资源：create-react-app、react、react-dom、redux、react-redux、redux-thunk、react-router-dom、antd-mobile/antd、lib（scss库）、axios/fetch
一、创建项目（首先确保你的电脑中装有create-react-app这个脚手架，如果没有，可以通过npm命令安装，或者使用后续大勋提供的项目源码）
create-react-app my-react-app
项目创建完毕，我们需要抽离配置文件，以便于可以后期合作开发
二、抽离配置文件
cd my-react-app
cnpm run eject
一定要选择输入y
三、项目配置
1、删除src文件夹下除了registerServiceWorker.js和index.js之外的所有的文件
2、增加components、lib（scss库）、store、router、tool、api这些文件夹
3、创建App.jsx,修改config/webpack.config.dev.js和webpack.config.prod.js，添加@符号，让它指向src目录
App.jsx
import React, {Component} from 'react'
export default class App extends Component {
render () {
return (
<div>app</div>
)
}
}
webpack.config.dev.js的第87行
webpack.config.prod.js的第93行
4、在src/index.js中引入App.jsx组件，测试组件可用性，运行cnpm run start测试
import React from 'react';
import ReactDOM from 'react-dom';
import App from '@/components/App';
import registerServiceWorker from './registerServiceWorker';
ReactDOM.render(<App />, document.getElementById('root'));
registerServiceWorker();
5、引入错误边界异常处理，components/ErrorBoundary.jsx
import React, {Component} from 'react'
class ErrorBoundary extends Component {
constructor(props) {
super(props);
this.state = { hasError: false };
}
componentDidCatch(error, info) {
this.setState({ hasError: true });
}
render() {
if (this.state.hasError) {
return <h1>Something went wrong.</h1>;
}
return this.props.children;
}
}
export default ErrorBoundary
6、修改src/index.js
import React from 'react';
import ReactDOM from 'react-dom';
import App from '@/components/App';
import ErrorBoundary from '@/components/ErrorBoundary';
import registerServiceWorker from './registerServiceWorker';
ReactDOM.render(
<ErrorBoundary>
<App />
</ErrorBoundary>
, document.getElementById('root'));
registerServiceWorker();
7、引入scss模块
cnpm i node-sass sass-loader -D
修改config/webpack.config.dev.js和webpack.config.prod.js,添加scss的配置
webpack.config.dev.js，在191-198行写入如下代码
webpack.config.prod.js，在515-222行写入如下代码
四、创建必须组件
因为项目中的组件我们需要将其分为容器组件和UI组件，所以此处我们先行引入react-redux模块，又因为react-redux需要redux配合使用，需要安装，如果你的项目中的组件需要有异步操作，那么需要使用到redux-thunk模块
cnpm i react-redux redux redux-thunk -S
以首页为例,index.jsx为容器组件、ui.jsx为UI组件、store.js为该首页组件的reducer---用来提供状态
ui.jsx
import React, {Component} from 'react';
export default class UI extends Component {
render () {
return (
<div className = "container">
<div className = "box">页面内容</div>
<footer>页面底部</footer>
</div>
)
}
}
store.js,如果首页中有banner数据和prolist数据的话-----此处一定要记住写法
const reducer = (state = {banner: [1,2,3], prolist: []}, {type, data}) => {
const {banner, prolist} = state;
switch (type) {
case 'CHANGE_BANNER':
return {banner: data, prolist};
case 'CHANGE_PROLIST':
return {prolist: data, banner};;
default:
return state;
}
}
export default reducer;
在src文件夹下store下的index.js
import {createStore, combineReducers} from 'redux';
import home from '@/components/home/store';
const reducer = combineReducers({home});
const store = createStore(reducer);
export default store;
在入口文件处处理index.js
import React from 'react';
import ReactDOM from 'react-dom';
import {Provider} from 'react-redux';
import store from '@/store/index';
import App from '@/components/App';
import ErrorBoundary from '@/components/ErrorBoundary';
import registerServiceWorker from './registerServiceWorker';
ReactDOM.render(
<Provider store = {store}>
<ErrorBoundary>
<App />
</ErrorBoundary>
</Provider>
, document.getElementById('root'));
registerServiceWorker();
index.jsx---容器组件
import UI from './ui';
import {connect} from 'react-redux';
const mapStateToProps = (state) => {
return {
banner: state.home.banner,
prolist: state.home.prolist
}
}
const mapDispatchToProps = (dispatch) => {
return {
}
}
const Com = connect(
mapStateToProps,
mapDispatchToProps
)(UI);
export default Com;
如果首页UI组件内部需要在组件装载完毕之后请求数据，又不希望在容器组件内部请求数据，需要用到异步请求模块redux-thunk
UI.jsx
import React, {Component} from 'react';
export default class UI extends Component {
compoentDidMount () {
this.props.getBannerList();
this.props.getProList();
}
render () {
return (
<div className = "container">
<div className = "box">页面内容</div>
<footer>页面底部</footer>
</div>
)
}
}
新建action.js
const getData = (url) => {
return new Promise((resolve, reject) => {
fetch(url).then(res => res.json()).then(data => resolve(data)).catch(err => reject(err))
})
}
export default {
getbannerlist (dispatch) {
getData('http://www.daxunxun.com/douban').then(data => {
dispatch({
type: 'CHANGE_BANNER',
data
})
})
},
getprolist (dispatch) {
getData('http://www.daxunxun.com/douban').then(data => {
dispatch({
type: 'CHANGE_PROLIST',
data
})
})
}
}
index.jsx --- 容器组件
import UI from './ui';
import {connect} from 'react-redux';
import action from './action';
import store from '@/store/index';
const mapStateToProps = (state) => {
// console.log(state)
return {
banner: state.home.banner,
prolist: state.home.prolist
}
}
const mapDispatchToProps = (dispatch) => {
return {
getBannerList: () => {
// console.log('1')
store.dispatch(action.getbannerlist)
},
getProList: () => {
store.dispatch(action.getprolist)
}
}
}
const Com = connect(
mapStateToProps,
mapDispatchToProps
)(UI);
export default Com;
最终，home组件结构如下
如法炮制，设置其他的一些组件，比如分类kind、购物车cart、用户中心user
五、设置路由模块
1、安装路由模块
cnpm i react-router-dom -S
2、创建路由模块router/index.js
import Home from '@/components/home/index';
import Kind from '@/components/kind/index';
import Cart from '@/components/cart/index';
import User from '@/components/user/index';
const routes = [
{
path: '/home',
component: Home
},
{
path: '/kind',
component: Kind
},
{
path: '/cart',
component: Cart
},
{
path: '/user',
component: User
}
]
export default routes;
3、程序入口地址修改index.js
import React from 'react';
import ReactDOM from 'react-dom';
import {Provider} from 'react-redux';
import store from '@/store/index';
import App from '@/components/App';
import ErrorBoundary from '@/components/ErrorBoundary';
import registerServiceWorker from './registerServiceWorker';
import {HashRouter as Router, Switch, Route} from 'react-router-dom';
function render(){
ReactDOM.render(
<Provider store = {store}>
<ErrorBoundary>
<Router>
<Switch>
<Route path = '/' component = {App} />
</Switch>
</Router>
</ErrorBoundary>
</Provider>
, document.getElementById('root'));
}
render();
store.subscribe(render);
registerServiceWorker();
4、修改App.jsx
import React, {Component} from 'react';
import routes from '@/router/index';
import {Switch, Route, Redirect} from 'react-router-dom';
export default class App extends Component {
render () {
return (
<div>
<Switch >
{
routes.map((item, index) => {
return (
<Route key={index} path={item.path} component = {item.component} />
)
})
}
<Redirect to={{pathname:'/home'}} />
</Switch>
</div>
)
}
}
5、地址栏输入相关路由测试可行性
6、路由跳转
6.1 声明式跳转
<Link> ----- 不含有样式----列表进入详情
<NavLink> ----- 选中的路由会自带有一个active的样式 ---- 底部切换
import {NavLink, Link} from 'react-router-dom';
<NavLink to='/home'>首页</NavLink><Link to='/detail/123'>详情</Link>
6.2 编程式跳转 ---- 一定要注意写的地方
this.props.history.push('/home')
7、假设你的项目中有一些页面结构不一致的情况下，比如说详情页面有自己的底部，那么可以在入口文件处和App组件同样配置，index.js
import React from 'react';
import ReactDOM from 'react-dom';
import {Provider} from 'react-redux';
import store from '@/store/index';
import App from '@/components/App';
import Detail from '@/components/detail/index';
import ErrorBoundary from '@/components/ErrorBoundary';
import registerServiceWorker from './registerServiceWorker';
import {HashRouter as Router, Switch, Route} from 'react-router-dom';
function render(){
ReactDOM.render(
<Provider store = {store}>
<ErrorBoundary>
<Router>
<Switch>
<Route path = '/detail' component = {Detail} />
<Route path = '/' component = {App} />
</Switch>
</Router>
</ErrorBoundary>
</Provider>
, document.getElementById('root'));
}
render();
store.subscribe(render);
registerServiceWorker();
六、UI库的配置
pc: cnpm i antd -S
mobile: cnpm i antd-mobile -S
虽然UI组件库可以全部引入，但是我们还是强烈建议使用按需引入模式
cnpm i babel-plugin-import -D
cnpm i babel-preset-env babel-preset-react -D
创建一个.babelrc文件，写入如下内容
{
"presets": [
["env", {
"modules": false,
"targets": {
"browsers": ["> 1%", "last 2 versions", "not ie <= 8"]
}
}],
"react"
],
"plugins": [
["import", { "libraryName": "antd-mobile", "style": "css" }]
]
}
然后！！！最重要的一步，把package.json中的babel配置给删掉，尤其是：react-app！！！
假设我们要使用时间选择器，需要用到模块 DatePicker
import { DatePicker, List } from 'antd-mobile';
<DatePicker
value={this.state.date}
onChange={date => this.setState({ date })}
>
<List.Item arrow="horizontal">Datetime</List.Item>
</DatePicker>
其余的UI组件类似
七、css的模块化
修改配置文件
webpack.config.dev.js
webpack.config.prod.js
组件内部创建style.css
UI组件内部使用
import React, {Component} from 'react';
import style from './style.css';
export default class UI extends Component {
componentDidMount () {
this.props.getBannerList();
this.props.getProList();
}
render () {
console.log('props', this.props)
return (
<div className = "container">
<div className = {style.box}>
<ul>
{
this.props.prolist.map((item,index) => {
return (
<li key = {item.id}>{item.title}</li>
)
})
}
</ul>
</div>
<footer>页面底部</footer>
</div>
)
}
}
©著作权归作者所有：来自51CTO博客作者吴大勋的原创作品，如需转载，请注明出处，否则将追究法律责任
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