node解析查询字符串

var http=require("http");
var url=require("url");
var pages=[
    {id:"1",route:"",output:"Woohoo!"},
    {id:"2",route:"about",output:"A simple routing width node example"},
    {id:"3",route:"another page",output:function(){
        return "Here \'s "+this.route;
    }},
]
http.createServer(function(request,response){
    var id=url.parse(decodeURI(request.url),true).query.id;
    if (id) {
        pages.forEach(function(page){
            if(page.id===id){
                response.writeHead(200,{"Content-Type":"text/html"});
                response.end(typeof page.output ==="function" ? page.output() : page.output);
            }
        })
    }
    if (!response.finished) {
        response.writeHead(404);
        response.end("Page Not Found!");
    }
}).listen(8080);

与增加的ID属性可以访问我们的目标数据，例如，

本地的：8080？id = 2。