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GoでHTTPサーバを立ち上げる(超基礎)

Posted at

#GoでHTTPサーバを立ち上げる

server.go
package main

import (
	"fmt"
	"net/http"
)

func handler(w http.ResponseWriter, r *http.Request) {
	fmt.Fprint(w, "HTTPserver")
}

func main() {
	http.HandleFunc("/", handler)
	http.ListenAndServe(":8080", nil)
}

##ハンドラを定義する

func handler(w http.ResponseWriter, r *http.Request) {
	fmt.Fprint(w, "HTTPserver")
}

・1つ目の引数:レスポンス先
・2つ目の引数:リクエストの受付
・{ }内はハンドラで行う処理内容
##ハンドラとエントリポイントを結びつけ

 http.HandleFunc("/", handler)

・1つ目の引数:エントリポイント
・2つ目の引数:呼び出したいハンドラ
##サーバの立ち上げ

 http.ListenAndServe(":8080", nil)

・1つ目の引数でポート番号を決める

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