71 lines
1.8 KiB
JavaScript
71 lines
1.8 KiB
JavaScript
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// Service Worker for PWA
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const CACHE_NAME = 'qingyuan-erp-v1';
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const STATIC_ASSETS = [
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'/',
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'/index.html',
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'/manifest.json',
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'/logo.png'
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];
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// 安装时缓存静态资源
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self.addEventListener('install', (event) => {
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event.waitUntil(
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caches.open(CACHE_NAME).then((cache) => {
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return cache.addAll(STATIC_ASSETS);
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}).catch((err) => {
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console.log('Cache failed:', err);
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})
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);
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self.skipWaiting();
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});
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// 激活时清理旧缓存
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self.addEventListener('activate', (event) => {
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event.waitUntil(
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caches.keys().then((cacheNames) => {
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return Promise.all(
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cacheNames
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.filter((name) => name !== CACHE_NAME)
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.map((name) => caches.delete(name))
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);
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})
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);
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self.clients.claim();
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});
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// 拦截请求，优先使用缓存
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self.addEventListener('fetch', (event) => {
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// 跳过非GET请求和API请求
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if (event.request.method !== 'GET' ||
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event.request.url.includes('/api/') ||
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event.request.url.includes('chrome-extension')) {
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return;
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}
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event.respondWith(
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caches.match(event.request).then((response) => {
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// 如果缓存中有，返回缓存
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if (response) {
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return response;
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}
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// 否则发起网络请求
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return fetch(event.request).then((networkResponse) => {
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// 缓存新请求
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if (networkResponse.status === 200) {
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const responseToCache = networkResponse.clone();
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caches.open(CACHE_NAME).then((cache) => {
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cache.put(event.request, responseToCache);
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});
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}
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return networkResponse;
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}).catch(() => {
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// 网络失败时返回离线页面
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if (event.request.mode === 'navigate') {
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return caches.match('/index.html');
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}
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});
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})
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);
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});
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