diff --git a/YLErpDAL/Modules/TradeModule/OAModels.cs b/YLErpDAL/Modules/TradeModule/OAModels.cs
index ca9c68d9..ae51ccc7 100644
--- a/YLErpDAL/Modules/TradeModule/OAModels.cs
+++ b/YLErpDAL/Modules/TradeModule/OAModels.cs
@@ -48,7 +48,7 @@ namespace YLErp.Modules.TradeModule
     /// </summary>
     public class UploadAttachmentResponse
     {
-        public int code { get; set; }
+        public string code { get; set; }
         public List<UploadAttachmentData> data { get; set; }
         public string status { get; set; }
     }
diff --git a/YLErpDAL/Modules/TradeModule/TradeOAService.cs b/YLErpDAL/Modules/TradeModule/TradeOAService.cs
index 90f6df0a..8f4a6536 100644
--- a/YLErpDAL/Modules/TradeModule/TradeOAService.cs
+++ b/YLErpDAL/Modules/TradeModule/TradeOAService.cs
@@ -147,18 +147,34 @@ namespace YLErp.Modules.TradeModule
                     logger.Info($"附件上传接口返回: {responseContent}");
 
                     // 解析响应
-                    var uploadResponse = JsonHelper.Deserialize<UploadAttachmentResponse>(responseContent);
-                    if (uploadResponse.code == 0 && uploadResponse.data != null)
+                    try
                     {
-                        // 提取annexId
-                        var annexIds = uploadResponse.data.Select(item => item.annexId).ToList();
-                        logger.Info($"成功上传附件，获取到{annexIds.Count}个附件ID");
-                        return annexIds;
+                        var uploadResponse = JsonHelper.Deserialize<UploadAttachmentResponse>(responseContent);
+                        if (uploadResponse != null)
+                        {
+                            if (uploadResponse.code == "0" && uploadResponse.data != null)
+                            {
+                                // 提取annexId
+                                var annexIds = uploadResponse.data.Select(item => item.annexId).ToList();
+                                logger.Info($"成功上传附件，获取到{annexIds.Count}个附件ID");
+                                return annexIds;
+                            }
+                            else
+                            {
+                                logger.Error($"附件上传失败：{uploadResponse.status}，code：{uploadResponse.code}");
+                                throw new Exception($"附件上传失败：{uploadResponse.status}");
+                            }
+                        }
+                        else
+                        {
+                            logger.Error("附件上传响应解析为空");
+                            throw new Exception("附件上传响应解析失败");
+                        }
                     }
-                    else
+                    catch (Exception ex)
                     {
-                        logger.Error($"附件上传失败：{uploadResponse.status}");
-                        throw new Exception($"附件上传失败：{uploadResponse.status}");
+                        logger.Error($"解析附件上传响应失败：{ex.Message}，响应内容：{responseContent}", ex);
+                        throw new Exception($"解析附件上传响应失败：{ex.Message}");
                     }
                 }
             }