更新

PetWash.Api/Controllers/OrdersController.cs

@@ -43,6 +43,33 @@ public class OrdersController : ControllerBase
         }
     }
 
+    [HttpPost("{id}/payment-qrcode")]
+    public async Task<IActionResult> CreatePaymentQrCode(int id)
+    {
+        var order = await _orderService.GetOrderAsync(id);
+        if (order == null)
+        {
+            return NotFound();
+        }
+
+        try
+        {
+            var payment = await _weChatPayService.CreateNativePayAsync(order, HttpContext.RequestAborted);
+
+            return Ok(new CreateOrderResponse
+            {
+                Order = order,
+                CodeUrl = payment.CodeUrl,
+                OutTradeNo = payment.OutTradeNo,
+                ExpiresAt = payment.ExpiresAt
+            });
+        }
+        catch (InvalidOperationException ex)
+        {
+            return StatusCode(StatusCodes.Status502BadGateway, ex.Message);
+        }
+    }
+
     [HttpPost("{id}/payment")]
     public async Task<IActionResult> ConfirmPayment(int id)
     {