乐闻世界logo
搜索文章和话题

面试题手册

Module Federation 如何支持多团队协作?有哪些协作最佳实践?

Module Federation 的多团队协作模式需要建立清晰的规范和流程,以下是详细的协作方案:1. 团队组织架构跨团队协作模型:┌─────────────────────────────────────────────┐│ 平台团队 (Platform Team) ││ - Module Federation 基础设施 ││ - 共享依赖管理 ││ - CI/CD 管道 ││ - 代码规范制定 │└──────────────┬──────────────────────────────┘ │ ┌──────────┼──────────┬──────────┐ │ │ │ │┌───▼───┐ ┌───▼───┐ ┌───▼───┐ ┌───▼───┐│订单团队│ │用户团队│ │支付团队│ │商品团队│└───────┘ └───────┘ └───────┘ └───────┘2. 代码规范和约定模块命名规范:// 命名约定:{team}-{module}-{type}// 例如:order-list-component, user-api-service// 模块配置示例new ModuleFederationPlugin({ name: 'order-list-component', filename: 'remoteEntry.js', exposes: { './OrderList': './src/components/OrderList', './OrderListAPI': './src/api/orderList' }, shared: { react: { singleton: true }, 'react-dom': { singleton: true } }})目录结构规范:packages/├── order-list-component/│ ├── src/│ │ ├── components/│ │ │ ├── OrderList.tsx│ │ │ └── OrderItem.tsx│ │ ├── api/│ │ │ └── orderList.ts│ │ ├── hooks/│ │ │ └── useOrderList.ts│ │ ├── types/│ │ │ └── order.ts│ │ └── index.ts│ ├── package.json│ ├── webpack.config.js│ └── README.md├── user-profile-component/│ └── ...└── shared-dependencies/ └── ...3. API 设计规范统一的 API 接口:// types/api.tsexport interface ApiResponse<T> { data: T code: number message: string}export interface PaginationParams { page: number pageSize: number}export interface PaginatedResponse<T> extends ApiResponse<T[]> { total: number page: number pageSize: number}// 订单模块 APIexport interface OrderListParams extends PaginationParams { status?: string startDate?: string endDate?: string}export interface Order { id: string orderNo: string status: string amount: number createdAt: string}export const orderAPI = { getList: (params: OrderListParams): Promise<PaginatedResponse<Order>> => { return request.get('/orders', { params }) }, getDetail: (id: string): Promise<ApiResponse<Order>> => { return request.get(`/orders/${id}`) }}4. 版本管理策略语义化版本控制:{ "name": "order-list-component", "version": "1.2.3", "description": "Order list component with filtering and pagination", "main": "index.js", "peerDependencies": { "react": "^17.0.0", "react-dom": "^17.0.0" }, "dependencies": { "@company/shared-types": "^1.0.0" }}版本兼容性矩阵:// version-matrix.jsconst versionMatrix = { 'order-list-component': { '1.x': { compatibleHost: ['>=1.0.0'], breakingChanges: [] }, '2.0.0': { compatibleHost: ['>=2.0.0'], breakingChanges: [ 'Removed deprecated API methods', 'Changed component props interface' ] } }}export function checkCompatibility(moduleName, moduleVersion, hostVersion) { const moduleInfo = versionMatrix[moduleName] if (!moduleInfo) return true const majorVersion = moduleVersion.split('.')[0] const versionInfo = moduleInfo[`${majorVersion}.x`] || moduleInfo[majorVersion] if (!versionInfo) return false return versionInfo.compatibleHost.some(range => semver.satisfies(hostVersion, range) )}5. 文档规范模块文档模板:# Order List Component## 概述订单列表组件,支持筛选、分页、排序等功能。## 安装\`\`\`bashnpm install @company/order-list-component\`\`\`## 使用方法\`\`\`jsximport OrderList from '@company/order-list-component'function App() { return ( <OrderList status="pending" onOrderClick={(order) => console.log(order)} /> )}\`\`\`## API 文档### Props| 属性 | 类型 | 必填 | 默认值 | 说明 ||------|------|------|--------|------|| status | string | 否 | 'all' | 订单状态筛选 || pageSize | number | 否 | 20 | 每页显示数量 || onOrderClick | function | 否 | - | 订单点击回调 |### Events| 事件名 | 参数 | 说明 ||--------|------|------|| orderClick | order: Order | 订单点击事件 || pageChange | page: number | 页码变化事件 |## 版本历史- 1.2.3 (2024-01-15): 修复分页bug- 1.2.0 (2024-01-10): 新增排序功能- 1.0.0 (2024-01-01): 初始版本## 贡献者- 订单团队: order-team@company.com6. CI/CD 流程自动化构建和部署:# .github/workflows/build-and-deploy.ymlname: Build and Deployon: push: branches: [main, develop] pull_request: branches: [main]jobs: build: runs-on: ubuntu-latest steps: - uses: actions/checkout@v2 - name: Setup Node.js uses: actions/setup-node@v2 with: node-version: '16' - name: Install dependencies run: npm ci - name: Run linter run: npm run lint - name: Run tests run: npm test - name: Build run: npm run build - name: Upload artifacts uses: actions/upload-artifact@v2 with: name: dist path: dist/ deploy: needs: build runs-on: ubuntu-latest if: github.ref == 'refs/heads/main' steps: - name: Download artifacts uses: actions/download-artifact@v2 with: name: dist - name: Deploy to S3 uses: jakejarvis/s3-sync-action@master with: args: --delete env: AWS_S3_BUCKET: ${{ secrets.AWS_S3_BUCKET }} AWS_ACCESS_KEY_ID: ${{ secrets.AWS_ACCESS_KEY_ID }} AWS_SECRET_ACCESS_KEY: ${{ secrets.AWS_SECRET_ACCESS_KEY }} SOURCE_DIR: 'dist'7. 代码审查流程Pull Request 模板:## 变更类型- [ ] 新功能- [ ] Bug 修复- [ ] 性能优化- [ ] 文档更新- [ ] 代码重构## 变更描述简要描述本次变更的内容和目的。## 影响范围- [ ] 仅影响当前模块- [ ] 影响其他模块(请列出)- [ ] 影响主应用## 测试情况- [ ] 单元测试已通过- [ ] 集成测试已通过- [ ] 手动测试已完成## 文档更新- [ ] README 已更新- [ ] API 文档已更新- [ ] 变更日志已更新## 检查清单- [ ] 代码符合团队规范- [ ] 没有引入新的依赖(或已说明原因)- [ ] 版本号已更新(如有破坏性变更)- [ ] 向后兼容性已考虑8. 依赖管理共享依赖管理:// packages/shared-dependencies/package.json{ "name": "@company/shared-dependencies", "version": "1.0.0", "main": "index.js", "dependencies": { "react": "^17.0.2", "react-dom": "^17.0.2", "react-router-dom": "^6.0.0", "styled-components": "^5.3.0", "axios": "^0.27.0" }}// 使用共享依赖new ModuleFederationPlugin({ name: 'order-list-component', shared: { ...require('@company/shared-dependencies') }})9. 沟通机制团队沟通渠道:Slack 频道: #module-federation, #order-team, #user-team定期会议: 每周技术同步会文档中心: Confluence 或 Notion问题追踪: Jira 或 GitHub Issues变更通知机制:// 变更通知服务class ChangeNotificationService { constructor() { this.subscribers = new Map() } subscribe(moduleName, callback) { if (!this.subscribers.has(moduleName)) { this.subscribers.set(moduleName, []) } this.subscribers.get(moduleName).push(callback) } notify(moduleName, change) { const callbacks = this.subscribers.get(moduleName) || [] callbacks.forEach(callback => callback(change)) // 发送通知到 Slack this.sendSlackNotification(moduleName, change) } sendSlackNotification(moduleName, change) { const webhookUrl = process.env.SLACK_WEBHOOK_URL const message = { text: `Module ${moduleName} has been updated`, attachments: [{ color: 'good', fields: [ { title: 'Version', value: change.version, short: true }, { title: 'Type', value: change.type, short: true }, { title: 'Description', value: change.description, short: false } ] }] } fetch(webhookUrl, { method: 'POST', headers: { 'Content-Type': 'application/json' }, body: JSON.stringify(message) }) }}export const changeNotificationService = new ChangeNotificationService()通过以上协作模式,可以建立高效的 Module Federation 多团队协作体系。
阅读 0·2月19日 17:46

Module Federation 如何进行性能优化?有哪些最佳实践?

Module Federation 的性能优化可以从多个维度进行,以下是详细的优化策略:1. 构建产物优化代码分割:// Remote 应用配置new ModuleFederationPlugin({ name: 'remoteApp', filename: 'remoteEntry.js', exposes: { './Button': './src/Button', './Modal': './src/Modal' }, // 细粒度暴露,避免打包不必要的内容 splitChunks: { chunks: 'all', cacheGroups: { vendor: { test: /[\\/]node_modules[\\/]/, name: 'vendors', priority: 10 } } }})Tree Shaking:确保使用 ES Module 语法在 package.json 中设置 "sideEffects": false避免使用 CommonJS 的 require2. 加载性能优化预加载关键模块:// 在应用空闲时预加载const preloadRemoteModule = () => { if ('requestIdleCallback' in window) { requestIdleCallback(() => { import('remoteApp/HeavyComponent') }) }}// 或使用 link 标签预加载const link = document.createElement('link')link.rel = 'preload'link.href = 'http://localhost:3001/remoteEntry.js'link.as = 'script'document.head.appendChild(link)CDN 部署:将 remoteEntry.js 和模块文件部署到 CDN使用 HTTP/2 或 HTTP/3 加速传输配置合理的缓存策略(Cache-Control: max-age=31536000)3. 运行时优化共享依赖优化:shared: { react: { singleton: true, requiredVersion: deps.react, eager: false, // 避免急切加载 strictVersion: false // 允许版本不匹配 }}懒加载策略:// 使用 React.lazy 和 Suspenseconst RemoteComponent = React.lazy(() => import('remoteApp/Component'))// 或使用动态导入const loadModule = async () => { const module = await import('remoteApp/Module') return module.default}4. 缓存策略版本化文件名:// Webpack 配置output: { filename: '[name].[contenthash].js', chunkFilename: '[name].[contenthash].js'}Service Worker 缓存:// 缓存 remoteEntry.jsworkbox.routing.registerRoute( /.*remoteEntry\.js/, new workbox.strategies.NetworkFirst({ cacheName: 'remote-entries', plugins: [ new workbox.expiration.ExpirationPlugin({ maxEntries: 10, maxAgeSeconds: 7 * 24 * 60 * 60 }) ] }))5. 监控和诊断性能监控:// 监控模块加载时间const loadRemoteModule = async (moduleName) => { const startTime = performance.now() try { const module = await import(moduleName) const loadTime = performance.now() - startTime console.log(`${moduleName} loaded in ${loadTime}ms`) return module } catch (error) { console.error(`Failed to load ${moduleName}:`, error) throw error }}6. 最佳实践按需暴露:只暴露必要的模块,避免打包不相关的代码版本控制:使用语义化版本管理,确保兼容性错误边界:为远程模块添加错误边界,避免影响整个应用降级方案:准备本地降级组件,应对远程加载失败渐进式加载:优先加载核心功能,次要功能延迟加载性能指标:首次内容绘制(FCP)< 1.8s最大内容绘制(LCP)< 2.5s累积布局偏移(CLS)< 0.1首次输入延迟(FID)< 100ms通过以上优化策略,可以显著提升 Module Federation 应用的性能表现。
阅读 0·2月19日 17:45

Module Federation 的安全性如何保障?有哪些安全最佳实践?

Module Federation 的安全性是一个重要考虑因素,以下是主要的安全问题和防护措施:1. 跨域资源共享(CORS)安全问题: 远程模块加载涉及跨域请求,可能被恶意利用。解决方案:// 配置严格的 CORS 策略devServer: { headers: { 'Access-Control-Allow-Origin': 'https://trusted-domain.com', 'Access-Control-Allow-Methods': 'GET', 'Access-Control-Allow-Headers': 'Content-Type', 'Access-Control-Max-Age': '86400' }}// 生产环境使用白名单const allowedOrigins = [ 'https://app1.example.com', 'https://app2.example.com']devServer: { setupMiddlewares: (middlewares, devServer) => { devServer.app.use((req, res, next) => { const origin = req.headers.origin if (allowedOrigins.includes(origin)) { res.setHeader('Access-Control-Allow-Origin', origin) } next() }) return middlewares }}2. 内容安全策略(CSP)问题: 动态加载的脚本可能违反 CSP 规则。解决方案:<!-- 配置 CSP 头 --><meta http-equiv="Content-Security-Policy" content="default-src 'self'; script-src 'self' https://trusted-cdn.com 'nonce-randomValue'; style-src 'self' 'unsafe-inline';"><!-- 或在服务器配置 -->Content-Security-Policy: default-src 'self'; script-src 'self' https://cdn.example.com; object-src 'none'3. 远程模块验证问题: 加载的远程模块可能被篡改或包含恶意代码。解决方案:// 使用 Subresource Integrity (SRI)const loadRemoteModule = async (url, integrity) => { const response = await fetch(url) const content = await response.text() // 验证内容完整性 const computedHash = await crypto.subtle.digest( 'SHA-256', new TextEncoder().encode(content) ) const computedIntegrity = 'sha256-' + btoa(String.fromCharCode(...new Uint8Array(computedHash))) if (computedIntegrity !== integrity) { throw new Error('Module integrity check failed') } // 动态执行模块 const blob = new Blob([content], { type: 'application/javascript' }) const moduleUrl = URL.createObjectURL(blob) return import(moduleUrl)}// 使用示例loadRemoteModule( 'https://cdn.example.com/remoteEntry.js', 'sha256-abc123...')4. 依赖安全扫描问题: 共享依赖可能包含已知漏洞。解决方案:# 使用 npm audit 扫描依赖npm audit# 使用 Snyk 进行深度扫描npm install -g snyksnyk test# 在 CI/CD 中集成安全扫描# .github/workflows/security.ymlname: Security Scanon: [push, pull_request]jobs: security: runs-on: ubuntu-latest steps: - uses: actions/checkout@v2 - name: Run npm audit run: npm audit --audit-level=moderate - name: Run Snyk uses: snyk/actions/node@master env: SNYK_TOKEN: ${{ secrets.SNYK_TOKEN }}5. 权限控制问题: 远程模块可能访问不应访问的资源。解决方案:// 使用沙箱隔离远程模块class Sandbox { constructor() { this.context = Object.create(null) } execute(code) { const fn = new Function('context', ` with (context) { return (${code}) } `) return fn(this.context) }}// 限制可访问的全局对象const sandbox = new Sandbox()sandbox.context.console = { log: (...args) => console.log('[Sandbox]', ...args)}// Proxy 拦截访问const secureProxy = new Proxy(target, { get(target, prop) { if (allowedProps.includes(prop)) { return target[prop] } throw new Error(`Access to ${prop} is not allowed`) }})6. HTTPS 和证书验证问题: 中间人攻击可能导致远程模块被篡改。解决方案:// 强制使用 HTTPSconst secureFetch = async (url) => { if (!url.startsWith('https://')) { throw new Error('Only HTTPS URLs are allowed') } const response = await fetch(url, { credentials: 'omit', mode: 'cors' }) if (!response.ok) { throw new Error(`HTTP error! status: ${response.status}`) } return response}// 配置证书固定(Certificate Pinning)// 注意:这需要在原生应用层实现7. 版本锁定和依赖管理问题: 依赖版本漂移可能导致安全漏洞。解决方案:// package-lock.json 确保依赖版本一致性{ "lockfileVersion": 2, "dependencies": { "react": { "version": "17.0.2", "integrity": "sha512-..." } }}// 使用 npm shrinkwrap 锁定依赖npm shrinkwrap// 定期更新依赖并审计npm updatenpm audit fix8. 监控和日志记录问题: 难以追踪远程模块的加载和执行情况。解决方案:// 模块加载监控const moduleLoadTracker = { track(moduleName, url, status, duration) { const event = { timestamp: Date.now(), moduleName, url, status, duration } // 发送到监控系统 if (navigator.sendBeacon) { navigator.sendBeacon('/api/module-tracking', JSON.stringify(event)) } }}// 使用示例const loadWithTracking = async (moduleName, url) => { const startTime = performance.now() try { const module = await import(url) moduleLoadTracker.track(moduleName, url, 'success', performance.now() - startTime) return module } catch (error) { moduleLoadTracker.track(moduleName, url, 'error', performance.now() - startTime) throw error }}最佳实践总结:使用 HTTPS:所有远程模块必须通过 HTTPS 加载实施 CSP:配置严格的内容安全策略验证完整性:使用 SRI 验证远程模块的完整性定期审计:定期扫描依赖漏洞最小权限原则:限制远程模块的访问权限监控日志:记录所有模块加载事件版本锁定:使用 package-lock.json 锁定依赖版本白名单机制:只允许受信任的域名加载远程模块通过以上安全措施,可以有效降低 Module Federation 的安全风险。
阅读 0·2月19日 17:45

Module Federation 如何进行测试?有哪些测试策略?

Module Federation 的测试策略需要考虑模块的独立性和依赖关系,以下是完整的测试方案:1. 单元测试测试远程模块:// Button.test.jsimport { render, screen } from '@testing-library/react'import Button from './Button'describe('Button Component', () => { it('renders button with correct text', () => { render(<Button label="Click me" />) expect(screen.getByText('Click me')).toBeInTheDocument() }) it('calls onClick handler when clicked', () => { const handleClick = jest.fn() render(<Button label="Click me" onClick={handleClick} />) screen.getByText('Click me').click() expect(handleClick).toHaveBeenCalledTimes(1) })})测试共享依赖:// sharedDependency.test.jsimport React from 'react'describe('Shared React Dependency', () => { it('uses singleton instance', () => { const react1 = require('react') const react2 = require('react') expect(react1).toBe(react2) }) it('maintains correct version', () => { const react = require('react') expect(react.version).toMatch(/^17\./) })})2. 集成测试测试模块加载:// moduleLoading.test.jsimport { render, screen, waitFor } from '@testing-library/react'describe('Remote Module Loading', () => { it('loads remote component successfully', async () => { const RemoteComponent = React.lazy(() => import('remoteApp/Button') ) render( <React.Suspense fallback={<div>Loading...</div>}> <RemoteComponent label="Remote Button" /> </React.Suspense> ) await waitFor(() => { expect(screen.getByText('Remote Button')).toBeInTheDocument() }) }) it('handles loading errors gracefully', async () => { const FallbackComponent = () => <div>Fallback</div> const RemoteComponent = React.lazy(() => import('remoteApp/NonExistent') .catch(() => import('./Fallback')) ) render( <React.Suspense fallback={<div>Loading...</div>}> <RemoteComponent /> </React.Suspense> ) await waitFor(() => { expect(screen.getByText('Fallback')).toBeInTheDocument() }) })})测试模块间通信:// interModuleCommunication.test.jsdescribe('Inter-Module Communication', () => { it('shares state between modules', async () => { const { createStore } = await import('remoteApp/store') const store = createStore() store.dispatch({ type: 'SET_VALUE', payload: 'test' }) expect(store.getState().value).toBe('test') }) it('emits events across modules', async () => { const { eventBus } = await import('remoteApp/eventBus') const handler = jest.fn() eventBus.on('test-event', handler) eventBus.emit('test-event', { data: 'test' }) expect(handler).toHaveBeenCalledWith({ data: 'test' }) })})3. 端到端测试使用 Cypress 测试:// cypress/integration/app.spec.jsdescribe('Module Federation E2E', () => { it('loads remote module on page load', () => { cy.visit('/') cy.get('[data-testid="remote-button"]').should('be.visible') cy.get('[data-testid="remote-button"]').should('contain', 'Remote Button') }) it('interacts with remote component', () => { cy.visit('/') cy.get('[data-testid="remote-button"]').click() cy.get('[data-testid="message"]').should('contain', 'Button clicked') }) it('handles module loading failure', () => { cy.intercept('GET', '**/remoteEntry.js', { forceNetworkError: true }) cy.visit('/') cy.get('[data-testid="fallback-message"]').should('be.visible') })})使用 Playwright 测试:// app.spec.tsimport { test, expect } from '@playwright/test'test.describe('Module Federation E2E', () => { test('loads remote module successfully', async ({ page }) => { await page.goto('/') const button = page.locator('[data-testid="remote-button"]') await expect(button).toBeVisible() await expect(button).toHaveText('Remote Button') }) test('handles remote module interactions', async ({ page }) => { await page.goto('/') await page.click('[data-testid="remote-button"]') const message = page.locator('[data-testid="message"]') await expect(message).toContainText('Button clicked') })})4. 性能测试模块加载性能测试:// performance.test.jsdescribe('Module Loading Performance', () => { it('loads remote module within acceptable time', async () => { const startTime = performance.now() await import('remoteApp/Button') const loadTime = performance.now() - startTime expect(loadTime).toBeLessThan(2000) // 2秒内加载完成 }) it('measures bundle size', () => { const stats = require('./webpack-stats.json') const remoteEntrySize = stats.assets.find( asset => asset.name === 'remoteEntry.js' ).size expect(remoteEntrySize).toBeLessThan(100 * 1024) // 小于100KB })})5. Mock 远程模块使用 Jest Mock:// __mocks__/remoteApp/Button.jsexport default function MockButton({ label }) { return <button data-testid="mock-button">{label}</button>}// test filejest.mock('remoteApp/Button')import Button from 'remoteApp/Button'describe('Mocked Remote Module', () => { it('uses mocked component', () => { render(<Button label="Mocked Button" />) expect(screen.getByTestId('mock-button')).toBeInTheDocument() })})使用 MSW 拦截请求:// msw.jsimport { setupServer } from 'msw/node'import { rest } from 'msw'const server = setupServer( rest.get('http://localhost:3001/remoteEntry.js', (req, res, ctx) => { return res( ctx.set('Content-Type', 'application/javascript'), ctx.body(` var remoteApp; (function() { remoteApp = { get: function(module) { return import('./' + module + '.js'); }, init: function(sharedScope) { // initialization logic } }; })(); `) ) }))beforeAll(() => server.listen())afterEach(() => server.resetHandlers())afterAll(() => server.close())6. 测试配置Jest 配置:// jest.config.jsmodule.exports = { preset: 'ts-jest', testEnvironment: 'jsdom', moduleNameMapper: { '\\.(css|less|scss|sass)$': 'identity-obj-proxy', '^@/(.*)$': '<rootDir>/src/$1', '^remoteApp/(.*)$': '<rootDir>/__mocks__/remoteApp/$1' }, transform: { '^.+\\.(ts|tsx|js|jsx)$': 'ts-jest' }, setupFilesAfterEnv: ['<rootDir>/jest.setup.js']}Cypress 配置:// cypress.config.jsconst { defineConfig } = require('cypress')module.exports = defineConfig({ e2e: { baseUrl: 'http://localhost:3000', supportFile: 'cypress/support/e2e.js', specPattern: 'cypress/integration/**/*.cy.{js,jsx,ts,tsx}', viewportWidth: 1280, viewportHeight: 720 }})7. 测试最佳实践隔离测试:每个测试独立运行,不依赖其他测试Mock 外部依赖:使用 Mock 隔离外部依赖覆盖边界情况:测试成功、失败、超时等场景性能基准:设定性能基准,监控性能退化持续集成:在 CI/CD 中集成测试测试覆盖率:保持高测试覆盖率(>80%)文档化:为复杂测试添加注释和文档通过以上测试策略,可以确保 Module Federation 应用的质量和稳定性。
阅读 0·2月19日 17:45

Module Federation 的未来发展趋势是什么?有哪些技术演进方向?

Module Federation 的未来发展趋势和生态系统正在快速演进,以下是详细的分析和展望:1. 技术发展趋势跨构建工具支持:// Vite + Module Federation// vite.config.jsimport federation from '@originjs/vite-plugin-federation'export default { plugins: [ federation({ name: 'vite-app', filename: 'remoteEntry.js', exposes: { './Button': './src/Button' }, shared: ['react', 'react-dom'] }) ]}// Rollup + Module Federation// rollup.config.jsimport federation from '@module-federation/rollup-plugin'export default { plugins: [ federation({ name: 'rollup-app', filename: 'remoteEntry.js', exposes: { './Button': './src/Button' }, shared: ['react', 'react-dom'] }) ]}// esbuild + Module Federation// esbuild.config.jsimport { federationPlugin } from '@module-federation/esbuild-plugin'export default { plugins: [ federationPlugin({ name: 'esbuild-app', filename: 'remoteEntry.js', exposes: { './Button': './src/Button' }, shared: ['react', 'react-dom'] }) ]}2. 性能优化方向智能预加载:// AI 驱动的预加载策略class IntelligentPreloader { constructor() { this.userBehavior = new Map() this.loadPredictions = new Map() } trackUserBehavior(event) { // 跟踪用户行为 const timestamp = Date.now() const key = `${event.type}_${event.target}` if (!this.userBehavior.has(key)) { this.userBehavior.set(key, []) } this.userBehavior.get(key).push(timestamp) // 预测用户下一步操作 this.predictNextAction(event) } predictNextAction(event) { // 使用简单的机器学习模型预测 const patterns = this.analyzePatterns() const prediction = this.makePrediction(patterns, event) if (prediction.confidence > 0.7) { this.preloadModule(prediction.module) } } analyzePatterns() { const patterns = [] this.userBehavior.forEach((timestamps, key) => { if (timestamps.length > 1) { const avgInterval = this.calculateAverageInterval(timestamps) patterns.push({ key, avgInterval, frequency: timestamps.length }) } }) return patterns.sort((a, b) => b.frequency - a.frequency) } calculateAverageInterval(timestamps) { let total = 0 for (let i = 1; i < timestamps.length; i++) { total += timestamps[i] - timestamps[i - 1] } return total / (timestamps.length - 1) } makePrediction(patterns, currentEvent) { // 简化的预测逻辑 const likelyNext = patterns.find(p => p.key.startsWith(currentEvent.type) && p.frequency > 3 ) if (likelyNext) { return { module: this.mapEventToModule(likelyNext.key), confidence: Math.min(likelyNext.frequency / 10, 0.9) } } return { module: null, confidence: 0 } } mapEventToModule(eventKey) { const moduleMap = { 'click_dashboard': 'dashboardModule/Dashboard', 'click_orders': 'orderModule/OrderList', 'click_users': 'userModule/UserProfile' } return moduleMap[eventKey] || null } async preloadModule(moduleName) { if (!moduleName || this.loadPredictions.has(moduleName)) return try { await import(moduleName) this.loadPredictions.set(moduleName, true) console.log(`✅ Preloaded module: ${moduleName}`) } catch (error) { console.error(`❌ Failed to preload module: ${moduleName}`, error) } }}export const intelligentPreloader = new IntelligentPreloader()边缘计算集成:// 边缘节点模块分发class EdgeModuleDistributor { constructor() { this.edgeNodes = new Map() this.moduleCache = new Map() } async registerEdgeNode(nodeId, location) { // 注册边缘节点 this.edgeNodes.set(nodeId, { location, modules: new Map(), lastSync: Date.now() }) console.log(`✅ Edge node registered: ${nodeId} at ${location}`) } async distributeModule(moduleName, moduleData) { // 分发模块到边缘节点 const distributionPromises = [] for (const [nodeId, node] of this.edgeNodes) { distributionPromises.push( this.deployToEdgeNode(nodeId, moduleName, moduleData) ) } await Promise.allSettled(distributionPromises) console.log(`✅ Module distributed to edge nodes: ${moduleName}`) } async deployToEdgeNode(nodeId, moduleName, moduleData) { // 部署到边缘节点 const node = this.edgeNodes.get(nodeId) try { const response = await fetch(`${node.location}/deploy`, { method: 'POST', headers: { 'Content-Type': 'application/json' }, body: JSON.stringify({ moduleName, moduleData }) }) if (response.ok) { node.modules.set(moduleName, { deployedAt: Date.now(), status: 'active' }) } } catch (error) { console.error(`Failed to deploy to edge node ${nodeId}:`, error) } } async loadFromNearestEdge(moduleName) { // 从最近的边缘节点加载模块 const nearestNode = this.findNearestEdgeNode() if (nearestNode && nearestNode.modules.has(moduleName)) { try { const response = await fetch( `${nearestNode.location}/modules/${moduleName}` ) const moduleData = await response.json() // 动态加载模块 const blob = new Blob([moduleData.code], { type: 'application/javascript' }) const moduleUrl = URL.createObjectURL(blob) const module = await import(moduleUrl) console.log(`✅ Loaded module from edge: ${moduleName}`) return module } catch (error) { console.error(`Failed to load from edge node:`, error) } } // 回退到 CDN return this.loadFromCDN(moduleName) } findNearestEdgeNode() { // 简化的最近节点查找 return Array.from(this.edgeNodes.values())[0] } async loadFromCDN(moduleName) { // 从 CDN 加载模块 return import(moduleName) }}export const edgeModuleDistributor = new EdgeModuleDistributor()3. 生态系统扩展模块市场:// Module Marketplaceclass ModuleMarketplace { constructor() { this.modules = new Map() this.categories = new Map() this.ratings = new Map() } async publishModule(moduleData) { // 发布模块到市场 const moduleId = this.generateModuleId(moduleData) const module = { id: moduleId, name: moduleData.name, version: moduleData.version, description: moduleData.description, author: moduleData.author, category: moduleData.category, remoteEntry: moduleData.remoteEntry, publishedAt: Date.now(), downloads: 0, rating: 0 } this.modules.set(moduleId, module) // 更新分类 this.updateCategory(moduleData.category, moduleId) console.log(`✅ Module published: ${module.name}`) return module } async searchModules(query, filters = {}) { // 搜索模块 let results = Array.from(this.modules.values()) // 关键词搜索 if (query) { const lowerQuery = query.toLowerCase() results = results.filter(module => module.name.toLowerCase().includes(lowerQuery) || module.description.toLowerCase().includes(lowerQuery) ) } // 分类过滤 if (filters.category) { results = results.filter(module => module.category === filters.category ) } // 评分过滤 if (filters.minRating) { results = results.filter(module => module.rating >= filters.minRating ) } return results } async installModule(moduleId) { // 安装模块 const module = this.modules.get(moduleId) if (!module) { throw new Error(`Module not found: ${moduleId}`) } try { // 动态加载远程模块 const remoteModule = await import(module.remoteEntry) // 增加下载计数 module.downloads++ console.log(`✅ Module installed: ${module.name}`) return remoteModule } catch (error) { console.error(`Failed to install module:`, error) throw error } } async rateModule(moduleId, rating, review) { // 评价模块 const module = this.modules.get(moduleId) if (!module) { throw new Error(`Module not found: ${moduleId}`) } const ratingData = { userId: this.getCurrentUserId(), rating, review, timestamp: Date.now() } if (!this.ratings.has(moduleId)) { this.ratings.set(moduleId, []) } this.ratings.get(moduleId).push(ratingData) // 更新平均评分 const ratings = this.ratings.get(moduleId) module.rating = ratings.reduce((sum, r) => sum + r.rating, 0) / ratings.length console.log(`✅ Module rated: ${module.name} (${rating}/5)`) return module } generateModuleId(moduleData) { return `${moduleData.name}-${moduleData.version}-${Date.now()}` } updateCategory(category, moduleId) { if (!this.categories.has(category)) { this.categories.set(category, new Set()) } this.categories.get(category).add(moduleId) } getCurrentUserId() { // 获取当前用户 ID return 'user-' + Math.random().toString(36).substr(2, 9) }}export const moduleMarketplace = new ModuleMarketplace()4. 安全性增强区块链验证:// Blockchain-based Module Verificationclass BlockchainVerifier { constructor() { this.blockchain = new Map() this.currentBlock = 0 } async registerModule(moduleData) { // 在区块链上注册模块 const block = { index: this.currentBlock++, timestamp: Date.now(), moduleHash: this.calculateHash(moduleData), moduleData: moduleData, previousHash: this.getPreviousHash() } block.hash = this.calculateBlockHash(block) this.blockchain.set(block.index, block) console.log(`✅ Module registered on blockchain: ${moduleData.name}`) return block } async verifyModule(moduleName, moduleData) { // 验证模块完整性 const block = this.findModuleBlock(moduleName) if (!block) { throw new Error(`Module not found on blockchain: ${moduleName}`) } const currentHash = this.calculateHash(moduleData) if (currentHash !== block.moduleHash) { throw new Error(`Module integrity verification failed: ${moduleName}`) } // 验证区块链完整性 const isValid = this.verifyBlockchain() if (!isValid) { throw new Error('Blockchain verification failed') } console.log(`✅ Module verified: ${moduleName}`) return true } calculateHash(data) { // 计算数据哈希 const crypto = require('crypto') return crypto .createHash('sha256') .update(JSON.stringify(data)) .digest('hex') } calculateBlockHash(block) { const crypto = require('crypto') return crypto .createHash('sha256') .update( block.index + block.previousHash + block.timestamp + block.moduleHash ) .digest('hex') } getPreviousHash() { if (this.currentBlock === 0) { return '0' } return this.blockchain.get(this.currentBlock - 1).hash } findModuleBlock(moduleName) { for (const block of this.blockchain.values()) { if (block.moduleData.name === moduleName) { return block } } return null } verifyBlockchain() { // 验证区块链完整性 for (let i = 1; i < this.currentBlock; i++) { const currentBlock = this.blockchain.get(i) const previousBlock = this.blockchain.get(i - 1) if (currentBlock.previousHash !== previousBlock.hash) { return false } const calculatedHash = this.calculateBlockHash(currentBlock) if (calculatedHash !== currentBlock.hash) { return false } } return true }}export const blockchainVerifier = new BlockchainVerifier()5. 开发者工具可视化调试器:// Visual Module Federation Debuggerclass VisualDebugger { constructor() { this.moduleGraph = new Map() this.loadTimes = new Map() this.dependencies = new Map() } visualizeModuleGraph() { // 可视化模块依赖图 const graphData = this.buildGraphData() return { nodes: graphData.nodes, edges: graphData.edges, layout: this.calculateLayout(graphData) } } buildGraphData() { const nodes = [] const edges = [] this.moduleGraph.forEach((module, id) => { nodes.push({ id, label: module.name, type: module.type, status: module.status }) module.dependencies.forEach(depId => { edges.push({ source: id, target: depId, type: 'dependency' }) }) }) return { nodes, edges } } calculateLayout(graphData) { // 简化的布局计算 const positions = new Map() graphData.nodes.forEach((node, index) => { positions.set(node.id, { x: (index % 5) * 200, y: Math.floor(index / 5) * 150 }) }) return positions } generatePerformanceReport() { // 生成性能报告 const report = { totalModules: this.moduleGraph.size, averageLoadTime: this.calculateAverageLoadTime(), slowModules: this.identifySlowModules(), dependencyChains: this.analyzeDependencyChains(), recommendations: this.generateRecommendations() } return report } calculateAverageLoadTime() { const times = Array.from(this.loadTimes.values()) return times.reduce((sum, time) => sum + time, 0) / times.length } identifySlowModules() { const threshold = 1000 // 1秒 const slowModules = [] this.loadTimes.forEach((time, moduleId) => { if (time > threshold) { slowModules.push({ moduleId, loadTime: time, module: this.moduleGraph.get(moduleId) }) } }) return slowModules.sort((a, b) => b.loadTime - a.loadTime) } analyzeDependencyChains() { // 分析依赖链 const chains = [] this.moduleGraph.forEach((module, id) => { if (module.dependencies.length > 0) { chains.push({ root: id, depth: this.calculateDepth(id), branches: module.dependencies.length }) } }) return chains } calculateDepth(moduleId) { const module = this.moduleGraph.get(moduleId) if (!module || module.dependencies.length === 0) { return 0 } return 1 + Math.max( ...module.dependencies.map(dep => this.calculateDepth(dep)) ) } generateRecommendations() { const recommendations = [] // 基于慢模块生成建议 const slowModules = this.identifySlowModules() if (slowModules.length > 0) { recommendations.push({ type: 'performance', priority: 'high', message: `${slowModules.length} modules load slowly. Consider code splitting or lazy loading.` }) } // 基于依赖链生成建议 const deepChains = this.analyzeDependencyChains().filter(c => c.depth > 5) if (deepChains.length > 0) { recommendations.push({ type: 'architecture', priority: 'medium', message: `${deepChains.length} modules have deep dependency chains. Consider flattening dependencies.` }) } return recommendations }}export const visualDebugger = new VisualDebugger()通过以上技术趋势和生态系统的分析,可以看出 Module Federation 的未来发展将更加注重性能、安全性和开发者体验。
阅读 0·2月19日 17:45

Garfish 的样式隔离机制是如何实现的,有哪些常见的样式隔离方案?

Garfish 的样式隔离机制确保不同子应用的样式不会相互干扰,是微前端架构中的重要组成部分。样式隔离方案1. CSS 作用域原理:为每个子应用的样式添加唯一前缀或后缀实现方式:使用 PostCSS 插件自动添加作用域通过 CSS Modules 实现局部作用域使用 CSS-in-JS 方案(如 styled-components)优势:简单易用,兼容性好劣势:需要额外的构建配置示例:// PostCSS 配置module.exports = { plugins: [ require('postcss-selector-prefix')({ prefix: '[data-garfish-app="app1"]' }) ]};2. Shadow DOM原理:使用浏览器原生的 Shadow DOM 技术隔离样式实现方式:将子应用挂载到 Shadow DOM 容器中样式只在 Shadow DOM 内部生效自动隔离全局样式优势:完全隔离,浏览器原生支持劣势:部分浏览器兼容性问题,事件冒泡处理复杂示例:// 创建 Shadow DOM 容器const shadowRoot = container.attachShadow({ mode: 'open' });// 将子应用挂载到 Shadow DOMshadowRoot.appendChild(appElement);3. 动态样式表管理原理:在子应用挂载时加载样式,卸载时移除样式实现方式:动态创建和删除 <style> 标签管理样式表的加载和卸载避免样式残留优势:灵活控制,性能较好劣势:需要手动管理样式生命周期示例:// 动态加载样式function loadStylesheet(url) { const link = document.createElement('link'); link.rel = 'stylesheet'; link.href = url; document.head.appendChild(link); return link;}// 卸载时移除样式function unloadStylesheet(link) { document.head.removeChild(link);}4. CSS 命名约定原理:通过命名规范避免样式冲突实现方式:使用 BEM 命名规范为每个子应用设置唯一的类名前缀遵循统一的命名约定优势:无需额外工具,易于理解劣势:依赖开发者自觉,容易出错示例:/* 子应用 app1 的样式 */.app1__header { }.app1__button { }.app1__button--primary { }样式隔离配置Garfish 配置示例Garfish.run({ apps: [ { name: 'app1', entry: '//localhost:3001', sandbox: { strictIsolation: true, styleIsolation: 'shadow-dom' // 或 'scoped-css' } } ]});最佳实践1. 选择合适的隔离方案简单项目:CSS 作用域或命名约定复杂项目:Shadow DOM混合场景:结合多种方案2. 全局样式处理主应用提供全局基础样式子应用避免使用全局选择器使用 CSS 变量管理主题3. 第三方库样式使用作用域化版本手动修改第三方库样式考虑使用样式隔离方案4. 性能优化避免重复加载样式使用样式压缩合理使用 CSS 缓存5. 开发体验提供样式隔离的调试工具支持热更新提供样式冲突检测常见问题解决1. 样式不生效检查样式隔离配置确认样式加载顺序检查选择器优先级2. 样式冲突使用更具体的选择器调整样式隔离方案检查全局样式影响3. 性能问题减少样式文件大小优化样式加载策略使用样式缓存通过合理配置样式隔离机制,可以确保微前端应用的样式独立性和可维护性。
阅读 0·2月19日 17:45

Module Federation 如何与 React、Vue、Angular 等框架配合使用?

Module Federation 可以与多种前端框架配合使用,以下是各框架的具体实现方案:1. React + Module Federation基础配置:// webpack.config.jsconst { ModuleFederationPlugin } = require('webpack').containermodule.exports = { // ...其他配置 plugins: [ new ModuleFederationPlugin({ name: 'reactApp', filename: 'remoteEntry.js', exposes: { './Button': './src/Button', './Header': './src/Header' }, shared: { react: { singleton: true, eager: true }, 'react-dom': { singleton: true, eager: true } } }) ]}使用远程组件:import React, { Suspense } from 'react'const RemoteButton = React.lazy(() => import('remoteApp/Button'))function App() { return ( <Suspense fallback={<div>Loading...</div>}> <RemoteButton label="Click me" /> </Suspense> )}2. Vue 3 + Module Federation基础配置:// vue.config.jsconst { defineConfig } = require('@vue/cli-service')const ModuleFederationPlugin = require('webpack').container.ModuleFederationPluginmodule.exports = defineConfig({ configureWebpack: { plugins: [ new ModuleFederationPlugin({ name: 'vueApp', filename: 'remoteEntry.js', exposes: { './Button': './src/components/Button.vue' }, shared: { vue: { singleton: true, eager: true } } }) ] }})使用远程组件:<template> <div> <Suspense> <template #default> <RemoteButton :text="buttonText" /> </template> <template #fallback> <div>Loading...</div> </template> </Suspense> </div></template><script>import { defineAsyncComponent } from 'vue'export default { components: { RemoteButton: defineAsyncComponent(() => import('remoteApp/Button') ) }, data() { return { buttonText: 'Click me' } }}</script>3. Angular + Module Federation基础配置:// webpack.config.jsconst ModuleFederationPlugin = require('webpack').container.ModuleFederationPluginmodule.exports = { plugins: [ new ModuleFederationPlugin({ name: 'angularApp', filename: 'remoteEntry.js', exposes: { './ButtonComponent': './src/app/button/button.component.ts' }, shared: { '@angular/core': { singleton: true }, '@angular/common': { singleton: true } } }) ]}使用远程组件:import { Component, NgModule } from '@angular/core'import { BrowserModule } from '@angular/platform-browser'@Component({ selector: 'app-root', template: ` <ng-container *ngIf="remoteButton"> <ng-container *ngComponentOutlet="remoteButton"></ng-container> </ng-container> `})export class AppComponent { remoteButton: any async ngOnInit() { const module = await import('remoteApp/ButtonComponent') this.remoteButton = module.ButtonComponent }}4. Svelte + Module Federation基础配置:// rollup.config.jsimport moduleFederation from '@module-federation/rollup-plugin'export default { plugins: [ moduleFederation({ name: 'svelteApp', filename: 'remoteEntry.js', exposes: { './Button': './src/Button.svelte' }, shared: { svelte: { singleton: true } } }) ]}使用远程组件:<script> import { onMount } from 'svelte' let RemoteButton onMount(async () => { const module = await import('remoteApp/Button') RemoteButton = module.default })</script>{#if RemoteButton} <svelte:component this={RemoteButton} text="Click me" />{/if}5. 框架间互操作React 使用 Vue 组件:import React from 'react'const VueComponentWrapper = React.lazy(() => import('vueApp/Button'))function ReactApp() { return ( <Suspense fallback={<div>Loading Vue component...</div>}> <VueComponentWrapper /> </Suspense> )}Vue 使用 React 组件:<template> <div> <ReactComponentWrapper /> </div></template><script>import { defineAsyncComponent, onMounted } from 'vue'export default { components: { ReactComponentWrapper: defineAsyncComponent(() => import('reactApp/Button') ) }}</script>最佳实践:统一依赖版本:确保所有应用使用相同版本的共享依赖类型安全:使用 TypeScript 或类型声明文件确保类型安全错误处理:为远程组件添加错误边界和降级方案性能优化:使用懒加载和代码分割优化性能样式隔离:使用 CSS Modules 或 CSS-in-JS 避免样式冲突通过以上配置,Module Federation 可以与各种前端框架无缝集成,实现跨框架的模块共享。
阅读 0·2月19日 17:45

Module Federation 和 qiankun、single-spa 有什么区别?

Module Federation 和传统的微前端方案(如 qiankun、single-spa)有以下主要区别:1. 构建时机不同Module Federation:在构建时生成独立的构建产物,运行时动态加载qiankun/single-spa:需要构建完整的子应用,主应用通过 JS/CSS 加载子应用2. 依赖共享机制Module Federation:原生支持依赖共享,通过 shared 配置自动管理版本冲突qiankun:需要手动配置 importMap 或使用沙箱隔离依赖single-spa:依赖 SystemJS 模块加载器,需要额外配置依赖管理3. 代码隔离方式Module Federation:通过 Webpack 的模块系统实现隔离,共享依赖时使用单例模式qiankun:使用 JS 沙箱(快照沙箱或代理沙箱)隔离全局变量single-spa:依赖 SystemJS 的模块隔离机制4. 开发体验Module Federation:配置相对简单,与 Webpack 深度集成,支持 HMRqiankun:需要适配子应用生命周期,配置相对复杂single-spa:学习曲线较陡,需要理解 SystemJS 和生命周期5. 性能对比Module Federation:按需加载模块,共享依赖减少重复代码,性能更优qiankun:需要加载完整的子应用,可能存在代码重复single-spa:通过 SystemJS 加载模块,有一定的运行时开销6. 技术栈限制Module Federation:主要支持 Webpack 5,对其他构建工具支持有限qiankun:不限制技术栈,支持 Vue、React、Angular 等多种框架single-spa:框架无关,支持任意前端技术栈7. 适用场景Module Federation:适合同技术栈、需要细粒度模块共享的场景qiankun:适合异构技术栈、需要完整应用隔离的场景single-spa:适合需要高度定制化微前端架构的场景
阅读 0·2月19日 17:44

Module Federation 在大型企业级应用中的架构设计如何实现?

Module Federation 在大型企业级应用中的架构设计需要考虑多个方面,以下是详细的架构方案:1. 多层级架构设计三层架构模式:┌─────────────────────────────────────────┐│ 主应用层 (Host Layer) ││ - 路由管理 ││ - 全局状态管理 ││ - 用户认证授权 │└──────────────┬──────────────────────────┘ │┌──────────────▼──────────────────────────┐│ 业务模块层 (Business Layer) ││ - 订单模块 (Order Module) ││ - 用户模块 (User Module) ││ - 支付模块 (Payment Module) │└──────────────┬──────────────────────────┘ │┌──────────────▼──────────────────────────┐│ 基础组件层 (Component Layer) ││ - UI 组件库 ││ - 工具函数库 ││ - 业务组件 │└─────────────────────────────────────────┘2. 模块划分策略按业务域划分:// 订单模块new ModuleFederationPlugin({ name: 'orderModule', filename: 'remoteEntry.js', exposes: { './OrderList': './src/OrderList', './OrderDetail': './src/OrderDetail', './OrderCreate': './src/OrderCreate', './OrderAPI': './src/api/order' }, shared: { react: { singleton: true }, 'react-dom': { singleton: true }, '@company/ui-components': { singleton: true }, '@company/utils': { singleton: true } }})// 用户模块new ModuleFederationPlugin({ name: 'userModule', filename: 'remoteEntry.js', exposes: { './UserProfile': './src/UserProfile', './UserSettings': './src/UserSettings', './UserAPI': './src/api/user' }, shared: { react: { singleton: true }, 'react-dom': { singleton: true }, '@company/ui-components': { singleton: true } }})按功能层次划分:// 基础组件库new ModuleFederationPlugin({ name: 'componentLibrary', filename: 'remoteEntry.js', exposes: { './Button': './src/components/Button', './Modal': './src/components/Modal', './Table': './src/components/Table', './Form': './src/components/Form' }, shared: { react: { singleton: true }, 'react-dom': { singleton: true }, 'styled-components': { singleton: true } }})// 工具库new ModuleFederationPlugin({ name: 'utilityLibrary', filename: 'remoteEntry.js', exposes: { './request': './src/utils/request', './storage': './src/utils/storage', './validation': './src/utils/validation', './format': './src/utils/format' }, shared: {}})3. 状态管理架构集中式状态管理:// 主应用状态管理import { createStore } from 'redux'import { Provider } from 'react-redux'const rootReducer = combineReducers({ auth: authReducer, theme: themeReducer, // 远程模块的 reducer 会在运行时注册 modules: (state = {}, action) => { // 动态注册的模块 reducer return moduleReducers.reduce((acc, reducer) => { return reducer(acc, action) }, state) }})const store = createStore(rootReducer)// 远程模块注册 reducerexport const registerModuleReducer = (name, reducer) => { moduleReducers.push(reducer) store.replaceReducer(createRootReducer())}分布式状态管理:// 使用事件总线实现跨模块通信class EventBus { constructor() { this.events = {} } on(event, callback) { if (!this.events[event]) { this.events[event] = [] } this.events[event].push(callback) } emit(event, data) { if (this.events[event]) { this.events[event].forEach(callback => callback(data)) } } off(event, callback) { if (this.events[event]) { this.events[event] = this.events[event].filter(cb => cb !== callback) } }}export const eventBus = new EventBus()// 远程模块使用事件总线import { eventBus } from '@company/event-bus'// 发布事件eventBus.emit('order:created', { orderId: 123 })// 订阅事件eventBus.on('order:created', (data) => { console.log('Order created:', data)})4. 路由架构设计主应用路由配置:import { BrowserRouter, Routes, Route } from 'react-router-dom'const routes = [ { path: '/orders', component: React.lazy(() => import('orderModule/OrderList')) }, { path: '/orders/:id', component: React.lazy(() => import('orderModule/OrderDetail')) }, { path: '/users', component: React.lazy(() => import('userModule/UserProfile')) }, { path: '/settings', component: React.lazy(() => import('userModule/UserSettings')) }]function App() { return ( <BrowserRouter> <Suspense fallback={<Loading />}> <Routes> {routes.map((route, index) => ( <Route key={index} path={route.path} element={<route.component />} /> ))} </Routes> </Suspense> </BrowserRouter> )}动态路由加载:// 路由配置文件const routeConfig = { '/orders': { module: 'orderModule', component: 'OrderList', permissions: ['orders:read'] }, '/orders/create': { module: 'orderModule', component: 'OrderCreate', permissions: ['orders:create'] }}// 动态路由加载器const loadRoute = async (path) => { const config = routeConfig[path] if (!config) return null const { module, component } = config const Component = await import(`${module}/${component}`) return Component.default}5. 依赖管理策略统一依赖版本:// 根目录 package.json{ "name": "monorepo", "private": true, "workspaces": [ "packages/*" ], "scripts": { "sync-deps": "sync-dependencies" }, "devDependencies": { "sync-dependencies": "^1.0.0" }}依赖同步脚本:// scripts/sync-dependencies.jsconst fs = require('fs')const path = require('path')const sharedDependencies = { react: '^17.0.2', 'react-dom': '^17.0.2', 'react-router-dom': '^6.0.0', 'styled-components': '^5.3.0'}const packagesDir = path.join(__dirname, '../packages')fs.readdirSync(packagesDir).forEach(pkgName => { const pkgPath = path.join(packagesDir, pkgName, 'package.json') if (fs.existsSync(pkgPath)) { const pkg = require(pkgPath) pkg.dependencies = { ...pkg.dependencies, ...sharedDependencies } fs.writeFileSync(pkgPath, JSON.stringify(pkg, null, 2)) }})6. 性能优化架构预加载策略:// 智能预加载器class PreloadManager { constructor() { this.preloadedModules = new Set() this.preloadQueue = [] } preload(moduleName) { if (this.preloadedModules.has(moduleName)) return this.preloadQueue.push(moduleName) this.processQueue() } async processQueue() { if (this.isProcessing) return this.isProcessing = true while (this.preloadQueue.length > 0) { const moduleName = this.preloadQueue.shift() try { await import(moduleName) this.preloadedModules.add(moduleName) } catch (error) { console.error(`Failed to preload ${moduleName}:`, error) } } this.isProcessing = false }}export const preloadManager = new PreloadManager()// 使用示例preloadManager.preload('orderModule/OrderList')缓存策略:// Service Worker 缓存配置const CACHE_NAME = 'module-federation-v1'const CACHE_URLS = [ '/remoteEntry.js', '/main.js', '/vendor.js']self.addEventListener('install', (event) => { event.waitUntil( caches.open(CACHE_NAME).then((cache) => { return cache.addAll(CACHE_URLS) }) )})self.addEventListener('fetch', (event) => { event.respondWith( caches.match(event.request).then((response) => { return response || fetch(event.request) }) )})7. 监控和日志架构模块加载监控:// 模块加载追踪器class ModuleTracker { constructor() { this.loadTimes = new Map() this.errorCounts = new Map() } track(moduleName, status, duration) { const key = `${moduleName}_${status}` const count = this.errorCounts.get(key) || 0 this.errorCounts.set(key, count + 1) if (status === 'success') { this.loadTimes.set(moduleName, duration) } // 发送到监控系统 this.sendToMonitoring({ module: moduleName, status, duration, timestamp: Date.now() }) } sendToMonitoring(data) { // 发送到后端监控系统 fetch('/api/monitoring/modules', { method: 'POST', headers: { 'Content-Type': 'application/json' }, body: JSON.stringify(data) }).catch(console.error) }}export const moduleTracker = new ModuleTracker()8. 灾难恢复架构降级策略:// 模块降级管理器class FallbackManager { constructor() { this.fallbacks = new Map() } register(moduleName, fallbackComponent) { this.fallbacks.set(moduleName, fallbackComponent) } async loadWithFallback(moduleName) { try { const module = await import(moduleName) return module.default } catch (error) { console.error(`Failed to load ${moduleName}, using fallback`) const fallback = this.fallbacks.get(moduleName) if (fallback) { return fallback } throw error } }}export const fallbackManager = new FallbackManager()// 注册降级组件fallbackManager.register('orderModule/OrderList', LocalOrderList)通过以上架构设计,可以构建一个可扩展、高性能、易维护的企业级 Module Federation 应用。
阅读 0·2月19日 17:42