server.js

var http = require("http");
var url = require("url");
var fs = require("fs");


var server = http.createServer(function (request, response) {
    var ua = request.headers['user-agent'];
    console.log(ua);
    var urlObj = url.parse(request.url, true);
    var pathname = urlObj.pathname;
    console.log(pathname)

    var reg = /\.html/i;
    if (reg.test(pathname)) {
        console.log("passed " + pathname);
        var con = fs.readFileSync("." + pathname, "utf8");
        response.writeHead(200, {"content-type": "text/html;charset=utf-8"});
        response.end(con);
    }


    //img/bg2.jpg
    var reg1 = /\.jpg/i;
    if (reg1.test(pathname)) {
        var img = fs.readFileSync("." + pathname);
        response.writeHead(200, {"content-type": "image/jpg;charset=utf-8;"});
        response.end(img);
    }


});

server.listen(8801, function () {
    console.log("port 8801");
});