试着使用session

const express=require('express');
const cookieParser=require('cookie-parser');
const cookieSession=require('cookie-session');

var server=express();
server.listen(3000);

//先要解析cookie才可以有session
server.use(cookieParser());
//session必须要有一个keys保证安全
server.use(cookieSession({
  keys:['aaa','bbb','ccc']
}));
server.use('/favicon.ico',function(req,res){
  return 0;
});
server.use('/',function(req,res){
  if(req.session['count']==null){
    req.session['count']=1;
  }else{
    req.session['count']++;
  }
  console.log(req.session);
  res.send('ok');
});