koa2实现静态资源服务器

const Koa = require('koa')
const app = new Koa()
const path = require('path')

// 静态资源
app.use(require('koa-static')(path.join(__dirname) + '/public'))
app.use(async (ctx) => {
  ctx.body = 'static file server'
})
app.listen(3001, () => {
  console.log('build success')
})

{
  "name": "demo",
  "version": "1.0.0",
  "description": "",
  "main": "index.js",
  "scripts": {
    "test": "echo \"Error: no test specified\" && exit 1"
  },
  "author": "",
  "license": "ISC",
  "dependencies": {
    "koa": "^2.11.0",
    "koa-static": "^5.0.0",
    "path": "^0.12.7"
  }
}

node app.js