next.js+react+typescript+antd+antd-mobile+axios+redux+sass react服务端渲染构建项目，从构建到发布，兼容pc+移动端

简介：该教程兼容pc+移动端，如只需一端，可忽略兼容部分教程，根据需要运行的客户端构建项目

antd官网：https://ant.design/components/overview-cn/
antd-mobile官网：https://mobile.ant.design/zh
next.js: https://www.nextjs.cn/
react：https://react.zcopy.site/
redux：https://react-redux.js.org/api/hooks#custom-context

一、介绍

Next.js，这是一个 React 的同构应用开发框架。

直观的、基于页面的路由系统（并支持动态路由）
预渲染。支持在页面级的静态生成 (SSG) 和服务器端渲染 (SSR)
自动代码拆分，提升页面加载速度
具有经过优化的预取功能的客户端路由
内置 CSS 和 Sass 的支持，并支持任何 CSS-in-JS 库
开发环境支持快速刷新
利用 Serverless Functions 及 API 路由构建 API 功能完全可扩展

二、构建项目

yarn create next-app “文件名” --typescript
yarn dev

三、调整项目

_app.tsx

import type { AppProps } from "next/app";export default function App({ Component, pageProps }: AppProps) {return <Component {...pageProps} />
}

index.tsx

import {NextPage} from "next";const Home: NextPage = (props) => {  return <div>dsada</div>
};
export default Home

三、静态资源assets

创建assets>css、assets>font、assets>img
安装依赖
```
yarn add sass
```
集成字体图标，下载阿里icon库，解压后把压缩包里的文件复制到assets>font
```
<i class="iconfont icon-usename"></i>
```

css文件下分别创建globals.scss、iframe.scss、normalize.scss、variable.scss

//globals.scss 全局样式文件body{font-size: $font_size!important;
}

 //iframe.scss 公共样式导入@import "./globals";
@import "./normalize";
@import "../font/iconfont.css";

//normalize.scss 同一浏览器样式，下载后放入该文件中
http://nicolasgallagher.com/about-normalize-css/
https://github.com/necolas/normalize.css

//variable.scss 全局变量文件$primary-color: red;
/**
* 字体大小
*/
$font_size: 14px;//基础字体大小
$sm_font_size: 12px;//小号字体
$bg_font_size: 16px;//大号字体
$xl_font_size: 20px;//超大号字体/**
* icon 大小
*/
$icon_size: $font_size;//默认字体
$bg_icon_size: $bg_font_size;//大号字体
$sm_icon_size: $sm_font_size;//小号字体
$xl_icon_size: $xl_font_size;//超大号字体/**
* button 颜色、大小
*/
$btn_primary: #1677ff;
$btn_danger: #ff4d4f;/**
* h1-h5标签字体大小
*/
$h1_font_size: 38px;//h1字体大小
$h2_font_size: 30px;//h2字体大小
$h3_font_size: 24px;//h3字体大小
$h4_font_size: $xl_font_size;//h4字体大小
$h5_font_size: $bg_font_size;//h5字体大小

配置引入路径tsconfig.json

"paths": {..."@css/": ["./src/assets/css/"],"@img/": ["./src/assets/img/"],...
}

引入全局样式，修改_app.tsx

import type { AppProps } from "next/app";
import "@css/iframe.scss";export default function App({ Component, pageProps }: AppProps) {return <Component {...pageProps} />
}

引入全局sass变量，next.config.js

const path = require("path");
/** @type {import('next').NextConfig} */
const nextConfig = {...sassOptions:{includePaths: [path.join(__dirname, "./src/assets/css")],prependData: "@import 'variable.scss';"},...
}module.exports = nextConfig

配置antd-mobile主题，https://mobile.ant.design/zh/guide/theming，新建 css>antdMobileTheme.scss
```
:root:root {--adm-color-primary: #ff4d4f;
}
```
配置antd主题

新建pages>antTheme.module.scss


/* antd 主题配置
* 详细配置可参考 https://ant.design/docs/react/customize-theme-cn*/:export {
colorPrimary: $primary-color;
fontSize: $font_size;
fontSizeHeading1: $h1_font_size;
fontSizeHeading2:$h2_font_size;
fontSizeHeading3:$h3_font_size;
fontSizeHeading4:$h4_font_size;
fontSizeHeading5:$h5_font_size;
fontSizeLG:$bg_font_size;
fontSizeSM:$sm_font_size;
fontSizeXL:$xl_font_size;
fontSizeIcon:$sm_icon_size;
}

修改_app.tsx

import type { AppProps } from "next/app";
import {ConfigProvider} from "antd";
import them from "./antTheme.module.scss";
import "@css/iframe.scss";export default function App({ Component, pageProps }: AppProps) {return  <ConfigProvider theme={{token: them}}><Component {...pageProps}/></ConfigProvider>
}

集成postcss

安装依赖postcss-px-to-viewport-8-plugin

yarn add postcss-px-to-viewport-8-plugin --dev

根目录新建postcss.config.js

//postcss.config.jsmodule.exports = {plugins: {"postcss-px-to-viewport-8-plugin": {viewportWidth: 375, // 视窗的宽度，对应的是我们设计稿的宽度viewportHeight: 912, // 视窗的高度，对应的是我们设计稿的高度，可以不设置unitPrecision: 3, // 指定`px`转换为视窗单位值的小数位数（很多时候无法整除）viewportUnit: 'vw', // 指定需要转换成的视窗单位，建议使用vwpropList: ['*'],selectorBlackList: [/^.pc/],minPixelValue: 1, // 小于或等于`1px`不转换为视窗单位，你也可以设置为你想要的值mediaQuery: false, // 允许在媒体查询中转换`px`,exclude: [/pc.module/,/antTheme.module.scss/,/braft-editor/], //设置忽略文件，用正则做目录名匹配}},
};

四、集成redux

安装依赖

yarn add redux react-redux redux-saga
yarn add @types/react-redux @types/redux-saga next-redux-wrapper redux-devtools-extension --dev

创建redux>reducers、redux>sagas文件夹

配置引入路径tsconfig.json

"paths": {..."@reducers/*": ["./src/redux/store/reducers/*"],"@sagas/*": ["./src/redux/store/sagas/*"],"@store/*": ["./src/redux/store/*"],...
}

创建第一个store，redux>reducers>mobileStore.tsx

/*** @description 该store，判断是否是移动端* *//*** @description 定义相关接口或者枚举* */
export enum MobileStoreActionEnum {INIT="mobileStoreInit",CHANGE="mobileStoreChange"
}export type MobileStoreStateType = boolean;interface MobileStoreActionInterface{type: MobileStoreActionEnum,payload:MobileStoreStateType
}/*** @description store逻辑* */
const mobileInitState:MobileStoreStateType = false;
const mobileStore = (state:MobileStoreStateType =mobileInitState, action: MobileStoreActionInterface):MobileStoreStateType => {switch (action.type) {case MobileStoreActionEnum.INIT:return statecase MobileStoreActionEnum.CHANGE:return action.payloaddefault:return state}
}
export default mobileStore;

创建第一个sagaStore，redux>reducers>demoStore.tsx，异步store

/*** @description 定义相关接口或者枚举* */export enum DemoStoreActionEnum{WATCH='watchDemoStore',CHANGE='demoStoreChange'
}interface DemoStoreStateInterface {num:number
}export interface DemoStoreActionInterface {type: DemoStoreActionEnumpayload: DemoStoreStateInterface
}/*** @description store逻辑* */
const initState:DemoStoreStateInterface = {num: 100
}const demoStore = (state:DemoStoreStateInterface = initState, action: DemoStoreActionInterface):DemoStoreStateInterface => {switch (action.type) {case DemoStoreActionEnum.CHANGE:return action.payloaddefault:return state}
};
export default demoStore;

依次创建redux>sagas>demo.tsx、redux>sagas>mainSaga.tsx

saga的应用场景是复杂异步，如长时事务LLT(long live.transcation)等业务场景。
方便测试，可以使用takeEvery打印logger。
提供takeLatest/takeEvery/throttle方法，可以便利的实现对事件的仅关注最近事件、关注每一次、事件限频
提供cancel/delay方法，可以便利的取消、延迟异步请求
提供race(effects),[…effects]方法来支持竞态和并行场景

提供channel机制支持外部事

import { call, put, takeEvery, takeLatest,take,all,race,throttle,delay,fork,cacel,cancelled} from 'redux-saga/effects';
takeEvery：被调用的任务无法控制何时被调用， 它们将在每次 action 被匹配时一遍又一遍地被调用。并且它们也无法控制何时停止监听。
take：与takeEver相反，与 action 只会监听一次，使用一次就销毁
takeLatest：每次 action 被匹配，当有action正在匹配，会放弃正在匹配的action，执行最新的
call: saga通过 Generator函数实现，在yield函数后执行effect，其中call是用于执行某些异步操作的。
put: 和上面的call一样，中间件提供put 来把action丢到中间件中去dispatch，好处同样是便于测试
all: 同步执行多个任务使需要用到 yield all([call(fetch, '/users'),call(fetch, '/repos')])
race: 和promise中的race一个概念，执行多个任务，受到响应后则继续执行 yield race({posts: call(fetchApi, '/posts'),timeout: call(delay, 1000)})
fork:fork和take不同，take会和call一样阻塞代码的执行，知道结果返回，fork则不会，它会将任务启动并且不阻塞代码的执行，fork会返回一个task，可以用cacel（task）来取消任务
cacel:来取消任务
cancelled:如果当前任务，被cacel取消，则返回true
throttle:节流

//redux>sagas>demo.tsx
import {call, put, takeEvery} from "@redux-saga/core/effects";
import {DemoStoreActionEnum, DemoStoreActionInterface} from "@reducers/demoStore";// 延时器
const delay = (ms:number) => new Promise(resolve => setTimeout(resolve, ms));function* asyncDemoSaga(action:DemoStoreActionInterface):Generator {yield call(delay,2000);yield put({ type: DemoStoreActionEnum.CHANGE,payload:action.payload})
}function* watchDemoSaga():Generator {yield takeEvery(DemoStoreActionEnum.WATCH, asyncDemoSaga)
}export default watchDemoSaga;

//redux>sagas>mainSaga.tsximport {all} from "redux-saga/effects"
import watchDemoSaga from "@sagas/demo";// saga中间件 主saga，用于区别是否需要saga来处理异步操作，如果没有异步，则放行
function* mainSaga() {yield all([// 监听 saga 中有 userWatchSaga 操作，所以会拦截这个 actionwatchDemoSaga(),])
}// 主saga要对外暴露出去
export default mainSaga;

修改_app.tsx

import type { AppProps } from "next/app";
import {ConfigProvider} from "antd";
import them from "./antTheme.module.scss";
import "@css/iframe.scss";
import {useEffect} from "react";
import {useDispatch} from "react-redux";
import { MobileStoreActionEnum} from "@reducers/mobileStore";
import wrapper from "@/redux";
import {Dispatch} from "redux";const App = ({ Component, pageProps }: AppProps) => {const dispatch:Dispatch = useDispatch();useEffect(():void => {//判断是哪个客户端（pc，mobile），主要用来兼容样式if (navigator.userAgent.match(/(phone|pad|pod|iPhone|iPod|ios|iPad|Android|Mobile|BlackBerry|IEMobile|MQQBrowser|JUC|Fennec|wOSBrowser|BrowserNG|WebOS|Symbian|Windows Phone)/i)) {dispatch({type:  MobileStoreActionEnum.CHANGE,payload: true});//增加全局class，用于设置全局样式document.getElementsByTagName('html')[0].className = 'mobile';}else{//增加全局class，用于设置全局样式document.getElementsByTagName('html')[0].className = 'pc';}},[])return  <ConfigProvider theme={{token: them}}><Component {...pageProps}/></ConfigProvider>
}export default wrapper.withRedux(App)

创建redux>index.tsx

import { createWrapper, MakeStore } from "next-redux-wrapper";
import { applyMiddleware, createStore, Store} from "redux";
import createSagaMiddleware, {SagaMiddleware} from "redux-saga";
import { composeWithDevTools } from "redux-devtools-extension/developmentOnly";import rootReducer from "@store/index";
import mainSaga from "@sagas/mainSaga"; //异步初始化storeconst makeStore: MakeStore<Store> = () => {const sagaMiddleware:SagaMiddleware = createSagaMiddleware()const store:Store = createStore(rootReducer, composeWithDevTools(applyMiddleware(sagaMiddleware)))sagaMiddleware.run(mainSaga)return store
}export default createWrapper<Store>(makeStore)

封装pc+移动端兼容性button组件，创建兼容性ui框架，需要把4. antd、antd-mobile二次封装，并合并一些共同的参数，修改成共同的样式；创建非ui框架的组件，只要注意像素单位的兼容就行，如：mobile.module.scss、pc.module.scss，postcss已限制pc.module 样式文件的转换

修改.eslintrc.json

{"extends": "next/core-web-vitals","rules": {"react/display-name": "off"}
}

创建components>antd>button

创建pc端button组件button>pc.tsx、button>pc.module.scss

//button>pc.tsx/*** @description pc端Button组件* *//**********第三方插件、组件引用**********/
import React from "react";
import {Button as PcButton, ButtonProps} from "antd";
import {SizeType} from "antd/es/config-provider/SizeContext";
import {ButtonType} from "antd/es/button";
/**********当前目录文件*********/
import styles from "./pc.module.scss";export interface PcButtonInterface {type?: ButtonType,size?: SizeType,onClick?: ButtonProps['onClick'],children?: React.ReactNode
}const Button = React.memo((props:PcButtonInterface)=>{return <PcButton className={styles.button}type={props.type}size={props.size}onClick={props.onClick}>{ props.children }</PcButton >
});export default Button;

创建移动端button组件button>mobile.tsx、button>mobile.module.scss

//button>mobile.tsx/*** @description 移动端Button组件* *//**********第三方插件、组件引用**********/
import React from "react";
import {Button as MobileButton, ButtonProps} from "antd-mobile";
/**********当前目录文件*********/
import styles from "./mobile.module.scss";export interface MobileButtonInterface {type?: ButtonProps['color'],size?: ButtonProps['size'],onClick?:ButtonProps['onClick'],children?: React.ReactNode;
}const Button = React.memo((props:MobileButtonInterface)=>{return  <MobileButton className={styles.button}color={props.type}size={props.size}onClick={props.onClick}>{ props.children }</MobileButton>
});export default Button;

创建兼容pc+移动组件button>index.tsx、button>index.scss

//button>index.tsx/*** @description 同时兼容pc、移动的Button组件* */import React, {useState} from "react";
import PcButton, {PcButtonInterface} from "./pc";
import MobileButton, {MobileButtonInterface} from "./mobile";
import {useSelector, useStore} from "react-redux";
import {Store} from "redux";interface ClientButtonInterface {type?: PcButtonInterface['type'] & MobileButtonInterface['type'],size?: PcButtonInterface['size'] & MobileButtonInterface['size'],onClick?: PcButtonInterface['onClick'] & MobileButtonInterface['onClick'],children?: React.ReactNode
}const Button = React.memo((props: ClientButtonInterface) => {const store:Store = useStore();const storeState = store.getState() as any;const [mobile,setMobile]= useState(storeState.mobileStore)useSelector((state:any):void => {if(mobile!=state?.mobileStore){setMobile(state?.mobileStore);}});return <>{mobile ? <MobileButton {...props}/> : <PcButton {...props}/>}</>
});export default Button;

//button>index.scss.button{font-size: 14px;height: 32px;padding: 4px 15px;border-radius: 6px;
}

修改button>mobile.module.scss、button>pc.module.scss
```
@import "./index";
```

使用

import Button from "@/components/antd/button";<Button type="primary">antd</Button>

持续储存

安装依赖，https://www.npmjs.com/package/redux-persist
```
yarn add redux-persist
```

修改redux>index.tsx

import { createWrapper, MakeStore } from "next-redux-wrapper";
import { applyMiddleware, createStore, Store} from "redux";
import createSagaMiddleware, {SagaMiddleware} from "redux-saga";
import { composeWithDevTools } from "redux-devtools-extension/developmentOnly";
import {persistStore, persistReducer} from "redux-persist";
import storage from "redux-persist/lib/storage";import rootReducer from "@store/index";
import mainSaga from "@sagas/mainSaga"; //异步初始化store//持久化储存配置
const persistConfig = {key: 'root', //在localStorge中生成key为root的值storage,blacklist:['demoSaga'] //设置某个reducer数据不持久化
}
const makeStore: MakeStore<Store> = () => {const sagaMiddleware:SagaMiddleware = createSagaMiddleware();const rootPersistReducer = persistReducer(persistConfig, rootReducer)const store:Store = createStore(rootPersistReducer, composeWithDevTools(applyMiddleware(sagaMiddleware)))sagaMiddleware.run(mainSaga);persistStore(store);return store
}export default createWrapper<Store>(makeStore)

五、页面配置

设置页面标题：_app.tsx

import '@/assets/css/globals.scss';
import type { AppProps } from 'next/app';
import Head from 'next/head';
import { ConfigProvider } from 'antd';
import them from '@/pages/app.module.scss';export default function App({ Component, pageProps }: AppProps) {return <><Head><title>页面标题</title></Head><ConfigProvider theme={{token: them}}><Component {...pageProps}/></ConfigProvider></>
}

设置页面框架代码：_document.tsx，只会在初始化预渲染，设置的内容只会在build后生效

import {Html, Head, Main, NextScript} from 'next/document'export default function Document() {return (<Html lang="en"><Head><link rel="icon" href="/favicon.ico"></link><meta name="description" content="页面框架"></meta></Head><body><Main/><NextScript/></body></Html>)
}

自定义404页面，pages下新建404.tsx页面

export default function Custom_404(){return <>404页面</>
}

六、图片引用

方法一：原生img，使用’ '可能会导致LCP变慢和带宽增加，build时会有此警告
```
import idCard from '@img/idCard.png';
<img src={idCard.src}/>
```

方法二：使用 next/image；简单的图片引用建议用原生img

//建议用div包括起来，不单独使用，单独使用会自动生成很多自带的样式；Image会自适应div大小
import idCard from '@img/idCard.png';
import Image from 'next/image';
<div><Image src={idCard} alt=""/></div>

next/image 自带优化的api适用于SSR，SSG中无法使用，可以改动 next.config.js 配置解决

const nextConfig = {reactStrictMode: true,swcMinify: true,images:{unoptimized:true}
}module.exports = nextConfig

安装sharp包（高性能图片处理器），Next.js将自动使用它的图像优化
```
yarn add sharp
```

七、动态路由

创建pages>demo文件夹

创建demo>index.tsx、demo>index.scss、demo>mobile.module.scss、demo>pc.module.scss

//demo>index.tsximport Image from "next/image";
import idCard from "@img/idCard.png";
import useStyle from "@hook/styleHook";
import mobileStyle from "./mobile.module.scss";
import pcStyle from "./pc.module.scss";const Demo = () => {const styles = useStyle(pcStyle,mobileStyle);return <div className={styles.P_demo}><Image src={idCard} alt=""/></div>;
};export default Demo

//demo>index.scss.P_demo{img{width: 100px;height: 100px;}
}

//demo>mobile.module.scss、demo>pc.module.scss
@import "./index";

修改page>index.tsx

import {NextRouter, useRouter} from "next/router";const router:NextRouter = useRouter();
<Button onClick={() => router.push('/demo')}>goDemo</Button>

自定义路由，改动 next.config.js 配置

const nextConfig = {...//自定义路由，通常不需要自定义路由，适用于SSexportPathMap: async ()=>{return {'/':{page:'/index'}}},...
}module.exports = nextConfig

动态路由

修改demo>index.tsx为demo>[id].tsx

import Image from "next/image";
import idCard from "@img/idCard.png";
import useStyle from "@hook/styleHook";
import mobileStyle from "./mobile.module.scss";
import pcStyle from "./pc.module.scss";
import {NextRouter, useRouter} from "next/router";const Demo = () => {const styles = useStyle(pcStyle,mobileStyle);const router:NextRouter = useRouter();console.log(router.query)return <div className={styles.P_demo}><Image src={idCard} alt=""/></div>;
};export default Demo

修改pages>index.tsx

<Button onClick={() => router.push('/demo/1')}>goDemo</Button>

路由嵌套

[id].tsx：paths 里面参数只有一个id ，/demo/1
[…routers].tsx ：paths 里面可以包含多个路径，以数组形式发挥参数，/demo/1/3
[id]/[comment].tsx：paths 里面可以包含多个路径，以json形式返回，/demo/1/3

八、接口api

NEXT.js存在CSR/SSR/SSG 三种请求方式，最多存在两种：1、CSR+SSR；2、CSR+SSG
CSR请求：常规前端项目中请求方式，由客户端浏览器端发送请求，拿到数据后再渲染道页面
SSR请求：由服务端发起请求（NEXT.js中的node.js），拿到数据后，组装HTML，再把HTML返回到客户端浏览器
SSG请求：与SSR请求类似，由服务端发起请求（NEXT.js中的node.js），拿到数据后，组装HTML，然后静态化输出。由于是完全静态化输出，当数据变化时，必须重新静态化才能更新页面

安装axios
```
yarn add axios
```

封装axios

/*** @description axios公共请求封装* */
import axios, {AxiosResponse, InternalAxiosRequestConfig} from "axios";/*** @description 定义相关接口或者枚举* *///请求枚举
export enum MethodEnum {Get='GET',Post='POST'
}//返回结果
export interface ResponseResultInterface<Body> {Header:{},Body: Body
}//请求参数
export interface RequestInterface<params> {url:string,params?:params,method?:MethodEnum
}/*** 封装axios* */// 添加请求拦截器
axios.interceptors.request.use( (config:InternalAxiosRequestConfig)=>{return config;
}, (error)=>{return Promise.reject(error);
});// 添加响应拦截器
axios.interceptors.response.use( (response:AxiosResponse) => {return response;
}, (error) => {return Promise.reject(error);
});/*** @method useAxiosRequest axios请求封装* @param requestPar { RequestInterface } 请求url* @return Promise* */
const baseRequest= async <params,responseData>(requestPar:RequestInterface<params>):Promise<responseData> => {const requestResult:AxiosResponse = await axios({method: requestPar.method || MethodEnum.Post,url: requestPar.url,data: requestPar.params});return requestResult.data as responseData;
};export default baseRequest;

配置引入路径，修改 tsconfig.json

"paths": {... "@common/*": ["./src/common/*"],"@api/*": [  "./src/pages/api/*"],...
}

创建api服务，pages>api>demoApi.tsx

// Next.js API route support: https://nextjs.org/docs/api-routes/introduction
import type { NextApiRequest, NextApiResponse } from "next";
import {ResponseResultInterface} from "@common/baseRequest";export interface DemoInterface {id: number,name?: string
}type ApiDemoType = ResponseResultInterface<DemoInterface>export default function demoApi(req: NextApiRequest,res: NextApiResponse<ApiDemoType>
):void {let data:ApiDemoType= {Header:{},Body:{id:-1}};if(req.method == "GET"){const id:number = Number(req.query.id);data.Body.id = id;switch (id) {case 1:data.Body.name = "我是API服务1"break;}res.status(200).json(data)}else{res.status(200).json(data)}
}

修改pages>demo>[id].tsx

import Image from "next/image";
import {NextRouter, useRouter} from "next/router";
import {GetServerSideProps} from "next";
import {ParsedUrlQuery} from "querystring";
import idCard from "@img/idCard.png";
import useStyle from "@hook/styleHook";
import baseRequest, {MethodEnum, RequestInterface} from "@common/baseRequest";
import {DemoInterface} from "@api/demoApi";
import mobileStyle from "./mobile.module.scss";
import pcStyle from "./pc.module.scss";const Demo = (props: DemoInterface) => {const styles = useStyle(pcStyle,mobileStyle);const router:NextRouter = useRouter();console.log(router.query)console.log(props);return <div className={styles.P_demo}><Image src={idCard} alt=""/></div>;
};/*** getServerSideProps 适用于SSR，不适用于SSG* getStaticProps SSR 和 SSG 均支持，但仅在网站build时候发起API请求* getServerSideProps 和 getStaticProps请求都是在服务端进行不涉及跨域* */export const getServerSideProps: GetServerSideProps = async (paths) => {const query:ParsedUrlQuery = paths.query;const requestOption:RequestInterface<undefined>={url:`http://localhost:3000/api/demoApi?id=${query.id}`,method:MethodEnum.Get}const requestResult = await baseRequest<DemoInterface>({url: requestOption.url,method:requestOption.method});return {props: requestResult.Body}
}/*** SSG 静态生成* getStaticPaths build 时会生成多个页面* 只是用于getStaticProps* */
// export const getStaticPaths: GetStaticPaths<DemoParams> = async () => {
//     // const arr: string[] = ['1', '2'];
//     // const paths = arr.map((id) => {
//     //     return {
//     //         params: { id },
//     //     }
//     // })
//     // return {
//     //     //这里的路由参数提供给getStaticProps使用
//     //     paths,
//     //     //不在以上参数路由将返回404
//     //     fallback: false
//     // }
//     const id1:DemoParams = {id: '1'};
//     const id2:DemoParams = {id: '2'};
//     const staticPathOption = {
//         //这里的路由参数提供给getStaticProps使用
//         path: [{
//             params: id1
//         }, {
//             params: id2
//         }],
//         //不在以上参数路由将返回404dc
//         // fallback: false
//     }
//     return staticPathOption
// }export default Demo

九、生成静态网站（SSG）

设置SSG的export命令，修改package.json

"scripts": {"dev": "next dev","build": "next build && next export","start": "next start","lint": "next lint"
},

然后执行yarn build，该命令回显执行next build 再执行 next export，输出目录为根目录下的out目录

设置静态资源的bassePath，如果发布在服务器二级目录需要设置，更改next.config.js 配置；/app为二级目录

const nextConfig = {reactStrictMode: true,swcMinify: true,basePath: process.env.NODE_ENV == "development"? '':'/app'images:{unoptimized:true}
}module.exports = nextConfig

"scripts": {"dev": "next dev","build": "next build && next export -o app","start": "next start","lint": "next lint"
},

十、以SSR模式运行项目

```
yarn build
yarn start -p 4000 //默认端口3000
```

十一·、以SSR模式运行项目

安装依赖
```
npm install cross-env -g
```

package.json

 "scripts": {"dev": "next dev","build": "next build && next export","start": "next start","lint": "next lint","customBuild": "cross-env BASE_PSTH=%npm_config_base% next build && next export -0 %npm_config_base%","customBuild": "cross-env BASE_PSTH=$npm_config_base next build && next export -0 $npm_config_base%"//mac},

运行npm run customBuild --base=/demo --out=demo

十二、多环境开发配置

安装依赖
```
yarn add cross-env --dev
```
根目录下创建.env.production(生产环境)、.env.development(开发环境)、.env.test(测试环境)、.env.local(默认环境，始终覆盖默认设置)、.env(所有环境)
```
//.env.testTEST=test //只有服务端可以获取到
NEXT_PUBLIC_HOST=http://127.0.0.1:3000/ //变量暴漏给浏览器端，加NEXT_PUBLIC_
```

指定环境运行，修改package.json

  "scripts": {"dev:test": "cross-env NODE_ENV=test next dev",},页面打印：console.log(process.env.TEST);console.log(process.env.NEXT_PUBLIC_HOST);

十二、项目部署

安装nginx：https://nginx.org/en/download.html，下载合适的版本，解压到任意位置 nginx 配置

启动cd到nginx目录运行 nginx.exe
启动cd到nginx目录运行start nginx，访问http://localhost:80 正常访问nginx运行成功
启动cd到nginx目录运行重新加载配置
启动cd到nginx目录运行nginx -s stop 停止
启动cd到nginx目录运行nginx -s quit 正常关闭
启动cd到nginx目录运行nginx -s reopen 重新打开

配置nginx.conf

server {listen       9001;server_name  localhost;# server_name  btyhub.site, www.btyhub.site;# ssl两个文件，放在 nginx的conf目录中# ssl_certificate      btyhub.site_bundle.pem;# ssl_certificate_key  btyhub.site.key;# ssl_session_cache    shared:SSL:1m;# ssl_session_timeout  5m;# ssl_ciphers  HIGH:!aNULL:!MD5;# ssl_prefer_server_ciphers  on;# 代理到Next的服务，默认3000端口，也可以在start的时候指定location / {proxy_pass    http://127.0.0.1:3000/;}}

安装 pm2，node进程管理工具：npm install -g pm2
把打包后得.next，next.config.js 上传服务器

package.json，运行yarn install

{"name": "react_common","version": "0.1.0","private": true,"scripts": {"start": "next start"},"dependencies": {//项目下package.json 中dependencies},"devDependencies": {//项目下package.json 中devDependencies"child_process": "^1.0.2"
}

安装child_process，运行yarn add child_process --dev，创建start.js

let exec = require("child_process").exec;
//yarn start -p 9003 指定端口运行项目
exec("yarn start", {windowsHide: true});

运行pm2 start start.js --name projectName

十三、next.config.js

```
const configs = {// 编译文件的输出目录distDir: 'dest',// 是否给每个路由生成EtaggenerateEtags: true,// 页面内容缓存配置onDemandEntries: {// 内容在内存中缓存的时长（ms）maxInactiveAge: 25 * 1000,// 同时缓存多少个页面pagesBufferLength: 2,},// 在pages目录下那种后缀的文件会被认为是页面pageExtensions: ['jsx', 'js'],// 配置buildIdgenerateBuildId: async () => {if (process.env.YOUR_BUILD_ID) {return process.env.YOUR_BUILD_ID}// 返回null使用默认的unique idreturn null},// 手动修改webpack configwebpack(config, options) {return config},// 修改webpackDevMiddleware配置webpackDevMiddleware: config => {return config},// 可以在页面上通过 procsess.env.customKey 获取 valueenv: {customKey: 'value',},//CDN 前缀支持assetPrefix: 'https://cdn.mydomain.com',//静态优化指标devIndicators: {autoPrerender: false},//禁止etag生成generateEtags: false,//禁止x-powered-by,x-powered-by用于告知网站是用何种语言或框架编写的poweredByHeader: false//自定义路由exportPathMap: async ()=>{return {'/':{page:'/index'}}},images:{unoptimized:true},// 只有在服务端渲染时才会获取的配置serverRuntimeConfig: {mySecret: 'secret',secondSecret: process.env.SECOND_SECRET,},// 在服务端渲染和客户端渲染都可获取的配置publicRuntimeConfig: {staticFolder: '/static',},
}