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文件服务 ​

上传下载 ​

js
const mimeTypes = {
  html: 'text/html',
  jpeg: 'image/jpeg',
  jpg: 'image/jpeg',
  png: 'image/png',
  js: 'text/javascript',
  css: 'text/css',
  txt: 'text/plain',
}

文件下载 ​

js
const fs = require('node:fs')
const http = require('node:http')
const path = require('node:path')

const server = http.createServer(async (req, res) => {
  const filePath = path.resolve('assets/sample.png')

  res.setHeader('Content-Type', 'image/png')
  res.setHeader('Content-Disposition', 'attachment; filename="filename.jpg"')

  res.statusCode = 200
  fs.createReadStream(filePath).pipe(res)
})

server.listen(3000, () => {
  console.log(`server listen at http://localhost:3000`)
})

如果使用 res.setHeader('Content-Disposition', 'attachment; filename="filename.jpg"'); 将 Content-Disposition 设置为 'attachment; filename="filename.jpg"' 这可使用<a download href="http://localhost:3000/download">H5 下载</a> 下载图片

Reference ​