"Next.js 15 Navigation Transitions 与数据预取协同实践"

Next.js 15 Navigation Transitions 与数据预取协同实践概述通过导航过渡与数据预取减少感知延迟，结合 PPR/RSC 让页面快速可交互，提升整体体验与 SEO 友好性。Link 预取与路由预取import Link from 'next/link' export function Nav() { return ( <nav> <Link href="/products" prefetch>产品</Link> <Link href="/blog" prefetch>博客</Link> </nav> ) } // 手动预取 import { useRouter } from 'next/navigation' export function PrefetchButton() { const router = useRouter() return <button onClick={() => router.prefetch('/products')}>预取产品</button> } Speculation Rules（预取策略）<script type="speculationrules"> { "prerender": [ { "source": "list", "where": { "href_matches": "/products.*" } }, { "source": "document", "where": { "selector": "a[href^='/blog']" } } ], "prefetch": [ { "source": "list", "where": { "href_matches": "/blog.*" } } ] } </script> Navigation 过渡（React useTransition）import { useTransition } from 'react' import { useRouter } from 'next/navigation' export function SmoothNav({ to }: { to: string }) { const router = useRouter() const [pending, startTransition] = useTransition() return ( <button disabled={pending} onClick={() => startTransition(() => router.push(to))}> {pending ? '跳转中…' : '跳转'} </button> ) } PPR 与 RSC 协同export const dynamic = 'force-static' export const revalidate = 600 export default async function Page() { const data = await fetch('https://api.example.com/list', { cache: 'force-cache' }).then(r => r.json()) return <ul>{data.map((x: any) => <li key={x.id}>{x.title}</li>)}</ul> } 技术参数与验证浏览器：Chrome 120+；Speculation Rules 启用导航过渡等待 < 200ms；首屏 PPR 命中率 > 85%应用场景列表/详情架构、门户导航、仪表盘多模块跳转。注意事项预取需考虑隐私与带宽；对敏感页面仅使用延迟或条件预取。PPR/RSC 与预取协同，避免重复拉取与资源浪费。常见问题Q: Speculation Rules 与 Next 预取冲突吗？A: 一般不冲突；需避免重复策略导致过度资源占用。参考资料Next.js App Router 与 Navigation 文档；Speculation Rules 规范。---发布信息：已发布 · 技术验证 · 阅读 34 分钟 · CC BY-SA 4.0