qiankun是什么:
基于 single-spa
进行二次开发,是一种类似于微服务的架构,是将一个大型应用拆分成若干个更小、更简单,可以独立开发、测试和部署的子应用,然后由一个基座应用根据路由进行应用切换,主要是为了解决大型工程在变更、维护、扩展等方面的困难而提出的!
qiankun的优势:
1、技术兼容性好,各个子应用可以基于不同的技术架构;
2、接入方式,让你接入微应用像使用 iframe 一样简单;
3、耦合性更低,各个团队可以独立开发,互不干扰;
4、可维护性和扩展性更好,便于局部升级和增量升级;
5、JS 沙箱,确保微应用之间 全局变量/事件 不冲突;
qiankun的劣势:
1、无法支持多实例场景;
2、对vite很不友好,需要改动很多的代码;
3、子应用间的资源共享能力较差,使得项目总体积变大;
4、开发人员要处理分布式系统的复杂性;
5、总体的项目体积比较大,运行服务有时较慢;
我的qiankun目录结构:
创建主应用:
mkdir qiankun(可自定义文件名) //创建文件 cd qiankun //进入文件 vue create qiankun-base(可自定义文件名) //创建vue项目 cd qiankun-base //进入创建好的项目 npm i qiankun -s //进入项目下载qiankun npm run serve //起服务
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一、 在vue create qiankun-base的时候要注意:
1、手动选择版本(最好选择手动)
2、检查项目所需的功能(最好不要选择linter/formatter这个是ESlint)
3、选择要启动项目的Vue.js版本
4、对路由器使用history模式
5、选择一个css预处理器(一定要选择scss要不然后期想使用很麻烦)
6、你喜欢把babel放在哪里
7、将其另存为将来项目的预设
8、打开项目,进入项目,启动项目cd main(文件名),进入后要下载 npm i qiankun –s,然后再npm run serve(启动服务)!此步骤缺一不可!
二、需要改动的vue和js文件:
1、打开文件src下的main.js按照以下操作(要下载并挂载element ui后边菜单要用):
import Vue from 'vue' import App from './App.vue' import router from './router' import ElementUI from 'element-ui'; import 'element-ui/lib/theme-chalk/index.css'; import {registerMicroApps, start} from 'qiankun'; // 引入qiankun里的两个方法 Vue.config.productionTip = false Vue.use(ElementUI); const apps = [ { name: 'vueApp', // 应用的名字 // 一定要跟你你创建的项目的名称一致 entry: 'http://localhost:10000/', // 默认加载这个html,解析里面的js动态的执行(子应用必须支持跨域,内部使用的是 fetch) // 其实就是你其他子应用抛出的端口名 container: '#vue', // 要渲染到的容器名id // 你在主应用中创建的dom元素名 activeRule: '/vue' ,// 通过哪一个路由来激活 // 这个是子应用的路径 sandbox: { strictStyleIsolation: true // 开启样式隔离 } }, { name: 'reactApp', entry: 'http://localhost:20000/', container: '#react', activeRule: '/react', sandbox: { strictStyleIsolation: true // 开启样式隔离 } }, { name: 'tabltest', entry: 'http://localhost:5501/', container: '#vue2', activeRule: '/vue2', sandbox: { strictStyleIsolation: true // 开启样式隔离 } } ]; registerMicroApps(apps); // 注册应用 start(); // 开启应用 new Vue({ router, render: h => h(App) }).$mount('#app')
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2、文件src下的App.vue按照操作:(注意)不要给外层div盒子加id、class或其他预选择器:
<template> <div style="display:flex;"> <!-- <div class="left"> --> <el-menu :router="true" class="el-menu-vertical-demo" style="width: 15%;"> <el-submenu index="1"> <template slot="title"> <i class="el-icon-location"></i> <span slot="title">乾坤架构</span> </template> <el-menu-item-group> <el-menu-item index="/vue">xx模块</el-menu-item> <el-menu-item index="/react">xx模块</el-menu-item> <el-menu-item index="/vue2">xx模块</el-menu-item> <el-menu-item index="/">xx模块</el-menu-item> </el-menu-item-group> </el-submenu> </el-menu> <!-- </div> --> <!-- <div class="right"> --> <router-view v-show="$route.name"></router-view> <div id="vue"></div> <div id="react"></div> <div id="vue2"></div> </div> <!-- </div> --> </template> <style > html,body{ width: 100%; height: 100%; margin: 0; padding: 0; } .el-menu-vertical-demo:not(.el-menu--collapse) { width: 200px; min-height: 400px; } </style>
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主应用需要操作的就结束了!
创建vue子应用:
cd.. //外层主应用的外层 vue create qiankun-vue //创建子应用 cd qiankun-vue //进入子应用 npm run serve //启动服务
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注意:子应用不需要下载qiankun
一、对vue子应用做的操作:
1、请学习主应用的下载操作;
2、打开并进入下载的子应用中src下的main.js;
import Vue from 'vue' import App from './App.vue' import router from './router' Vue.config.productionTip = false let instance = null; function render(props) { // props 组件通信 instance = new Vue({ router, render: h => h(App) }).$mount('#app') // 这里是挂载到自己的HTML中,基座会拿到这个挂载后的HTML,将其插入进去 } if (!window.__POWERED_BY_QIANKUN__) { // 如果是独立运行,则手动调用渲染 render(); } if(window.__POWERED_BY_QIANKUN__){ // 如果是qiankun使用到了,则会动态注入路径 __webpack_public_path__ = window.__INJECTED_PUBLIC_PATH_BY_QIANKUN__; } // 根据 qiankun 的协议需要导出 bootstrap/mount/unmount export async function bootstrap(props) { }; export async function mount(props) { render(props); }; export async function unmount(props) { instance.$destroy(); };
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3、进入的子应用中vue.config.js(如果没有vue.config.js的话创建一个这样的js文件);
module.exports = { devServer: { port: 10000, headers:{ 'Access-Control-Allow-Origin': '*' // 允许跨域 } }, configureWebpack: { output: { library: 'vueApp', libraryTarget: 'umd' } } };
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4、打开并进入下载的子应用中src下的router文件下的index.js(不改变在主应用切换子应用的路由是无法切换);
const router = new VueRouter({ mode: 'history', // qiankun这里也需要改变子应用的路径变化不对 base: '/vue', routes })
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以上就是vue子应用要改变的文件及其代码!
创建react子应用:
cd.. //回退到qiankun文件夹中(如果在就不必做此操作) npx create-react-app qiankun-react //创建react项目 cd qiankun-react //进入react项目中 npm start //起服务
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注意:子应用不需要下载qiankun
一、对react子应用做的操作:
1、在终端输入命令npx create-react-app reactapp;
npx create-react-app qiankun-react
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2、找到src下的index.js配置箭头所指及以下方法;
import React from 'react'; import ReactDOM from 'react-dom'; import './index.css'; import App from './App'; function render(){ ReactDOM.render( <React.StrictMode> <App /> </React.StrictMode>, document.getElementById('root') ); } if(!window.__POWERED_BY_QIANKUN__){ render(); } export async function bootstrap(){ } export async function mount() { render() } export async function unmount(){ ReactDOM.unmountComponentAtNode( document.getElementById('root')); }
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3、找到config-overrides.js文件里配置若没有创建一个文件config-overrides.js;
module.exports = { webpack:(config)=>{ config.output.library = 'reactApp'; config.output.libraryTarget = 'umd'; config.output.publicPath = 'http://localhost:20000/'; return config; }, devServer:(configFunction)=>{ return function (proxy,allowedHost){ const config = configFunction(proxy,allowedHost); config.headers = { "Access-Control-Allow-Origin":'*' } return config } } }
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4、找到src下的serviceWorker.js文件给里面添加方法,函数,拦截(如果子应用在主应用中报错再将此代码与你的这个文件代码替换);
// This optional code is used to register a service worker. // register() is not called by default. // This lets the app load faster on subsequent visits in production, and gives // it offline capabilities. However, it also means that developers (and users) // will only see deployed updates on subsequent visits to a page, after all the // existing tabs open on the page have been closed, since previously cached // resources are updated in the background. // To learn more about the benefits of this model and instructions on how to // opt-in, read https://bit.ly/CRA-PWA const isLocalhost = Boolean( window.location.hostname === 'localhost' || // [::1] is the IPv6 localhost address. window.location.hostname === '[::1]' || // 127.0.0.0/8 are considered localhost for IPv4. window.location.hostname.match( /^127(?:\.(?:25[0-5]|2[0-4][0-9]|[01]?[0-9][0-9]?)){3}$/ ) ); export function register(config) { if (process.env.NODE_ENV === 'production' && 'serviceWorker' in navigator) { // The URL constructor is available in all browsers that support SW. const publicUrl = new URL(process.env.PUBLIC_URL, window.location.href); if (publicUrl.origin !== window.location.origin) { // Our service worker won't work if PUBLIC_URL is on a different origin // from what our page is served on. This might happen if a CDN is used to // serve assets; see https://github.com/facebook/create-react-app/issues/2374 return; } window.addEventListener('load', () => { const swUrl = `${process.env.PUBLIC_URL}/service-worker.js`; if (isLocalhost) { // This is running on localhost. Let's check if a service worker still exists or not. checkValidServiceWorker(swUrl, config); // Add some additional logging to localhost, pointing developers to the // service worker/PWA documentation. navigator.serviceWorker.ready.then(() => { console.log( 'This web app is being served cache-first by a service ' + 'worker. To learn more, visit https://bit.ly/CRA-PWA' ); }); } else { // Is not localhost. Just register service worker registerValidSW(swUrl, config); } }); } } function registerValidSW(swUrl, config) { navigator.serviceWorker .register(swUrl) .then(registration => { registration.onupdatefound = () => { const installingWorker = registration.installing; if (installingWorker == null) { return; } installingWorker.onstatechange = () => { if (installingWorker.state === 'installed') { if (navigator.serviceWorker.controller) { // At this point, the updated precached content has been fetched, // but the previous service worker will still serve the older // content until all client tabs are closed. console.log( 'New content is available and will be used when all ' + 'tabs for this page are closed. See https://bit.ly/CRA-PWA.' ); // Execute callback if (config && config.onUpdate) { config.onUpdate(registration); } } else { // At this point, everything has been precached. // It's the perfect time to display a // "Content is cached for offline use." message. console.log('Content is cached for offline use.'); // Execute callback if (config && config.onSuccess) { config.onSuccess(registration); } } } }; }; }) .catch(error => { console.error('Error during service worker registration:', error); }); } function checkValidServiceWorker(swUrl, config) { // Check if the service worker can be found. If it can't reload the page. fetch(swUrl, { headers: { 'Service-Worker': 'script' }, }) .then(response => { // Ensure service worker exists, and that we really are getting a JS file. const contentType = response.headers.get('content-type'); if ( response.status === 404 || (contentType != null && contentType.indexOf('javascript') === -1) ) { // No service worker found. Probably a different app. Reload the page. navigator.serviceWorker.ready.then(registration => { registration.unregister().then(() => { window.location.reload(); }); }); } else { // Service worker found. Proceed as normal. registerValidSW(swUrl, config); } }) .catch(() => { console.log( 'No internet connection found. App is running in offline mode.' ); }); } export function unregister() { if ('serviceWorker' in navigator) { navigator.serviceWorker.ready .then(registration => { registration.unregister(); }) .catch(error => { console.error(error.message); }); } }
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以上就是react子应用需要操作的东西!