koa2设置cookie

#cookie.js 
 1 const Koa=require('koa');
 2 let app = new Koa();
 3 
 4 app.use(async ctx=>{
 5     if(ctx.url === '/index'){
 6         ctx.cookies.set('username','lisa',{
 7             domain:'localhost',
 8             path:'/index',   //cookie写入的路径
 9             maxAge:1000*60*60*1,
10             expires:new Date('2018-07-06'),
11             httpOnly:false,
12             overwrite:false
13         }
14         );
15         ctx.body = 'cookies is seted;'
16     }else{
17             console.log(ctx.cookies.get('username'))
18         if(ctx.cookies.get('username')){
19             ctx.body = 'welcome ' + ctx.cookies.get('username');
20         }else{
21 
22             ctx.body = 'hello koa2'
23         }
24     }
25 });
26 
27 app.listen(3333, ()=>{
28     console.log('set cookie')
29 })

运行：node cookie.js

浏览器中访问 http://localhost:3333/index  ，可查看到cookie已经设置成功。

再访问https://localhost:3333/index/user  , 可获取设置的cookie