我正在通过创建一个应用程序来学习React，但是我认为我低估了它的复杂性。让我与您分享，了解我是否正确：
这个想法是创建一个React App来跟踪我想学习的学科。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-文档由其父母的_id修饰：
{
"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，其下有很多主题，例如：JavaScript具有NodeJS，数据结构和算法作为主题，Express是Node的子主题，等等...
我有一个提供JSON的NodeJS API，以获取已存储在数据库中的文档的完整列表以及数据库的每个特定部分，MainTopics，来自给定MainTopic的Topics等，等等...这里是JSON它返回：
[
{
"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
}
]
我想开始React部分，但是我真的不确定如何构造它，我的意思是我应该创建1个组件来处理请求的全部数据，还是应该为每个运动部分创建一个组件？就像... MainMainics的一个组件，Topics的一个组件，SubTopics的一个组件，每个Resource的一个组件。
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;
另一个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;
最后是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;
请帮助我了解如何为应用程序结构提供最佳解决方案。
谢谢。
最诚挚的问候。
答案 0 :(得分：1)
我认为最好的和最简单的方法是使用独立组件来安排文件结构以进行响应。通过这种方法，您可以以最小的单元（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全部组件。这种方法的主要优点是可以提高代码的可重用性。
如果您要拔出一个组件并将其插入完全不同的应用程序中，则其运行方式将与以前的应用程序中的运行方式完全相同。下面是您如何构建应用的结构；
import java.util.Scanner;
public class HelloWorld
{
public static void main(String[] args)
{
int [] Numbers = new int[100];
Scanner input = new Scanner (System.in);
for (int x=0;x<100;x++){
System.out.println("Enter Number");
Numbers[x]= input.nextInt();
}
int min = Numbers[0];
for (int x=1;x<100;x++){
if (Numbers[x] < min){
min = Numbers[x];
}
}
System.out.println("The Min number is :"+min);
}
}
答案 1 :(得分：1)
这一切都取决于应用程序的大小以及您可能想要（现在）添加到应用程序中或将来考虑使用（添加）的其他技术（例如Redux）。 React对于如何将文件放入文件夹没有意见。
话虽如此，您可以考虑以下示例：
按功能或/和路线分组
[将CSS，JS和其他文件放到按功能或路线分组的文件夹中。 ]
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
[将相似文件分组]
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
这些是一些简单应用程序的基本示例。但是，如果您的应用开始变大，您可以考虑根据组件正在执行的任务将其划分为多个单独的文件夹，为组件创建containers并将它们放在单独的文件夹中。如果您使用的是类似scss的抱怨者，则可能会为样式创建一个单独的文件夹，并将已编译的CSS文件与scss分开。此外，如果使用Redux之类的文件夹，则将拥有actions和reducers文件夹，并可能有单独的store文件夹（您可以在其中配置react-redux store ）。该文件夹结构将如下所示：
/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
我还建议您阅读以下内容：Thinking in React。
它可能会给您一些有关如何使用 React 创建应用程序的提示。