简单的静态服务器接口, 直接上代码.

exports.start = function() {
	var http = require("http"),
		url  = require("url"),
		path = require("path"),
		fs   = require("fs");
	
	var server = http.createServer(function (req, res) {
		//res.setHeader('Connection', 'keep-alive');
		//res.setHeader('Expires', 'Mon, 31 Dec 2012 23:59:59 GMT');
		//res.setHeader('Cache-Control', 'max-age=31536000');
		
		var pathname = __dirname + url.parse(req.url).pathname;
		if(path.extname(pathname) == "") {
			pathname += "/";
		}
		if(pathname.charAt(pathname.length - 1) == "/") {
			pathname += "index.html";
		}
		
		path.exists(pathname, function(exists) {
			if(exists) {
				var type = {
					".html": "text/html",
					".htm": "text/html",
					".js": "text/javascript",
					".css": "text/css",
					".ico": "image/x-icon",
					".jpeg": "image/jpeg",
					".jpg": "image/jpeg",
					".png": "image/png",
					".gif": "image/gif",
					".xml": "text/xml",
					".json": "application/json",
					".txt": "text/plain",
					".pdf": "application/pdf",
					".swf": "application/x-shockwave-flash"
				};
				res.writeHead(200, {"Content-Type": type[path.extname(pathname)]});
				fs.readFile(pathname, function(err, data) {
					res.end(data);
				});
			} else {
				res.writeHead(404, {"Content-Type": "text/html"});
				res.end("<h1>404 Not Found</h1>");
			}
		});
	}).listen(8080, "127.0.0.1");
	
	console.log("Server is running at http://127.0.0.1:8080/");
	
	return server;
}