cookie

1.安装依赖包

yarn add cookie-parser
或者 npm i  cookie-parser
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2.使用

//注册
const cookieParser = require('cookie-parser')

app.use(cookieParser())
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3.写接口

//设置cookie
app.get("/set_cookie",(req,res) => {
  res.cookie('name',"node",{maxAge: 60*60*2})
  res.cookie("age",11)
  res.send("设置了cookie")
})

//获取cookie
app.get("/get_cookie",(req,res)=>{
  let name = req.cookies['name']
  let age = req.cookies["age"]
  res.send({
    name: name,
    age:age
  })
})
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session cookie-session

session依赖于cookie

1.安装依赖包

yarn add cookie-session
或者 npm i  cookie-session
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2.使用

//注册session
const cookieSession = require('cookie-session')

app.use(cookieSession({
  name:"my_session", //命名
  keys:["asdaafadsfgdgjsidlyfgulaujhisuhdifgweui"],  //加密字段
  maxAge: 1000 * 60 * 60 *24 *2  //保存的时间
}))
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3.写接口

//设置session

app.get("/set_session",(req,res)=>{
  req.session["name"] = "xinghuo"
  req.session["age"] = 20
  res.send("设置了session")
})

//获取session
app.get("/get_session",(req,res)=>{
  let name = req.session["name"]
  let age = req.session["age"]
  res.send({
    name,
    age
  })
})

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---

这两种方式不能同时使用

---

session express-session

安装依赖

yarn add express-session
或 npm i express-session
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使用

const expressSession= require("express-session")
app.use(expressSession({
  secret:"xinghuo",
  resave:false,
  saveUninitialized:true
}))
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写接口

//设置
router.get("/set_eSession",(req,res) =>{
    req.session.user = {name:'张三',age:18}
    res.send("设置了expressSession")
})
//获取
router.get("/get_eSession",(req,res)=>{
    const {user} = req.session
    res.send(user)
})
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