定義程序計(jì)時(shí)中間件，然后定義2個(gè)路由，執(zhí)行函數(shù)后應(yīng)該打印統(tǒng)計(jì)時(shí)間，如下：

image.png

package main

import (
    "fmt"
    "github.com/gin-gonic/gin"
    "time"
)
// 定義中間件
func myTime(c *gin.Context){
    start := time.Now()
    c.Next()
    // 統(tǒng)計(jì)時(shí)間
    since := time.Since(start)
    fmt.Println("程序用時(shí)：",since)
}

func main() {
    // 1. 創(chuàng)建路由器
    r := gin.Default()
    // 1.注冊中間件
    r.Use(myTime)
    // {}為了代碼規(guī)范
    shoppingGroup:=r.Group("/shopping")
    {
        shoppingGroup.GET("/index",shopIndexHandler)
        shoppingGroup.GET("/home",shopHomeHandler)
    }
    // 3.監(jiān)聽端口，默認(rèn)8080
    r.Run(":8000")
}
func shopIndexHandler(c *gin.Context){
    time.Sleep(5*time.Second)
}
func shopHomeHandler(c *gin.Context){
    time.Sleep(5*time.Second)
}

localhost:8000/shopping/index
localhost:8000/shopping/home

結(jié)果.png

之前以為起兩個(gè)默認(rèn)路由，結(jié)果會(huì)報(bào)錯(cuò)的，而答案是起個(gè)路由組，使用兩個(gè)GET請求。