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golang 学習メモ: 初めてのフォーム

Posted at

POST も GET も http.Request.FormValue(key) で値が取得出来るみたい。

package main

import (
	"fmt"
	"html"
	"net/http"
)

func Serve(w http.ResponseWriter, r *http.Request) {
	title := html.EscapeString(r.URL.Path[1:])
	value_post := r.FormValue("value_post")
	value_get := r.FormValue("value_get")
	// header.Get("value_get")
	output := `
<html>
	<head>
		<title>` + title + `</title>
	</head>
	<body>
		<form action=? method=post>
			<input type=text name=value_post value=` + html.EscapeString(value_post) + `>
			<input type=submit name=submit value=送信>
		</form>
		<ul>
			<li>あたなが POST したのは→ ` + html.EscapeString(value_post) + `</li>
			<li>あたなが GET したのは→ ` + html.EscapeString(value_get) + `</li>
		</ul>
	</body>
</html>
`
	fmt.Fprintf(w, "%s", output)
}

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