Requêtes Node.js GET/POST

[code]var http = require('http');
var url = require('url');
var util = require('util');
http.createServer(function (req, res) {
    res.writeHead(200, { 'Content-Type' : 'text/plain'});
    res.end(util.inspect(url.parse(req.url, true)));
}).listen(8888);

[code]var http = require('http');
var querystring = require('querystring');
var util = require('util');
http.createServer(function (req, res) {
    // post 发送的数据
    var post = 'username=zhang&age=23';
    req.on('data', function (chunk) {
        post += chunk;
    });
    req.on('end', function () {
        post = querystring.parse(post);
        console.log(post);
        res.end(util.inspect(post));
    })
}).listen(8888);