NodeJS 创建简单的静态服务器

var fs = require("fs");
var http = require("http");
var url = require("url");
var path = require("path");

var rootPath = "./static";

//mime 文件，用来做mine类型匹配的。网上能下载
var mineJSON = require("./mime.json");

var server = http.createServer(function(req,res){	
	
	 var reqPath = url.parse(req.url,true).pathname;
	 
	 if(reqPath == "/favicon.ico") return ;
	 
	 var extname = path.extname(reqPath);
	 
	
	 var mineType = mineJSON[extname];
	 console.log(mineType);
		
	 if(reqPath == "/") reqPath = "/index.html";
	 
	 var targetPath = rootPath + reqPath;
	 
	
	 fs.readFile(targetPath,function(err,data){
		if(err) {
			//throw err;
			//return 404page
			fs.readFile(rootPath + "/404.html",function(err,data){
				res.writeHead(200,{"Context-Type":"text/html;charset=UTF-8"});
				res.end(data);
			});
		} else {
			res.writeHead(200,{"Context-Type":""+mineType+";charset=UTF-8"});
			res.end(data);
		}
		
	 });
	 
});

server.listen(3000,"127.0.0.1");