IndexedDB 错误分类与恢复策略

`title: IndexedDB 错误分类与恢复策略``categories: Web 开发/前端/数据管理``keywords: IndexedDB,错误分类,恢复,事务,配额``description: 分类 IndexedDB 常见错误并设计恢复策略，涵盖事务失败、配额不足与模式不一致等场景，保障持久化稳定性。`捕获与分类function withTx(db, store, mode, fn) { return new Promise((resolve, reject) => { const tx = db.transaction(store, mode); const s = tx.objectStore(store); Promise.resolve(fn(s)).then(() => { tx.oncomplete = () => resolve(); tx.onerror = () => reject(tx.error); tx.onabort = () => reject(tx.error); }); }); } 恢复策略配额不足：清理旧数据或压缩归档；模式不一致：提示刷新或惰性修复；事务失败：重试或降级批量大小。