var express = require('express'),
    routes = require('./routes'),
    http = require('http'),
    path = require('path'),
    fs = require('fs');

var app = express();

app.set('port', process.env.PORT || 3000);
app.set('views', path.join(__dirname, 'views'));
app.set('view engine', 'jade');

app.use(express.json());
app.use(app.router);
app.use(express.static(path.join(__dirname, 'public')));

app.get('/', routes.index);

http.createServer(app).listen(app.get('port'), function(){
  console.log('Express server listening on port ' + app.get('port'));
});

我得到错误Most middleware (like json) is no longer bundled with....
我把npm installed connect放在同一个文件夹里。
但我该怎么用呢？
我找不到任何关于connect & express的组合教程，他们要么谈论connect，要么谈论express。