Node.js http output response

var http = require("http");
var fs = require("fs");
console.log("Starting...");
var host = "127.0.0.1";
var port = 3003;/*from   ww  w  .j av a2 s . c om*/
var server = http.createServer( function (request, response) {
  console.log("Got a request: " + request.url);
  fs.readFile("." + request.url, function (error, data) {
    if (error) {
      response.writeHead(404, {"Content-type": "text/plain"});
      response.end("File not found.");
    } else {
      response.writeHead(200, {"Content-type": "text/html"});
      response.end(data);
    }
  });
});

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