在遇到 XML 标记名称是动态的情况之前，我一直在使用 unmarshal 没有任何问题。
XML 可能如下所示：
<unit_amount_in_cents>
<USD type="integer">4000</USD>
</unit_amount_in_cents>
<setup_fee_in_cents>
<USD type="integer">4000</USD>
</setup_fee_in_cents>
或者
<unit_amount_in_cents>
<GBP type="integer">4000</GBP>
</unit_amount_in_cents>
<setup_fee_in_cents>
<GBP type="integer">4000</GBP>
</setup_fee_in_cents>
或者可以同时拥有（或更多）
<unit_amount_in_cents>
<USD type="integer">4000</USD>
<GBP type="integer">4000</GBP>
</unit_amount_in_cents>
<setup_fee_in_cents>
<USD type="integer">4000</USD>
<GBP type="integer">4000</USD>
</setup_fee_in_cents>
我可以通过将 XML.Name.Local 分配给我需要的但不能解组它来编组到没有问题的 xml。
这是结构的样子
type Plan struct {
XMLName xml.Name `xml:"plan"`
Name string `xml:"name,omitempty"`
PlanCode string `xml:"plan_code,omitempty"`
Description string `xml:"description,omitempty"`
SuccessUrl string `xml:"success_url,omitempty"`
CancelUrl string `xml:"cancel_url,omitempty"`
DisplayDonationAmounts bool `xml:"display_donation_amounts,omitempty"`
DisplayQuantity bool `xml:"display_quantity,omitempty"`
DisplayPhoneNumber bool `xml:"display_phone_number,omitempty"`
BypassHostedConfirmation bool `xml:"bypass_hosted_confirmation,omitempty"`
UnitName string `xml:"unit_name,omitempty"`
PaymentPageTOSLink string `xml:"payment_page_tos_link,omitempty"`
PlanIntervalLength int `xml:"plan_interval_length,omitempty"`
PlanIntervalUnit string `xml:"plan_interval_unit,omitempty"`
AccountingCode string `xml:"accounting_code,omitempty"`
CreatedAt *time.Time `xml:"created_at,omitempty"`
SetupFeeInCents CurrencyArray `xml:"setup_fee_in_cents,omitempty"`
UnitAmountInCents CurrencyArray `xml:"unit_amount_in_cents,omitempty"`
}
type CurrencyArray struct {
CurrencyList []Currency
}
func (c *CurrencyArray) AddCurrency(currency string, amount int) {
newc := Currency{Amount:fmt.Sprintf("%v",amount)}
newc.XMLName.Local = currency
c.CurrencyList = append(c.CurrencyList, newc)
}
func (c *CurrencyArray) GetCurrencyValue(currency string) (value int, e error) {
for _, v := range c.CurrencyList {
if v.XMLName.Local == currency {
value, e = strconv.Atoi(v.Amount)
return
}
}
e = errors.New(fmt.Sprintf("%s not found",currency))
return
}
type Currency struct {
XMLName xml.Name `xml:""`
Amount string `xml:",chardata"`
}