egg学习笔记(5)--cookie,session

简介

session 是另一种记录客户状态的机制，不同的是 Cookie 保存在客户端浏览器中，而

session 保存在服务器上。

当浏览器访问服务器并发送第一次请求时，服务器端会创建一个 session 对象，生成一

个类似于 key,value 的键值对，然后将 key(cookie)返回到浏览器(客户)端，浏览器下次再
访问时，携带 key(cookie)，找到对应的 session(value)

目录结构

cookie

setcookie

//router.js

  router.get('/setcookie', controller.cookie.setcookie);
  router.get('/getcookie', controller.cookie.getcookie);
  router.get('/clearcookie', controller.cookie.clearcookie);

//controller/cookie.js

'use strict';

const Controller = require('egg').Controller;

class CookieController extends Controller {
    async setcookie() {
        this.ctx.cookies.set("name", "张三",{
            maxAge: 24 * 3600 * 1000,
            httpOnly: true, // by default it's true
            encrypt: true, // 加密，并且可以设置为中文
        });
        await this.ctx.render('setcookie')
    }
    async getcookie() {
        let name = this.ctx.cookies.get("name",{
            encrypt: true, 
        });
        await this.ctx.render('getcookie', {
            name
        })
    }
    async clearcookie() {
        // this.ctx.cookies.set("name", null);
        this.ctx.cookies.set("name", {
            maxAge: 0,
        });
        this.ctx.redirect("/")
    }
}

module.exports = CookieController;

//getcookie.html

<!DOCTYPE html>
<html lang="en">
<head>
    <meta charset="UTF-8">
    <meta name="viewport" content="width=device-width, initial-scale=1.0">
    <meta http-equiv="X-UA-Compatible" content="ie=edge">
    <title>Document</title>
</head>
<body>
    <div>
            <%= name %>
    </div>
    
</body>
</html>

session

//router.js

  router.get('/setsession', controller.session.setsession);
  router.get('/getsession', controller.session.getsession);

//congif/config.default.js

  config.session = {
    key:'SESSION_ID',  //key名字
    maxAge:1000*60*24,
    httpOnly:true,
    encrypt:true, //加密 
    renew:true //最大时间范围内，刷新，自动增加最大时间
  }

//controller/session.js

'use strict';

const Controller = require('egg').Controller;

class SessionController extends Controller {
    async setsession() {
        this.ctx.session.userinfo = {
            name: '张三',
            age: '20'
        }
        await this.ctx.render('setsession')
    }
    async getsession(){
        var userinfo=this.ctx.session.userinfo;
        await this.ctx.render('getsession',{
            userinfo
        })
    }
}

module.exports = SessionController;

egg学习笔记(5)--cookie,session

简介

目录结构

cookie

setcookie

session

渣渣辉

引用和评论

springboot(二)、RestApi