本文尝试使用nodejs搭建一个文件服务器。
首先在官方下载node环境并安装：https://nodejs.org/en/download/
安装后node被加入到系统环境变量中。
>node --version
>v12.14.1

 1 const http = require("http"); 2 const Path = require("path"); 3 const fs = require("fs"); 4  5 var server = http.createServer(function(req, res) { 6 let currUrl = decodeURIComponent(req.url); 7 const fileName = Path.resolve(__dirname, "../" + currUrl); 8 const extName = Path.extname(fileName).substr(1); 9 10 if (fs.existsSync(fileName)) { //判断本地文件是否存在11 var mineTypeMap = {12 html: ‘text/html;charset=utf-8‘,13 htm: ‘text/html;charset=utf-8‘,14 xml: "text/xml;charset=utf-8",15 png: "image/png",16 jpg: "image/jpeg",17 jpeg: "image/jpeg",18 gif: "image/gif",19 css: "text/css;charset=utf-8",20 txt: "text/plain;charset=utf-8",21 mp3: "audio/mpeg",22 mp4: "video/mp4",23 ico: "image/x-icon",24 tif: "image/tiff",25 svg: "image/svg+xml",26 zip: "application/zip",27 ttf: "font/ttf",28 woff: "font/woff",29 woff2: "font/woff2",30  }31 if (mineTypeMap[extName]) {32 res.setHeader(‘Content-Type‘, mineTypeMap[extName]);33  }34 var stream = fs.createReadStream(fileName);35  stream.pipe(res);36  }37 })38 server.listen(8001, function(){39 console.log("http server is running on port 8001!");40 });

文件目录：

运行服务：node index.js

打开chrome浏览器：输入http://127.0.0.1:8001/demo/Simple3DEditor/index.html

仅供参考！