koa2--07.koa-session using

First install koa-session middleware

//koa-session的使用
const koa = require('koa');
var router = require('koa-router')();
var views = require('koa-views');
const static = require('koa-static');
const bodyParser = require('koa-bodyparser');
var session = require('koa-session');

was app = new coagulation ();
app.use(views('views',{
    map:{
        html:'ejs'
    }
}));
app.use(bodyParser());
app.use (static ( './www' ));
 // set the signature 
var Keys = [];
()=>{
    for(var i =0;i<1000;i++){
        keys.push(Math.random()*100);
    }
};
app.keys = keys;
const CONFIG = {
    Keys: 'koa, sess' ,
    maxAge:1000
};
app.use(session(CONFIG,app));//使用session
app.use(router.routes());
app.use(router.allowedMethods());
app.listen(80);