app.js

const http = require("http");
const fs = require("fs");
const common = require("./module/common.js");
const path = require("path");
const url = require("url");
http.createServer(function(req,res){
    //1、获取地址
    let pathname = url.parse(req.url).pathname;
    pathname = pathname == '/'?'/index.html':pathname;
    let extname = path.extname(pathname);
    //2、通过fs模块读取文件
    if(pathname != '/favicon.ico'){
        fs.readFile('./static'+pathname,async (err,data)=>{
            if(err){
                res.writeHead(404,{'Content-Type':'text/html;charset="utf-8"'});
                res.end('404这个页面不存在');
            }
            let mime = await common.getFileMime(extname);
            res.writeHead(200,{'Content-Type':''+mime+';charset="utf-8"'});
            res.end(data);
        })
    }
})
.listen(8081)
console.log('Server running at http://127.0.0.1:8081/');

//读写流媒体大文件功能
// const fs = require('fs');
// var readStream = fs.createReadStream('./static/static.zip');
// var writeSteam = fs.createWriteStream('./data/demo.zip');
// readStream.pipe(writeSteam);