nodeJs中创建服务器

var http=require('http');

var httpObj=http.createServer(function(req,res) {
    console.log('someBody:' + req.url);
    switch (req.url) {
        case '/a.html':
            res.write('AA');
            res.end();
            break;
        case '/b.html':
            res.write('B');
            res.end();
            break;
        default :
            res.write('Index');
            res.end();
            break;
    }
});

httpObj.listen(8081);