Go で構造体のフィールド一覧をリフレクションで取得する

main.go

package main

import (
	"reflect"
	"fmt"
)

type Hoge struct {
	Hello string
	World string
	Number int
	_ABC string
	privateMember string
}

func main() {
	hoge := Hoge{
		Hello: "hello",
		World: "world",
		Number: 30,
		_ABC: "_abc",
		privateMember: "private",
	}
	hogeValue := reflect.ValueOf(hoge)
	hogeType := reflect.TypeOf(hoge)

	numField := hogeValue.NumField()
	for i := 0; i < numField; i++ {
		field := hogeType.Field(i)
		fieldValue := hogeValue.Field(i).String()
		fmt.Printf("%s = %s\n", field.Name, fieldValue)
	}
}

zzz_実行結果.txt

$ go run main.go
Hello = hello
World = world
Number = <int Value>
_ABC = _abc
privateMember = private