainTopic // MainTopic should be a component on its own because it's repeated. It's in an array.
│ │ │ ├── index.js // Component logic and jsx
│ │ │ ├── index.test.js // Component tests
│ │ │ ├── index.css // Component styles
│ │ ├── SubTopic // SubTopic should be a component on its own because it's repeated. It's in an array.
│ │ │ ├── index.js // Component logic and jsx
│ │ │ ├── index.test.js // Component tests
│ │ │ ├── index.css // Component styles
│ │ ├── Topic // Topic should be a component on its own because it's repeated. It's in an array.
│ │ │ ├── index.js // Component logic and jsx
│ │ │ ├── index.test.js // Component tests
│ │ │ ├── index.css // Component styles
│ ├── index.test.js // Tests for non-components files
│ ├── index.js
│ ├── routes.js // All routes should be registered here这一切都取决于应用程序的大小和其他技术（例如Redux），您可能希望将其添加到您的应用程序（现在），或者可能考虑将来使用（添加）。 React对如何将文件放入文件夹没有意见。
话虽如此，这里有一些你可能会考虑的例子：
按功能或/和路由分组 [将您的CSS，JS和其他文件放在按功能或路由分组的文件夹中。 ]
common/
Avatar.js
Avatar.css
APIUtils.js
APIUtils.test.js
feed/
index.js
Feed.js
Feed.css
FeedStory.js
FeedStory.test.js
FeedAPI.js
profile/
index.js
Profile.js
ProfileHeader.js
ProfileHeader.css
ProfileAPI.js
按文件类型分组 [将类似文件组合在一起]
api/
APIUtils.js
APIUtils.test.js
ProfileAPI.js
UserAPI.js
components/
Avatar.js
Avatar.css
Feed.js
Feed.css
FeedStory.js
FeedStory.test.js
Profile.js
ProfileHeader.js
ProfileHeader.css
这些是简单应用程序的一些基本示例。但是，如果您的应用程序开始变大，您会考虑根据他们正在执行的任务将组件分成单独的文件夹，为您的组件制作containers并将它们放在单独的文件夹中。如果你正在使用类似scss抱怨的东西，你可能会为这些样式创建一个单独的文件夹，并从CSS文件中分割编译的scss文件。此外，如果你使用像Redux这样的东西，你会有你的actions和reducers文件夹，可能还有一个单独的store文件夹（你可以配置你的react-redux store）。该文件夹结构将是这样的：
/src
/components // where you put and divide all your components
/posts // folder containing all files relevant to your eg post feature
/likes // likewise, a folder containing all files relevant to your likes feature
/home
Header.js // some of your other files that are used everywhere
Footer.js
App.js // your main App.js file, if you decide to put it inside of your 'components' folder
...
/containers // where you would put your containers, get all the data and pass it down to components as props
/HomeContainer.js
/PostContainer.js
/LikesContainer.js
/actions // all of for your action creators and types
/reducers // all of for your reducers, including your root reducer
/utils // all your helper methods, eg for your auth flow
/styles // your css (or/ and scss) files
/assets // your logos, images, and other static files
...etc
index.js // Your main index.js file inside of the root 'src' folder
我也建议读这个：Thinking in React。
它可能会为您提供有关如何使用React创建应用程序的轻微提示。