部分预渲染(实验性)
部分预渲染是一项实验性功能,可能会发生变化。
¥Partial Prerendering is an experimental feature and subject to change.
部分预渲染 (PPR) 是一种渲染策略,它结合了同一路由上静态和动态渲染的优点。使用 PPR,你可以将任何 dynamic 组件封装在 悬念 边界中。当有新请求时,Next.js 将立即从缓存中提供静态 HTML shell,然后在同一个 HTTP 请求中渲染和 stream 动态部分。
¥Partial Prerendering (PPR) is a rendering strategy that combines the benefits of static and dynamic rendering on the same route. With PPR, you can wrap any dynamic components in a Suspense boundary. When a new request comes in, Next.js will immediately serve a static HTML shell from the cache, then render and stream the dynamic parts in the same HTTP request.
🎥 监视:为什么使用 PPR 以及它的工作原理 → YouTube(10 分钟)。
¥🎥 Watch: Why PPR and how it works → YouTube (10 minutes).
增量采用(版本 15)
¥Incremental Adoption (Version 15)
在 Next.js 15 中,你可以通过将 next.config.js
中的 ppr
选项设置为 incremental
,并在文件顶部导出 experimental_ppr
路由配置选项,逐步采用 layouts 和 pages 中的部分预渲染:
¥In Next.js 15, you can incrementally adopt Partial Prerendering in layouts and pages by setting the ppr
option in next.config.js
to incremental
, and exporting the experimental_ppr
route config option at the top of the file:
const nextConfig = {
experimental: {
ppr: 'incremental',
},
}
module.exports = nextConfig
import { Suspense } from "react"
import { StaticComponent, DynamicComponent, Fallback } from "@/app/ui"
export const experimental_ppr = true
export default function Page() {
return {
<>
<StaticComponent />
<Suspense fallback={<Fallback />}>
<DynamicComponent />
</Suspense>
</>
};
}
import { Suspense } from "react"
import { StaticComponent, DynamicComponent, Fallback } from "@/app/ui"
export const experimental_ppr = true
export default function Page() {
return {
<>
<StaticComponent />
<Suspense fallback={<Fallback />}>
<DynamicComponent />
</Suspense>
</>
};
}
很高兴知道:
¥Good to know:
没有
experimental_ppr
的路由将默认为false
,并且不会使用 PPR 进行预渲染。你需要为每条路由明确选择加入 PPR。¥Routes that don't have
experimental_ppr
will default tofalse
and will not be prerendered using PPR. You need to explicitly opt-in to PPR for each route.
experimental_ppr
将应用于路由段的所有子项,包括嵌套布局和页面。你不必将其添加到每个文件中,只需添加到路由的顶部部分即可。¥
experimental_ppr
will apply to all children of the route segment, including nested layouts and pages. You don't have to add it to every file, only the top segment of a route.要禁用子段的 PPR,你可以在子段中将
experimental_ppr
设置为false
。¥To disable PPR for children segments, you can set
experimental_ppr
tofalse
in the child segment.
启用 PPR(版本 14)
¥Enabling PPR (Version 14)
对于版本 14,你可以通过将 ppr
选项添加到 next.config.js
文件来启用它。这将适用于应用中的所有路由:
¥For version 14, you can enable it by adding the ppr
option to your next.config.js
file. This will apply to all routes in your application:
const nextConfig = {
experimental: {
ppr: true,
},
}
module.exports = nextConfig