package main

import (
	"fmt"
	"github.com/gin-gonic/gin"
	"time"
)

//定义一个中间件程序计时，执行函数后应该打印的执行时间

func timeCal(c *gin.Context) {
	start := time.Now()
	c.Next()
	//统计时间
	since := time.Since(start)
	fmt.Println("程序耗时", since)
}

func main() {
	r := gin.Default()
	r.Use(timeCal)
	shopping := r.Group("/shopping")
	{
		shopping.GET("/index", shopIndexHandler)
		shopping.GET("/home", shophomeHandler)
	}
	r.Run(":8000")
}

func shopIndexHandler(c *gin.Context) {
	time.Sleep(time.Second * 5)
}

func shophomeHandler(c *gin.Context) {
	time.Sleep(time.Second * 3)
}