Golang Gin Session & Cookie

一. Cookie

func (con UserControl) Index(c *gin.Context) {
    /*** 设置Cookie
        func (c *Context) SetCookie(name, value string, maxAge int, path, domain string, secure, httpOnly bool) {
        参数:
            1. name       key
            2. value    value
            3. maxAge    过期时间(秒).如果只是想设置Cookie的保存路进而不详设置存活时间,可以在直接传nil,-1就是删除Cookie.
            4. path        Cookie的路径. "/"表示当前域都可以访问
            5. domain    Cookie路径Domain作用域.本地配制成localhost,正式上限配制成域名
            6. secure    当为true时,cookie在http中是无效的,在https才有效
            7. httpOnly    是微软堆cookie做的拓展. 如果在cookie中设置了true,则通过程序(JS脚本\applet等)将无法读取道Cookie信息,防止XSS攻击
    ***/
    c.SetCookie("username", "zhangsan", 3600, "/", "localhost", false, false)
    // 获取cookie
    username, _ := c.Cookie("username")
    fmt.Println(username)
    c.String(http.StatusOK, "用户列表-首页")
}

二. Session

# Session 库: https://github.com/gin-contrib/sessions
# 安装: go get github.com/gin-contrib/sessions

package main

import (
  "github.com/gin-contrib/sessions"
  "github.com/gin-contrib/sessions/cookie"
  "github.com/gin-gonic/gin"
)

func main() {
  r := gin.Default()
  store := cookie.NewStore([]byte("secret"))
  r.Use(sessions.Sessions("mysession", store))

  r.GET("/incr", func(c *gin.Context) {
    session := sessions.Default(c)
    var count int
    v := session.Get("count")
    if v == nil {
      count = 0
    } else {
      count = v.(int)
      count++
    }
    session.Set("count", count)
     // 可以保存在:内存/Redis/MongoDB/PostgreSQL  具体需要在初始化中间件的时候设置.   
    session.Save()
    c.JSON(200, gin.H{"count": count})
  })
  r.Run(":8000")
}