解决部分API签名出错的问题

essensoft · Aug 6, 2018 · 1f3bcc3 · 1f3bcc3
1 parent 582d169
commit 1f3bcc3
Showing 1 changed file with 4 additions and 1 deletion.
diff --git a/src/Essensoft.AspNetCore.Payment.Alipay/AlipayClient.cs b/src/Essensoft.AspNetCore.Payment.Alipay/AlipayClient.cs
@@ -479,10 +479,13 @@ private AlipayDictionary BuildRequestParams<T>(IAlipayRequest<T> request, string
         #endregion
 
         #region Model Serialize
+
+        static readonly JsonSerializerSettings jsonSerializerSettings = new JsonSerializerSettings { NullValueHandling = NullValueHandling.Ignore };
         private string Serialize(AlipayObject bizModel)
         {
-            return JsonConvert.SerializeObject(bizModel, new JsonSerializerSettings() { NullValueHandling = NullValueHandling.Ignore });
+            return bizModel == null ? string.Empty : JsonConvert.SerializeObject(bizModel, jsonSerializerSettings);
         }
+
         #endregion
     }
 }