node.js简单的Web服务器请求生命周期

Question

I'm new to server side Javascript so to Node.js. Well, Here I'm trying some very simple thing such as

var http = require("http");

http.createServer(function(request, response) {
  console.log("node server");
  response.writeHead(200, {"Content-Type": "text/plain"});
  response.write("Hello World");
  response.end();
}).listen(2424);

As I see the result whenever I send a request to the server console.log("node server"); executes twice. Why it's happening, how node (or http.createServer ) serves a request?

Answer 1

By default, all requests to pages also asks for the favicon.

To check what resources are being requested on a single page visit, try the additional console.log.

console.log(request.path);

Just a hunch, but this is probably the most likely cause.

Answer 2

发布请求时，您需要检查请求代码。