21

server/MiAssessment/src/MiAssessment.Core/Services/WechatPayV3Service.cs

@@ -151,7 +151,25 @@ public class WechatPayV3Service : IWechatPayV3Service
 
             _logger.LogDebug("V3 下单请求: URL={Url}, Body={Body}", V3_JSAPI_URL, requestBody);
 
-            var response = await _httpClient.SendAsync(httpRequest);
+            HttpResponseMessage response;
+            try
+            {
+                response = await _httpClient.SendAsync(httpRequest);
+            }
+            catch (HttpRequestException ex) when (ex.InnerException is IOException)
+            {
+                // SSL 冷启动可能导致首次连接失败，重试一次
+                _logger.LogWarning(ex, "V3 下单首次请求失败(SSL冷启动)，正在重试: OrderNo={OrderNo}", request.OrderNo);
+
+                using var retryRequest = new HttpRequestMessage(HttpMethod.Post, V3_JSAPI_URL);
+                retryRequest.Headers.Add("Authorization", authorization);
+                retryRequest.Headers.Add("Accept", "application/json");
+                retryRequest.Headers.Add("User-Agent", "MiAssessment/1.0");
+                retryRequest.Content = new StringContent(requestBody, Encoding.UTF8, "application/json");
+
+                response = await _httpClient.SendAsync(retryRequest);
+            }
+
             var responseContent = await response.Content.ReadAsStringAsync();
 
             _logger.LogDebug("V3 下单响应: StatusCode={StatusCode}, Body={Body}", response.StatusCode, responseContent);