Express中间件没有效果

I have the following code:

我有以下代码：

var express = require('express');
var app = express();
app.use(express.bodyParser());
app.use(express.cookieParser());
var port = Number(process.env.PORT || 5000);

app.get('/test/:id', function(req, res) {
    res.send(req.params);
});

app.listen(port);
console.log("Listening on port " + port);
var expr