qiankun：react18主应用 + 微应用 react18 + vue3

一：主应用
搭建react项目

npx create-react-app react-qiankun-main

安装Antd

npm install antd –save

在 index.js中引入

import { ConfigProvider } from "antd";
import zhCN from "antd/locale/zh_CN";
import "antd/dist/reset.css";
// ...
root.render(
  <ConfigProvider locale={zhCN}>
    <React.StrictMode>
      <App />
    </React.StrictMode>
  </ConfigProvider>
);

安装react-router ：

npm i react-router-dom

在 index.js中引入

import { BrowserRouter } from "react-router-dom";

// …
 <BrowserRouter>
    <ConfigProvider locale={zhCN}>
      <React.StrictMode>
        <App />
      </React.StrictMode>
    </ConfigProvider>
  </BrowserRouter>
  

安装 qiankun ：

 npm i qiankun -S

在主应用中注册微应用，在 index.js中引入

// …
import { registerMicroApps, start } from "qiankun";

registerMicroApps([
  {
    name: "react app", // 子应用的名称，必须唯一。
    entry: "//localhost:3004", // 子应用项目本地运行地址
    container: "#lyContainer", //  子应用的容器（子应用嵌入到主项目id为lyContainer的地方）
    activeRule: "/react-app", // 子应用激活时的路由规则（子应用路由）
  },
  {
    name: "vue app",
    entry: "//localhost:5173",
    container: "#lyContainer",
    activeRule: "/vue-app",
  },
]);

start();
// …

注：子应用嵌入到主应用的地方，id要跟index.js下registerMicroApps里面的container设置一致

修改App.js文件，将如下代码放入App.js

import React, { useState } from "react";
import "./App.css";
import {
  MenuFoldOutlined,
  MenuUnfoldOutlined,
  UserOutlined,
  VideoCameraOutlined,
} from "@ant-design/icons";
import { Layout, Menu, Button } from "antd";
import { NavLink } from "react-router-dom";
const { Header, Sider, Content } = Layout;

function App() {
  const [collapsed, setCollapsed] = useState(false);
  return (
    <div className="App">
      <Layout className="layout-container">
        <Sider trigger={null} collapsible collapsed={collapsed}>
          <div className="logo">logo</div>
          <Menu
            theme="dark"
            mode="inline"
            defaultSelectedKeys={["1"]}
            items={[
              {
                key: "1",
                icon: <UserOutlined />,
                label: <NavLink to="/vue-app">vue应用</NavLink>,
              },
              {
                key: "2",
                icon: <VideoCameraOutlined />,
                label: <NavLink to="/react-app">react应用</NavLink>,
              },
            ]}
          />
        </Sider>
        <Layout className="layout-main">
          <Header className="header">
            <Button
              type="text"
              icon={collapsed ? <MenuUnfoldOutlined /> : <MenuFoldOutlined />}
              onClick={() => setCollapsed(!collapsed)}
              className="collapse-btn"
            />
          </Header>
          <Content id="lyContainer" className="layout-content">
            Content
          </Content>
        </Layout>
      </Layout>
    </div>
  );
}

export default App;

修改App.css样式如下：

#root,
.App,
.layout-container {
  width: 100%;
  height: 100%;
}
.logo {
  height: 64px;
  line-height: 64px;
  color: #fff;
  text-align: center;
}
.layout-main {
  overflow-y: auto;
}
.header {
  padding: 0;
  background-color: #fff;
}
.header .collapse-btn {
  font-size: 16px;
  width: 64px;
}
.layout-content{
  padding: 24px;
}

效果如下：

二、react微应用

npx create-react-app react-qiankun-sub
cd react-qiankun-sub
npm start

修改index.html下的id

在src下新建public-path.js，将如下代码放进去

if (window.__POWERED_BY_QIANKUN__) {
  // eslint-disable-next-line no-undef
  __webpack_public_path__ = window.__INJECTED_PUBLIC_PATH_BY_QIANKUN__;
}

安装react-router ：

npm i react-router-dom

设置 history 模式路由的 base，并在index.js中导入public-path.js，修改index.js中代码如下：

import { BrowserRouter } from "react-router-dom";

import "./public-path";

let root = null;
function render(props) {
  const { container } = props;
  root =
    root ||
    ReactDOM.createRoot(
      container
        ? container.querySelector("#subRoot")
        : document.getElementById("subRoot")
    );
  root.render(
    <BrowserRouter
      basename={window.__POWERED_BY_QIANKUN__ ? "/react-app" : "/"}
    >
      <React.StrictMode>
        <App />
      </React.StrictMode>
    </BrowserRouter>
  );
}

if (!window.__POWERED_BY_QIANKUN__) {
  render({});
}

export async function bootstrap() {
  console.log("[react16] react app bootstraped");
}

export async function mount(props) {
  console.log("[react16] props from main framework", props);
  render(props);
}
// https://github.com/kobeyk/micro-app-react-template/blob/main/config-overrides.js
export async function unmount(props) {
  // const { container } = props;
  root.unmount();
  root = null;
}

// If you want to start measuring performance in your app, pass a function
// to log results (for example: reportWebVitals(console.log))
// or send to an analytics endpoint. Learn more: https://bit.ly/CRA-vitals
reportWebVitals();

修改webpack配置，安装craco：

npm i @craco/craco

根目录新增 craco.config.js，将如下代码放进去：

const { name } = require("./package");

module.exports = {
  webpack: {
    configure: (webpackConfig) => {
      webpackConfig.output.library = `${name}-[name]`;
      webpackConfig.output.libraryTarget = "umd";
      webpackConfig.output.chunkLoadingGlobal = `webpackJsonp_${name}`;
      return webpackConfig;
    },
  },
  devServer: (devServerConfig) => {
    devServerConfig.historyApiFallback = true;
    devServerConfig.open = false;
    devServerConfig.hot = false;
    devServerConfig.watchFiles = [];
    devServerConfig.headers = {
      "Access-Control-Allow-Origin": "*",
    };
    return devServerConfig;
  },
};

修改package.json里面启动的命令，因为安装了craco

 "scripts": {
    "start": "craco start",
    "build": "craco build",
    "test": "craco test",
    "eject": "react-scripts eject"
  },

三、vue3微应用

npm init vue@latest

cd vue-qiankun
npm install
npm run format
npm run dev

安装vite-plugin-qiankun：

npm i vite-plugin-qiankun

https://www.npmjs.com/package/vite-plugin-qiankun
在vite.config.js加入如下配置

import qiankun from 'vite-plugin-qiankun'

// https://vitejs.dev/config/
export default defineConfig({
  // 生产环境需要指定运行域名作为base
  // base: 'http://xxx.com/'
  plugins: [
    vue(),
    qiankun('vue-app', {
      //  'vue-app' 是子应用名，与主应用注册时保持一致
      useDevMode: true // 如果是在主应用中加载子应用vite,必须打开这个,否则vite加载不成功, 单独运行没影响
    })
  ],
  resolve: {
    alias: {
      '@': fileURLToPath(new URL('./src', import.meta.url))
    }
  },
  server: {
    port: '5173',
    cors: true,
    origin: 'http://localhost:5173',  // 子应用引入到主应用之后，子应用中的图片在主应用下加载不出来、找不到，需要将origin设置成子应用本地运行地址
  }
})

在main.js中修改代码，如下：

import './assets/main.css'

import { createApp } from 'vue'
import { createPinia } from 'pinia'

import App from './App.vue'
import routes from './router'

import { renderWithQiankun, qiankunWindow } from 'vite-plugin-qiankun/dist/helper'
import { createRouter, createWebHistory } from 'vue-router'

let router = null
let instance = null
let history = null

function render(props = {}) {
  const { container } = props
  history = createWebHistory(qiankunWindow.__POWERED_BY_QIANKUN__ ? '/vue-app' : '/')
  router = createRouter({
    history,
    routes
  })

  instance = createApp(App)
  instance.use(router)
  instance.use(createPinia())
  instance.mount(container ? container.querySelector('#app') : '#app')
  if (qiankunWindow.__POWERED_BY_QIANKUN__) {
    console.log('我正在作为子应用运行')
  }
}

// some code
renderWithQiankun({
  bootstrap() {
    console.log('bootstrap')
  },
  mount(props) {
    console.log('viteapp mount')
    render(props)
    // console.log(instance.config.globalProperties.$route,333);
  },
  unmount() {
    console.log('vite被卸载了')
    instance.unmount()
    instance._container.innerHTML = ''
    history.destroy() // 不卸载  router 会导致其他应用路由失败
    router = null
    instance = null
  }
})

if (!qiankunWindow.__POWERED_BY_QIANKUN__) {
  render()
}

效果如下：

问题：

1. 应用间的样式隔离：
   在最新的 qiankun 版本中，你也可以尝试通过配置{ sandbox : { experimentalStyleIsolation: true } } 的方式开启运行时的 scoped css 功能，从而解决应用间的样式隔离问题

在主应用的index.js下的start中加入sandbox配置 ，代码如下：

start({ sandbox : { experimentalStyleIsolation: true }});

2. 主应用中切换到子应用对应的页面，子应用空白，控制台也不报错
   元素检查看主应用中是否有子应用的元素，如果有，那可能是样式原因导致的