从零搭建React全家桶框架教程：快速搭建react+react-router+redux项目

搭建基本的react项目

我们使用create-react-app(npm要全局安装create-react-app)快速创建一个react项目：

npx create-react-app my-app
cd my-app
npm start

启动成功后，就可以看到react的页面啦。接下来我们稍稍调整下项目的目录结构和页面内容，新增About页面。

在src目录下新建pages目录，用来放置前端页面。新建App目录，将原来App.js和App.css移动进去，注意这两个文件引入路径的修改。

项目目录结构图
在src目录下新增Home页面和About页面（后面用到）

// 路径：/src/pages/Home/Home.js
import React from 'react'

const Home = () => (

Home Page

这是Home页面

)
export default Home

// 路径：/src/pages/About/About.js
import React from 'react'

const About = () => (

About Page

这是About页面

)
export default About

接入react-router

接下来，我们开始在项目中接入react-router，通过npm指令安装"react-router"和"react-router-dom"：

npm i -S react-router react-router-dom

我们修改一下/src/pages/App/App.js和/src/index.js的内容：

// /src/pages/App/App.js
import React from 'react'
import { Route, Link } from 'react-router-dom'
import Home from '../Home/Home'
import About from '../About/About'

const App = () => (
<Link to="/">Home</Link> <Link to="/about">About</Link>
```
 <main>
   <Route exact path="/" component={Home} />
   <Route exact path="/about" component={About} />
 </main>
```
) export default App
// /src/index.js
// ...省略代码
import { Router } from "react-router";
import { createBrowserHistory } from "history";
const history = createBrowserHistory();
// ...省略代码
<Router history={history}>
<App />
</Router>
// ...省略代码
这样我们就配置好了react-router，执行npm start命令，在浏览器中查看页面，点击Home展示Home页面，点击About展示About页面
react路由配置成功后预览页面

接入redux

接下来，我们在项目中接入redux，首先通过npm安装以下依赖：

npm i react-redux redux redux-thunk connected-react-router

在src目录下新建modules目录，这个目录用来存放reducer相关的文件，新建counter.js和index.js

// /src/modules/counter.js
export const INCREMENT_REQUESTED = 'counter/INCREMENT_REQUESTED'
export const INCREMENT = 'counter/INCREMENT'
export const DECREMENT_REQUESTED = 'counter/DECREMENT_REQUESTED'
export const DECREMENT = 'counter/DECREMENT'

const initialState = {
count: 0,
isIncrementing: false,
isDecrementing: false
}

export default (state = initialState, action) => {
switch (action.type) {
case INCREMENT_REQUESTED:
return {
...state,
isIncrementing: true
}
```
         case INCREMENT:
             return {
                 ...state,
                 count: state.count + 1,
                     isIncrementing: !state.isIncrementing
             }

             case DECREMENT_REQUESTED:
                 return {
                     ...state,
                     isDecrementing: true
                 }

                 case DECREMENT:
                     return {
                         ...state,
                         count: state.count - 1,
                             isDecrementing: !state.isDecrementing
                     }

                     default:
                         return state
 }
```
}

export const increment = () => {
return dispatch => {
dispatch({
type: INCREMENT_REQUESTED
})
```
     dispatch({
         type: INCREMENT
     })
 }
```
}

export const incrementAsync = () => {
return dispatch => {
dispatch({
type: INCREMENT_REQUESTED
})
```
     return setTimeout(() => {
         dispatch({
             type: INCREMENT
         })
     }, 3000)
 }
```
}

export const decrement = () => {
return dispatch => {
dispatch({
type: DECREMENT_REQUESTED
})
```
     dispatch({
         type: DECREMENT
     })
 }
```
}

export const decrementAsync = () => {
return dispatch => {
dispatch({
type: DECREMENT_REQUESTED
})
```
     return setTimeout(() => {
         dispatch({
             type: DECREMENT
         })
     }, 3000)
 }
```
}

// /src/modules/index.js
import { combineReducers } from 'redux'
import counter from './counter'
import { connectRouter } from 'connected-react-router'

const createRootReducer = (history)=> combineReducers({
counter,
router: connectRouter(history)})

export default createRootReducer
在src目录下新建store.js

// /src/store.js
import { createStore, applyMiddleware, compose } from 'redux'
import { routerMiddleware } from 'connected-react-router'
import thunk from 'redux-thunk'
import * as History from 'history'
import createRootReducer from './modules'

export const history = History.createBrowserHistory()

const initialState = {}
const enhancers = []
const middleware = [thunk, routerMiddleware(history)]

if (process.env.NODE_ENV === 'development') {
const devToolsExtension = window.REDUX_DEVTOOLS_EXTENSION
if (typeof devToolsExtension === 'function') {
enhancers.push(devToolsExtension())
}
}

const composedEnhancers = compose(
applyMiddleware(...middleware),
...enhancers
)

export default createStore(
createRootReducer(history),
initialState,
composedEnhancers
)
修改下/src/index.js的内容：

// /src/index.js
// ...省略代码
import { Provider } from 'react-redux'
import { ConnectedRouter } from 'connected-react-router'
import store, { history } from './store'
// ...省略代码
<Provider store={store}>
<ConnectedRouter history={history}>
<App />
</ConnectedRouter>
</Provider>
// ...省略代码
在Home页和About页中接入redux

// 修改 /src/pages/Home/Home.js
import React from 'react'
import { push } from 'connected-react-router'
import { bindActionCreators } from 'redux'
import { connect } from 'react-redux'
import {
increment,
incrementAsync,
decrement,
decrementAsync
} from '../../modules/counter'

const Home = props => (
Home

Count: {props.count}
```
 <p>
   <button onClick={props.increment}>Increment</button>
   <button onClick={props.incrementAsync} disabled={props.isIncrementing}>
     Increment Async
   </button>
 </p>

 <p>
   <button onClick={props.decrement}>Decrement</button>
   <button onClick={props.decrementAsync} disabled={props.isDecrementing}>
     Decrement Async
   </button>
 </p>

 <p>
   <button onClick={() => props.changePage()}>
     Go to about page via redux
   </button>
 </p>
```
)
const mapStateToProps = ({ counter }) => ({
count: counter.count,
isIncrementing: counter.isIncrementing,
isDecrementing: counter.isDecrementing
})

const mapDispatchToProps = dispatch =>
bindActionCreators(
{
increment,
incrementAsync,
decrement,
decrementAsync,
changePage: () => push('/about')
},
dispatch
)

export default connect(
mapStateToProps,
mapDispatchToProps
)(Home)

// 修改 /src/pages/About/About.js
import React from 'react'
import { connect } from 'react-redux'

const About = (props) => (

About Page

这是About页面

count计数：{props.count}

)
const mapStateToProps = ({ counter }) => ({
count: counter.count
})

export default connect(
mapStateToProps
)(About)
到此，一个react+react-router+redux的基本项目就已经配置完成了，接下来就可以做更深层次的业务开发了。

结尾

本文中没有对react-router和redux做什么原理性和概念性的介绍，纯粹作为傻瓜式的教程，由react基本项目，到接入react-router，最后接入redux完成一个基本的react全家桶项目搭建，目的是让初学者能够体验一下完整的react全家桶基本项目。在本教程中如果有什么问题，可以留言哦。

如果想要深入理解react、react-router和redux的知识，建议去官网阅读文档深入学习。

最后，在业余时间编写了一个快速构建react全家桶项目模板、vue2.x全家桶项目模板和、vue3项目模板的npm脚手架fast-project，希望大家能够下载体验，给出一些建议吶~

番外

之前的教程是搭建一个常见jsx版react项目，最近在新项目中使用了ts语言，组件编写全面拥抱了hooks，redux使用reduxjs/toolkit，而不是thunk。新的项目模板地址https://gitee.com/duchengdong/react-ts-template.git，同时也已经添加到了fast-project快速搭建项目脚手架里。
最后编辑于：2022-01-02 11:40
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从零搭建React全家桶框架教程：快速搭建react+react-router+redux项目

搭建基本的react项目

Home Page

About Page

接入react-router

接入redux

Home

About Page

结尾

番外