app.use(express.static('public'));

app.get('/index.htm',function (req,res) {
res.sendFile( __dirname + "/" + "index.htm" );
})

app.post('/process_post',urlencodedParser,res) {

// 输出 JSON 格式
response = {
first_name:req.body.first_name,last_name:req.body.last_name
};
console.log(response);
res.end(JSON.stringify(response));
})

var server = app.listen(8081,function () {

var host = server.address().address
var port = server.address().port

console.log("应用实例，访问地址为 http://%s:%s",host,port)

})