Go standard library (net/http) Go
適用於 Go standard library (net/http) 的 Go 程式碼片段，以空 GIF 回應對 /pixel.gif 的請求，GIF 在啟動時只解碼一次。
Go standard library (net/http) Go
package main
import (
"encoding/base64"
"log"
"net/http"
)
var gif, _ = base64.StdEncoding.DecodeString("R0lGODlhAQABAIAAAP///wAAACH5BAEAAAAALAAAAAABAAEAAAICRAEAOw==")
func main() {
// Go 1.22+ method-aware pattern; GET also answers HEAD.
http.HandleFunc("GET /pixel.gif", func(w http.ResponseWriter, r *http.Request) {
w.Header().Set("Content-Type", "image/gif")
w.Header().Set("Cache-Control", "no-store")
w.Write(gif) // small bodies get Content-Length automatically
})
log.Fatal(http.ListenAndServe(":8080", nil))
}
我們執行了這段程式碼，並比對了它回傳的位元組。
驗證
curl -sI http://localhost:8080/pixel.gif官方網站: Go standard library (net/http)