ar server=require(‘./server‘);var route=require(‘./router‘);var requestHandler=require(‘./requestHandlers‘);<!-- 声明一个对象  -->var handle={}handle[‘/‘]=requestHandler.start;handle[‘/start‘]=requestHandler.start;handle[‘/upload‘]=requestHandler.upload;server.start(route.route,handle);

var http=require(‘http‘);var url=require(‘url‘);function start(route,handle){        function onRequest(request,response){                var pathname=url.parse(request.url).pathname;                console.log(‘received pathname:‘+pathname);                route(handle,pathname);                response.writeHead(200,{‘Content-Type‘:‘text/plain‘});                response.write(‘hello world‘);                response.end();        }        http.createServer(onRequest).listen(8888);        console.log(‘server has started‘);}exports.start=start;

function route(handle,pathname){        console.log(‘About to route a request for ‘+pathname);        if(typeof handle[pathname] == ‘function‘){                handle[pathname]();        }else{                console.log(‘No request handler found for:‘+pathname);        }}exports.route=route;

function start(){        console.log(‘Request handler START was called‘);        function sleep(millsec){                var startTime=new Date().getTime();                while(new Date().getTime()<startTime+millsec);        }        sleep(10000);        return ‘Hello Start‘;}function upload(){        console.log(‘Request handler UPLOAD was called‘);        return ‘Hello Upload‘;}exports.start=start;exports.upload=upload;