GO—-操作session

在php内置了session功能，直接启用使用即可。

在GO语言中，标准包中并不支持session,现在推荐牛人开源的session包。

github.com/astaxie/session

使用代码如下：

package main

import (
	"fmt"
	"github.com/astaxie/session"
	_ "github.com/astaxie/session/providers/memory"
	"log"
	"net/http"
)

var globalSessions *session.Manager

//然后在init函数中初始化
func init() {
	globalSessions, _ = session.NewManager("memory", "gosessionid", 3600)
	go globalSessions.GC()
}

func sayhelloName(w http.ResponseWriter, r *http.Request) {
	sess := globalSessions.SessionStart(w, r)
	w.Header().Set("Content-Type", "text/html")
	sessionval := sess.Get("username")
	if sessionval == nil {
		fmt.Fprintf(w, "session：username  is null<br/>")
		sess.Set("username", "sessionval")
	} else {
		fmt.Fprintf(w, "session：username  is ")
		fmt.Fprintf(w, sessionval.(string))
		fmt.Fprintf(w, "<br/>")
	}
}

func main() {
	http.HandleFunc("/", sayhelloName)       //设置访问的路由
	err := http.ListenAndServe(":9090", nil) //设置监听的端口
	if err != nil {
		log.Fatal("ListenAndServe: ", err)
	}
}

大家可以参考代码来了解session的原理！

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