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golang 学習メモ: 初めてのフォーム

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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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