diff --git a/YLErpDAL/Modules/TradeModule/TradeOAService.cs b/YLErpDAL/Modules/TradeModule/TradeOAService.cs
index fec432f5..54a7d44c 100644
--- a/YLErpDAL/Modules/TradeModule/TradeOAService.cs
+++ b/YLErpDAL/Modules/TradeModule/TradeOAService.cs
@@ -141,7 +141,7 @@ namespace YLErp.Modules.TradeModule
                     using (var form = new MultipartFormDataContent())
                     {
                         // 添加文件
-                        var fileStream = new FileStream(filePath, FileMode.Open, FileAccess.Read);
+                        using var fileStream = new FileStream(filePath, FileMode.Open, FileAccess.Read);
                         var fileName = Path.GetFileName(filePath);
                         form.Add(new StreamContent(fileStream), "file", fileName);
 
@@ -254,6 +254,12 @@ namespace YLErp.Modules.TradeModule
                         return new GuoLianOAResponse() { code = -1, data = new GuoLianOAData { msg = "上传附件失败" } };
                     }
                 }
+                if (tdoc == null)
+                {
+                    logger.Info("未找到确认书文档");
+                    return new GuoLianOAResponse() { code = -1, data = new GuoLianOAData { msg = "未找到确认书文档" } };
+                }
+
                 //通过UserName找到LoginName
                 var applicantLoginName = DbContextFactory.GetErpBaseContext().SystemUsers.Where(u => u.Name == UserInfo.UserName).Select(u => u.LoginName).FirstOrDefault();
                 // 构建dataMap