我正在做一个博客包含数学公式的markdown页面。我有markdown文件本地存储在一个文件夹中。这是我的博客页面。tsx-

import React from 'react'

import fs from "fs"

import Markdown from "react-markdown"
import rehypeKatex from "rehype-katex"
import remarkMath from "remark-math"
import rehypeRaw from "rehype-raw"
import matter from "gray-matter"
import 'katex/dist/katex.min.css'

// export const runtime = 'edge'
const getPostContent = (postID: string) => {

  const folder = "src/blogPosts";
  const file = `${folder}/${postID}.md`;
  const content = fs.readFileSync(file, "utf8");
  const matterResult = matter(content);
  return matterResult;
};

export const generateStaticParams = async () => {

  return [{ postID: "blog-post1" }]
};


const BlogPage = (props: any) => {


  const postID = props.params.postID;
  const post = getPostContent(postID)


  return (

    <>
      <h1>{post.data.title}</h1>

      <Markdown remarkPlugins={[remarkMath]} rehypePlugins={[rehypeKatex, rehypeRaw]}>
        {post.content}</Markdown>

    </>

  )
}

export default BlogPage

字符串
它在localhost上运行得很好。但是在Cloudflare页面上尝试部署时出错。

19:18:58.294    ⚡️ Completed `npx vercel build`.
19:18:58.342    ⚡️ Invalid prerender config for /allblogs/[postID]
19:18:58.343    ⚡️ Invalid prerender config for /allblogs/[postID].rsc
19:18:59.959    
19:18:59.960    ⚡️ ERROR: Failed to produce a Cloudflare Pages build from the project.
19:18:59.961    ⚡️ 
19:18:59.961    ⚡️  The following routes were not configured to run with the Edge Runtime:
19:18:59.961    ⚡️    - /allblogs/[postID]
19:18:59.961    ⚡️ 
19:18:59.962    ⚡️  Please make sure that all your non-static routes export the following edge runtime route segment config:
19:18:59.962    ⚡️    export const runtime = 'edge';
19:18:59.962    ⚡️ 
19:18:59.962    ⚡️  You can read more about the Edge Runtime on the Next.js documentation:
19:18:59.962    ⚡️    https://nextjs.org/docs/app/building-your-application/rendering/edge-and-nodejs-runtimes
19:18:59.962    
19:18:59.992    Failed: Error while executing user command. Exited with error code: 1
19:19:00.002    Failed: build command exited with code: 1
19:19:01.023    Failed: error occurred while running build command

型
在页面上添加export const runtime = 'edge'与'fs'模块冲突，并显示错误-
Error: Module not found: Can't resolve 'fs'个
边缘运行时似乎与nodejs模块冲突。作为'fs'的替代方案，我试着像这样使用fetch

const getPostContent = async (postID: string) => {
  const resource = await import(`${folder}/${postID}.md`);
  const res = await fetch(resource.default);
  console.log(res)
  if (!res.ok) {
      throw new Error(`${resource.default}: ${res.status} ${res.statusText}`);
  }
  return res.text();
  };

型
但它抛出了一个错误-

⨯ unhandledRejection: Error: Cannot find module

型
在这一点上，我卡住了。谁能帮助我阅读markdown文件？还有什么替代方法可以导入markdown文件，而不会与边缘运行冲突？
先谢了。

import React from 'react'; import fs from 'fs'; import path from 'path'; import Markdown from 'react-markdown'; import rehypeKatex from 'rehype-katex'; import remarkMath from 'remark-math'; import rehypeRaw from 'rehype-raw'; import matter from 'gray-matter'; import 'katex/dist/katex.min.css'; const postsDirectory = path.join(process.cwd(), 'src/blogPosts'); export async function getStaticPaths() { // Read all markdown files in the postsDirectory const filenames = fs.readdirSync(postsDirectory); // Create a route for each markdown file const paths = filenames.map((filename) => { return { params: { postID: filename.replace(/\.md$/, ''), }, }; }); return { paths, fallback: false, }; } export async function getStaticProps({ params }) { // Read the markdown file for the current postID const fullPath = path.join(postsDirectory, `${params.postID}.md`); const fileContents = fs.readFileSync(fullPath, 'utf8'); // Parse the post metadata section const matterResult = matter(fileContents); // Pass the post data to the page via props return { props: { post: matterResult, }, }; } const BlogPage = ({ post }) => { return ( <> <h1>{post.data.title}</h1> <Markdown remarkPlugins={[remarkMath]} rehypePlugins={[rehypeKatex, rehypeRaw]} > {post.content} </Markdown> </> ); }; export default BlogPage;

1条答案

按热度按时间

vohkndzv1#

在将使用Node. js特定模块（如fs）的Next.js应用程序部署到Cloudflare Pages等静态托管提供商时，您似乎面临着一个常见问题。
fs模块在浏览器或Cloudflare Pages用于动态路由的无服务器函数中不可用。
要解决这个问题，您应该使用Next.js的getStaticProps和getStaticPaths函数在构建时读取markdown文件，而不是在运行时读取。
通过这种方式，您可以将每个博客文章预渲染为静态页面，可以直接由Cloudflare Pages提供服务，而无需访问文件系统。

字符串
让我解释一下上面的代码：

getStaticPaths读取src/blogPosts目录中的所有markdown文件并为它们生成路径。这会告诉Next.js在构建时要生成哪些页面。
getStaticProps获取getStaticPaths提供的postID，读取相应的markdown文件，并将内容作为props传递到您的页面。
BlogPage组件接收post内容作为props并呈现它。

希望这可以帮助你！！

赞(0）回复(0）举报 12个月前

使用'fetch'或其他方法代替'fs'读取NextJS中的markdownfiles

1条答案

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