2021-08-23 nodejs中设置cookie的步骤

1.安装cookie-parser:

命令:npm install cookie-parser --save

2.引入

var express = require("express");
var cookieParser = require("cookie-parser");
var app = new express();

3.设置中间件

app.use(cookieParser());

4.设置和读取cookie

app.get('/', function(req, res) {
    console.log(req.cookies);
    res.send("你好,我在设置cookies");
});
app.get('/data', function(req, res) {
    //设置cookie
    res.cookie("name", "zhangsan");
    //读取cookie
    res.send(res.cookie);
});

5.监听

app.listen(3210, 'localhost');

完整代码:

app.js

// 1.安装cookie-parser:npm install cookie-parser --save
// 2.引入
var express = require("express");
var cookieParser = require("cookie-parser");
var app = new express();
// 3.设置中间件
app.use(cookieParser());
// 4.设置cookie
app.get('/', function(req, res) {
    console.log(req.cookies);
    res.send("你好,我在设置cookies");
});
app.get('/data', function(req, res) {
    //设置cookie
    res.cookie("name", "zhangsan");
    //读取cookie
    res.send(res.cookie);
});
//5.监听
app.listen(3210, 'localhost');

输入命令:node app

浏览器地址栏

输入

http://localhost:3210/

输出

你好,我在设置cookies

输入

http://localhost:3210/data

输出