GolangはSQLnull値Nullの問題を解決します

type TRows struct {
	rows *sql.Rows
}

func NewRows(rows *sql.Rows) *TRows {
	r := &TRows{}
	r.rows = rows
	return r
}

func (self *TRows) Scan(args ...interface{}) error {
	args2 := []interface{}{}

	for _, v := range args {
		switch d := v.(type) {
		case *int, *int64:
			args2 = append(args2, &sql.NullInt64{})
		case *string, *time.Time:
			args2 = append(args2, &sql.NullString{})
		default:
			log.Println(v, d)
			log.Fatal("不知道的类型 %T", d)
		}
	}

	err := self.rows.Scan(args2...)
	if err != nil {
		return err
	}

	for i, v := range args {
		switch d := v.(type) {
		case *int:
			*d = int(args2[i].(*sql.NullInt64).Int64)
		case *int64:
			*d = args2[i].(*sql.NullInt64).Int64
		case *string:
			*d = args2[i].(*sql.NullString).String
		case *time.Time:
			log.Println(args2[i].(*sql.NullString))
			*d, _ = time.ParseInLocation("2006-01-02T15:04:05.999Z", args2[i].(*sql.NullString).String, time.Local)
			log.Println(*d)
		default:
			log.Fatalln("不知道的类型222")
		}
	}
	return nil
}