func Jwt_encode(data map[string]interface{}, secret_string string) string {
	new_data := jwt.MapClaims{}
	for key, value := range data {
		new_data[key] = value
	}
	token := jwt.NewWithClaims(jwt.SigningMethodHS256, new_data)
	token_string, _ := token.SignedString(secret_string)
	return token_string
}

package main
import (
	"log"
	"testing"
	"github.com/yingshaoxo/gopython/jwt_tool"
)
func Test_jwt(t *testing.T) {
	secret := "no way"
	data := make(map[string]interface{})
	data["user"] = "yingshaoxo"
	jwt_string := jwt_tool.Jwt_encode(data, secret)
	log.Println(jwt_string)
	new_data, _ := jwt_tool.Jwt_decode(jwt_string, secret)
	log.Println(data)
	log.Println(new_data)
}