Struct RefundOrder 

pub struct RefundOrder {
    pub out_trade_no: String,
    pub refund_amount: i64,
    pub out_request_no: String,
    pub reason: Option<String>,
}

退款订单 — 对齐 PHP Pay::alipay()->refund()

使用 Builder 模式构建退款内容，通过 PayProvider::refund 发起退款。

Fields

out_trade_no: String

商户订单号

refund_amount: i64

退款金额（分）

out_request_no: String

退款单号

reason: Option<String>

退款原因

Implementations

impl RefundOrder

pub fn new() -> Self

创建空退款订单

pub fn out_trade_no(self, out_trade_no: impl Into<String>) -> Self

设置商户订单号

pub fn refund_amount(self, refund_amount: i64) -> Self

设置退款金额（单位：分）

pub fn out_request_no(self, out_request_no: impl Into<String>) -> Self

设置退款单号

pub fn reason(self, reason: impl Into<String>) -> Self

设置退款原因

pub fn validate(&self) -> Result<(), PayError>

校验必填字段

返回

• 商户订单号为空 → PayError::MissingField
• 退款金额 ≤ 0 → PayError::MissingField
• 退款单号为空 → PayError::MissingField

Trait Implementations

impl Clone for RefundOrder

fn clone(&self) -> RefundOrder

Returns a duplicate of the value.

fn clone_from(&mut self, source: &Self)

Performs copy-assignment from source.

impl Debug for RefundOrder

fn fmt(&self, f: &mut Formatter<'_>) -> Result

Formats the value using the given formatter.

impl Default for RefundOrder

fn default() -> RefundOrder

Returns the “default value” for a type.