httpd_sample.js

var http = require('http'),
    url = require('url'),
    path = require('path'),
    fs = require('fs'),

var port_local = 8080;

var load_static_file = function(uri, response) {
    // 相対パスで静的リソースを配信する。
    var tmp = uri.split('.');
    var type = tmp[tmp.length - 1];
    var filename = path.join(process.cwd(), uri);

    path.exists(filename, function(exists) {
        if (!exists) {
            response.writeHead(404, {'Content-Type': 'text/plain'});
            response.write('404 Not Found\n');
            response.end();
            return;
        }

        fs.readFile(filename, 'binary', function(err, file) {
            if (err) {
                response.writeHead(500, {'Content-Type': 'text/plain'});
                response.write(err + '\n');
                response.end();
                return;
            }

            switch (type) {
            case 'html':
                response.writeHead(200, {'Content-Type': 'text/html'});
                break;
            case 'js':
                response.writeHead(200, {'Content-Type': 'text/javascript'});
                break;
            case 'css':
                response.writeHead(200, {'Content-Type': 'text/css'});
                break;
            }
            response.write(file, 'binary');
            response.end();
        });
    });
};

copy from: http://d.hatena.ne.jp/Jxck/20101022/1287765155